2017 Vol. 7, No. 4

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Display Method:
Mechanical Properties of Rape Seedling Pot
He Yiming, Feng Shijie, Yan Bo, Xu Yujuan, Xiang Wei, Wu Mingliang
2017, 7(4): 1-6.
Abstract(582) [PDF 9610KB](145)
Abstract:
In view of problems of survival rate of rape pot seedling was affected by damage of seedling pot in the process of transplanting rape pot seedling，movement and mechanical properties of rape seedling pot under action of push-out seedling fixture were studied，change rules of ejecting force，motion displacement and pressure under different moisture content were explored，which could provide basis for parameters design of push-out seedling device and picking seedling mechanism of rape transplanter.Results showed that ejecting force of seedling pot was increased with raising of moisture content；as moisture content of seedling pot raised from 20.44% to 31.02%，range of motion displacement changed from 3.04～4.23 mm to 5.02～5.44 mm，pressure of seedling pot increased from 5.61 N to 7.90 N；as moisture content of seedling pot raised from 31.02% to 40.84%，range of motion displacement was almost invariant，pressure of seedling pot declined from 7.90 N to 4.83 N，with the raising of moisture content，pressure of seedling pot increased firstly and then decreased，the change was nonlinear，and pressure of seedling pot changed slightly under the same moisture content；in conclusion，when moisture content of seedling pot was about 30%，rape pot seedling was ejected easy and seedling pot was damaged less.
Experimental Research of Precision Seeding Apparatus for Coix
Xu Yan, Li Ning, Ren Yongfei, Liu Min, Lin Shuyun, Min Hang
2017, 7(4): 7-10.
Abstract(505) [PDF 1885KB](200)
Abstract:
With the aim at demand of precision seeding for coix on small hilly land in Guizhou province，scoop wheel precision seeding machine was applied for coix seeds hole sowing.According to requirements of coix seeding，the best parameters matching of seeding machine was discussed and analyzed.Under premise of fixed hill spacing and demanded seed filling performance，the function relation of conveyor velocity and rotate speed of discharging seeds was established.The ratio between holes of scoop wheel and grooves of discharging wheel was optimized.Experiments were carried out on seeding platform.Results of experiments showed that the speed of conveyor belt had no significant effect on number of discharged seeds.The requirement number of discharged seeds could not be satisfied when ratio of holes-grooves was 18∶18.The optimum parameter matching for seeding machine was that ratio was 18∶9，hill spacing was 140 mm，driving speed was about 5 kmh，and corresponding rotated speed of discharging shaft was 33.18 r/min.
Application of Circular Agriculture Mechanized Model in Hilly and Mountainous Areas of Chongqing City
Xie Lin, Ao Fangyuan, Xie Yingjie
2017, 7(4): 11-14.
Abstract(545) [PDF 647KB](176)
Abstract:
In view of existing problems of agricultural development system in hilly and mountainous areas such as imperfect system，poor interoperability among planting industry，breeding industry and agricultural mechanization，low level of integration，and low value-added agricultural products，application of circular agriculture mechanization mode in hilly and mountainous areas of Chongqing was studied.Through analysis of two typical application modes of circular agricultural mechanization in hilly and mountainous areas of Chongqing，support and security function of mechanization in development of circular agriculture industry in hilly and mountainous area of Chongqing were studied，and it′s mechanization mode was summarized，which could provide technical and theoretical support for circular agricultural mechanization in hilly and mountainous areas.
Experimental Study on Trailed Harvester for Caragna korshinskii Cutting
Li Xiaofei
2017, 7(4): 15-18.
Abstract(510) [PDF 8262KB](127)
Abstract:
A trailed harvester for Caragna korshinskii cutting was introduced，which integrated functions such as stumping，feeding，cutting，bundling and packaging.Construction and working mechanism were illustrated.Technical parameters of trailed harvester for Caragna korshinshkii cutting were optimized by a series of experiments and tests on cutting table，feeding，bundling and packaging systems.Not only existing problems were analyzed，but also reasonable harvesting period was suggested.
Development of Silage Harvester in Domestic and Abroad
Shao Heyong
2017, 7(4): 19-21.
Abstract(573) [PDF 5658KB](173)
Abstract:
Development of domestic and abroad silage harvester was analyzed.Difference between developed countries and China was compared.Development trend of silage harvester technology was concluded.It could offer reference for research and application of silage harvester in China.
Combination Technology of Machinery and Agronomy during Planting Process of Maize
De Wenqing, Zhang Lejia
2017, 7(4): 22-23.
Abstract(484) [PDF 301KB](166)
Abstract:
Combination technology of machinery and agronomy during planting process of maize was mainly introduced.It pointed out problems in maize cultivating and gave homologous terms of settlement.It provided base for maize planting researcher which was engaged in maize planting.
Using and Maintenance of 2BQJ-6 Suction Precision Seeder
Jiang Guichuan, Duan Junzhao
2017, 7(4): 24-26.
Abstract(496) [PDF 430KB](180)
Abstract:
A new 2BQJ-6 suction precision seeder was introduced，not only the main structure and working mechanism were illustrated，but also the adjustment and maintenance methods of major working parts were detailedly represented，which could deepen users′ understanding of product and provide reference for research and application of suction precision seeder in China.
Propaganda Report Strategy of Agricultural Machinery Exhibition
Wang Daqing
2017, 7(4): 27-28.
Abstract(625) [PDF 326KB](162)
Abstract:
Vigorous development of convention and exhibition economy not only prospers the market，but also promotes the development of related industries.Experiences in writing agricultural machinery exhibition were summaried based on the practice of interviewing agricultural machinery exhibition for many years.These experiences included plan ahead and deep excavation，looking for highlights，catching hot spot，finding gap and observing trend from exhibition scene.Market was accurately analyzed and forecasted in order to comprehensively and timely reflect the development of industry status and trends.Vivid contents were presented to reader.
Straw Coverage Detection Method Based on Sauvola and Otsu Segmentation Algorithm
Wang Lili, Xu Lanjun, Wei Shu, Wei Chongfeng, Zhao Bo, Yuan Yanwei, Fan Jinwei
2017, 7(4): 29-35.
Abstract(742) [PDF 10844KB](127)
Abstract:
The low accuracy image detection in natural light，the hollow of coarse straw，and the loss of finely straw details，all these problems may cause low accuracy straw coverage detection.A straw coverage detection method，which based on Sauvola and Otsu segmentation algorithm，was proposed.Firstly，Sauvola image threshold segmentation was used to extract detail area of grayscale image which based on color component space distance，then Otsu threshold segmentation was used to solve problem of straw hollow area which based on color difference.Finally，different threshold segmentation image was added，and straw coveragewas calculated.Field experiments results showed that better segmentation results and more accurate results of straw coverage had been achieved by proposed method.The maximum average error of different conditions of straw coverage was about 1.9%.The maximum average error of straw coverage in different regions was about 2.5%.Proposed method could effectively improve precision of straw identification.
Design of Monitoring and Control System for Family Micro Plant Factory
Han Dan, Liu Hua, Wei Yong, Sa Liangbing
2017, 7(4): 36-40.
Abstract(591) [PDF 1497KB](209)
Abstract:
In order to solve problems of heavy moisture and difficult to control in the process of planting crops in the balcony，family micro plant factory was put forward.It was a closed small plant，using intelligent control technology to adjust crop，using layer structure design and mating environmental monitoring device.System was based on wireless sensor technology，control technology and multi sensor fusion technology as the core，with STM32 as core control unit，and the PC as the home of planting environment monitoring equipment terminal real-time display environment parameters of the system.The system realized real-time display and precise control of many environmental factors，such as temperature，humidity，illumination and so on.It has higher practicability.
Application of MATLAB in De-noising of Plant Electrical Signal
Hu Junhai, Qi Ji, Wang Yingnan, Wu Haiwei, Zhu Fengwu, Yuan Yueming
2017, 7(4): 41-44.
Abstract(681) [PDF 879KB](176)
Abstract:
The plant electrical signal is very complex，with non-steady-state and time-varying.Before acquiring a useful signal，original signal needs to be preprocessed and acquired signal is strictly limited to useful frequency band.First，the signal is low-pass filtered to keep high frequency noise；and then notch filter is used to eliminate existence of the 50 Hz frequency interference caused by active equipment in test environment.The wavelet de-noising method is used to process acquired signals，so that noise or other unnecessary information can be separated more easily.Through programming in MATLAB language，digital filter was designed to realize pretreatment of signal.The method of wavelet analysis was used to analyze signal，and purpose of noise reduction and interference removal was achieved，so plant electrical signal was analyzed effectively.
Integrated Water and Fertilizer Equipment and Control System in Closed Rookwool Cultivation
Xu Fan, Zhao Qian, Jia Dongdong, Nie Mingjun, Tian Ye, Duan Dandan, Guo Wenzhong
2017, 7(4): 45-49.
Abstract(894) [PDF 11130KB](128)
Abstract:
To improve water and fertilizer management in closed rock wool cultivation，integrated water and fertilizer equipment and intelligent control system were designed and developed independently，especially for closed rock wool cultivation.The system was used for examine，match，and irrigate nutrition solution automatically，that was according to plant growth，water and fertilizer requirement，and growing environment.It could accomplish nutrition solution recycling combining with technique of recycling and disinfection.This system provided hardware equipment and intelligent control system，which is convenient for operation and running automatically.By this system，the users could manage water and fertilizer precisely in rook wool cultivation，it could save water and fertilizer by 20%，and there was no release to environment in agricultural production.The system was applied in many horticulture gardens，as a result，the system run steadily.The yield of tomato production reached to 45.4 kg/m2 in Ningxia Horticultural industrial park.
Design on Control System for Lateral Hanging Transplanting Machine
Yao Tao, Zhou Zengchan, Chen Lizhen, Li Xiugang, Li Dongxing, Zhao Jing
2017, 7(4): 50-53.
Abstract(573) [PDF 5077KB](134)
Abstract:
In view of low efficiency of manual transplanting，longer time，not standard transplanting process，and large market demand，a lateral hanging transplanting machine was designed.The system was not only suitable for drought seedling transplanting，but also could be used as a transport device，and lifting transportation work platform and transplanting was combined to realize multi-usage.Its power source was battery power，non-polluting and no noise.Its automatic control system adopted Siemens PLC 200，encoder，motor speed and testing system of proximity switch control.It could accurate grab seedlings，and feed seedlings timely，effectively guarantee survival rate of seedlings and cultivation of consistency.
Design of Emergency Power Supply Device for Facility Agriculture and Industrialization Efficient Breeding
Zhao Hua
2017, 7(4): 54-56.
Abstract(643) [PDF 3766KB](116)
Abstract:
In order to be suitable for use in the vast rural areas where geographical conditions were changing，an emergency power supply device which was suitable for facility agriculture and industrialized breeding was designed and researched.It was high-power，all-weather，mobile，wide application range，short switching time，no noise，both three-phase and two-phase.The intelligent control instrument with automatic tracking function was used to detect，diagnose and isolate the emergency power supply device.The charging and discharging function of emergency power supply could be adjusted according to use of main power.The project passed scientific and technological achievements of Shanxi Provincial Science and Technology Committee had good economic，social and ecological benefits.
Design of Agricultural Automatic Irrigation System Based on ZigBee
Yu Tao
2017, 7(4): 57-59.
Abstract(563) [PDF 2351KB](167)
Abstract:
In recent years，with increase of population，rapid development of economy and continuous improvement of urbanization，contradiction between water resources is becoming more and more serious，and water is an indispensable factor in agricultural production.At present domestic agricultural irrigation system is mostly by manual operation，time-consuming and waste of water resources，the result is not satisfactory.Part of the irrigation system is advanced，but the practicability is not strong.Therefore，an automatic agricultural irrigation system based on ZigBee wireless sensor network technology was designed.Working principle，software design and hardware structure of system were introduced，and future development prospect was also described.
Rural Energy Structure and Emission Estimation of Main Pollutant in Zhejiang Province
Yan Zhenqi, Ye Weichao, Chen Jian, Xiang Huifeng, Yu Xianghong, Zhao Chao
2017, 7(4): 60-64.
Abstract(749) [PDF 915KB](173)
Abstract:
Based on energy consuming data of rural area in Zhejiang province in 2009—2014，the amount of main pollutant including SO2，NOX and TSP were calculated.Results showed that rural energy structure in Zhejiang province remained as a traditional model.From the view of pollutant emission and contribution，coals contributed 94.3% for SO2 ，86.6% for NOX and 39.8% for TSP.The contribution of SO2，NOX and TSP from straws were 8.9%，2.4% and 34.5% respectively.Optimizing energy structure and using clear energy substituting for coals were effective ways to decrease emission of SO2 and NOX.Transforming the straws to high grade biofuels was effective way to decrease emission of TSP and NOX.
Effect of Base Material and Core Material on Compressive Strength of Self Thermal Insulation Block Foamed Concrete
Lv Tiebiao, Chen Xi, Xiang Donghao, Hu Junhai, Yuan Yueming
2017, 7(4): 65-67.
Abstract(563) [PDF 3386KB](115)
Abstract:
As a kind of masonry material，compressive strength of self thermal insulation block foame concrete is one of the important factors that can meet national standards.Through literature review and preliminary test，it was screened as preparation of foamed concrete that hydrogen peroxide with concentration of 27% was used as foaming agent，cement and flyash as cementitious materials，calcium stearate and polycarboxylate as admixtures.Then the foamed concrete were compound which density of grade 200，250 and 300 as core material and that of grade 500，700 and 900 as the base material.Thickness of composite substrate was 25，30 and 35 mm respectively，using orthogonal design L9（34），nine groups of foamed concrete insulation block for the experiment arrangement were made.Through the test and analysis of test data，the most influential factors on compressive strength was confirmed.
Characteristic of Agricultural Ecological Architecture in Foreign Countries and It′s Enlightenment to China
Li Yan, Wu Yansheng
2017, 7(4): 68-70.
Abstract(569) [PDF 2828KB](335)
Abstract:
As a new product of combination of agriculture and architecture，agricultural ecological architecture is gaining more and more attention.And it has become a hot spot in the study of agriculture and architecture.Application of several typical agricultural techniques in architecture in the world was analyzed combined relevant construction cases.It provided reference for the development of agricultural ecological architecture in China.
Development and Mode Selection of Ecological Circular Agriculture in Zhejiang Province
Zhang Yongle, Wang Huirou, Han Chenyang, Yu Da, Xu Lijun, Cao Huanling
2017, 7(4): 71-74.
Abstract(593) [PDF 732KB](176)
Abstract:
Using questionnaire investigation，household research and literature review，development status quo and problems of ecological circulation agriculture in Zhejiang province were analyzed.Development modes of ecological circulation agriculture in Zhejiang can be categorized into 4 types，including stereoscopic compound mode，multi-industrial integration mode，agricultural waste recycling mode and rural tourism mode.Typical problems included low awareness of ecological circulation of agricultural，low education level and anti-risk capability of farmers.Based on characteristics of modes，technological pattern and profitable earning methods，regional choice of ecological circulation agriculture were proposed.
Relationship between Rural Landscape Planning and New Rural Construction
Liu Zhilan
2017, 7(4): 75-76.
Abstract(497) [PDF 307KB](173)
Abstract:
Planning of new rural construction should follow principles of‘production development，well-off life，rural wind civilization，clean village capacity and democratic management’.This principle puts forward new requirements and challenges for construction of new rural areas，and is also the basis of relationship between rural landscape planning and construction and planning and construction of new countryside.First of all，basic ideas of construction and development of new countryside were analyzed，and then connotation and elements of concept of rural landscape were summarized.Finally，coupling relationship between them was discussed.
Plant Selection Method in Low Temperature and Low Carbon Landscape Design
Xia Bo
2017, 7(4): 77-80.
Abstract(540) [PDF 615KB](160)
Abstract:
In order to satisfy the need of cold weather and low temperature，method of selecting plants in low temperature and low carbon landscape design was studied.Existing problems of selection of dominant plants in landscape design because of low temperature resistance and poor erosion effect were analyzed.According to existing problems，concrete methods of plant selection in low carbon landscape design were put forward.Specific test results showed that，plants could be rationally molded according to oxygen secretion from roots of wetland plants and removal of N and P nutrients in Dianchi，so as to provide reference for design of extremely low temperature and low carbon gardens.
Legal Issues of Rural Ecological Protection in Process of Urbanization in China
Qiao Qiuzhen
2017, 7(4): 81-83.
Abstract(438) [PDF 424KB](146)
Abstract:
To achieve a comprehensive well-off society，pace of rural well-off is must accelerated，especially for process of urbanization in rural areas in China.In process of urbanization，there has been a series of ecological problems，such as environmental pollution，destruction of ecological environment in rural areas is more serious，and this is due to insufficient attention to rural areas environmental problems in the process of urbanization，which will further affect our living environment and people′s health，and even affect the realization of a well-off society in an all-round way.Based on analyzing present situation of rural ecological environment legislation in China，institutional defects of rural ecological environment protection was further analyzed，relevant legal opinions and suggestions were put forward，so that，ecological protection has been solved in process of rural urbanization in China.
Results and Countermeasures of Leaft Vegetables Pesticide Residue Testing in Shanxi Province
Wang Jielian, Zhang Lin
2017, 7(4): 84-86.
Abstract(591) [PDF 507KB](169)
Abstract:
Sampling detection of 48 kinds of pesticide residue in 588 leaf vegetables from 2015 to 2016 of Shanxi province′s production bases，wholesale markets and supermarkets were made.Results showed that overall trend of exceed rate of pesticide residue in Shanxi was higher than whole level of vegetables.Among vegetables which exceed standard，the celery and lettuce were relatively more.Among pesticides which exceed standard，carbofuran and omethoate which were forbidden and chlorpyrifos and abamectin which were regular were relatively more.Pesticide residue exceed rate to standard was higher 0.5 percentage points from Shanxi than other provinces.Some countermeasures to solve problems were put forward，such as supervising pesticide quality strictly，liminating hidden compositions，improving to deal with forbidden pesticides，implementing negative growth，enhancing standardized production，increasing to certify of bases，increasing detection degree，and guiding production with test data.
Determination of Cadmium Content in Grain by Anodic Stripping Voltammetry
Li Xuan, Duan Yulin, Wen Tao, Cao Yiqun, Ji Riwen
2017, 7(4): 87-88.
Abstract(453) [PDF 331KB](180)
Abstract:
An anodic stripping voltammetry method was established for fast determination of cadmium content in grain.Samples were dealt with microwave digestion，by using glassy carbon electrodes as working electrode，AgAgCl electrode as reference electrode and platinum electrode as counter electrode for determination of cadmium content in grain.The detection limit of method was 0.4 μgL.A standard adding method was used and average recovery rate was between 100% and 104%.A sample of a certain concentration was determined for 6 times，with a coefficient of variation of 2.43%.This method was stable，rapid and accurate，and could be widely used in emergency monitoring of food safety accidents.
Optimization of Deacidification Process of Rice Bran Oil with High Acid Value by Physical Distillation
Zhang Henan, Zhao Lichun, Song Erli, Wang Jiajia, Meng Si, Wang Tao
2017, 7(4): 89-91.
Abstract(622) [PDF 439KB](179)
Abstract:
Because of role of lipase，rice bran oil is high in acid value，dark in color and difficult in refining.There are many disadvantages in chemical deacidification，such as low refining rate，residual additives，high refining cost and many side effects.Physical distillation acid refining of rice bran oil with high acid value has advantage highlights.Refining effect of distillation deacidification was studied，and change of acid value and color after deacidification was investigated.Rice bran oil distillation deacidification process condition was optimized through single factor and orthogonal experiment.Orthogonal test was based on vacuum，distillation temperature and distillation time.Optimum conditions were vacuum degree 90 kPa，time 1.7 h，distillation temperature 215 ℃.
Present Situation and Development Suggestion of Food Safety Supervision in China
Liu Xiao
2017, 7(4): 92-94.
Abstract(528) [PDF 483KB](156)
Abstract:
Since reform and opening up，with progress of society，economic development，and living standards continue to improve，food on the table is also more and more rich.However，ensuing food quality and related problems also affect people′s lives in every aspect.Food safety accidents occur frequently in China，not only food industry has far-reaching impact，but also endanger health and vital interests of people.It is a major livelihood problem related to future development of country.In order to better ensure food safety and regulate and supervise the food market，Food Safety Law was formally implemented in 2015.Present situation of supervision of food safety and how to strengthen supervision and management in the context of Food Safety Law were expounded.
Agricultural Water Resources Efficient Utilization in Rizhao City under Perspective of Ecological Civilization
Du Shoujian, Liu Quanru, Yin Honglian, Wang Juan
2017, 7(4): 95-99.
Abstract(581) [PDF 810KB](153)
Abstract:
Under background of global climate warming and shortage of freshwater resources，Rizhao，as a typical coastal city，efficient utilization of agricultural water resources is the only way to implement construction of ecological civilization and achieve sustainable development.Combining Rizhao meteorological，irrigation and water conservancy，land utilization，experience of coastal city for agricultural water resources utilization was discussed and summarized，and coastal city agriculture development under perspective of ecological civilization was explored.In Rizhao，agricultural population of cultivated and land distributions showed regional differences，meanwhile the dry land area was large，and relative lack of reservoir engineering.All of these severely restricted agricultural development，and affected construction of ecological civilization.Reasonable and effective construction of farmland water conservancy projects，the work of water and soil conservation and the introduction of water-saving irrigation technology，could fully promote reasonable utilization of resources and agricultural multi-function development，which provide construction experience of ecological civilization and efficient utilization of agricultural water resources for coastal city.
Discussion on Construction Technical Difficulties and Quality Control Measures of Farmland Water Conservancy Project
Xiong Qunying
2017, 7(4): 100-102.
Abstract(573) [PDF 481KB](185)
Abstract:
Construction quality of farmland water conservancy project is closely related to development of agriculture.In order to support development of agriculture，it is necessary to strictly control construction quality of farmland water conservancy projects.Farmland water conservancy projects was briefly summarized，then technical difficulties and influence factors in process of farmland water conservancy projects were conducted.Finally management measures were put forward to ensure construction quality.
Measures to Control Cost Risk of Agricultural Water Conservancy Project
Fu Yunyou
2017, 7(4): 103-104.
Abstract(407) [PDF 305KB](156)
Abstract:
In process of agricultural water conservancy project management，cost control belongs to core content.Therefore，it is necessary to effectively control various factors that may affect construction cost，make use of practical measures to ensure cost control of project cost，and effectively implement cost control measures through accurate project cost risk analysis，so as to promote development of agricultural water conservancy project.
Quality Control Measures about Water Conservancy Projects
Chen Xiaomei
2017, 7(4): 105-106.
Abstract(337) [PDF 332KB](173)
Abstract:
Water conservancy project is basic construction of country.However，some problems are often exposed in construction of water conservancy projects，which are imperfect.There are many factors affecting construction quality of water conservancy projects.Influence degree was analyzed and quality control measures were put forward.
Planning and Designing of Low-pressure Pipeline Irrigation System in Science Park of SXAU
Xue Nan, Zheng Decong, Qi Yuting, Gao Changzhen
2017, 7(4): 107-108.
Abstract(396) [PDF 290KB](148)
Abstract:
Example of reconstruction project of low-pressure pipeline irrigation system in Science Park of SXAU was illustrated，operation mode of cooperation between well and reservoir was introduced，a rational planning was searched，and provided a reference for similar projects.
Characteristic and Development Suggestions of Water Saving Irrigation Machinery in China
Miao Fang
2017, 7(4): 109-110.
Abstract(384) [PDF 325KB](185)
Abstract:
Water saving irrigation machinery plays an important role in the production of agriculture and animal husbandry and drought control and drainage in China.Development course and characteristics of main water-saving irrigation machinery such as sprinkler irrigation equipment and micro irrigation equipment were introduced.Existing problems were pointed out.Development suggestions were put forward.
Application Suggestions of Water Conservancy Project Quota in Agricultural Engineering Project
Liu Wei
2017, 7(4): 111-112.
Abstract(460) [PDF 297KB](145)
Abstract:
Concept of water conservancy project quota was introduced into agricultural engineering construction，and it was summed up by practice in order to promote efficient application of agricultural engineering and water conservancy project.Application of water conservancy project quota in agricultural engineering was briefly analyzed and discussed.Application of water conservancy project quota in agricultural engineering project was studied by using literature，quota calculation and practical application examples.
Stakeholders′ Identification and Conflict Management of Model in Land Consolidation Dominated by Village Collectives：Taking Z Village Land Renovation Project in C Town of Beijing City as an Example
Yi Chengcheng, Ai Dong
2017, 7(4): 113-119.
Abstract(377) [PDF 992KB](148)
Abstract:
In recent years，some village collectives began to have desire to invest in land consolidation，and to avoid government-led way to self-financing and self-consolidation.The village collectives are the main actor of land consolidation，as for the village collective self-consolidation behavior，taking Z village in Beijing as an example，a comparative analysis with traditional land consolidation model of roles，power and responsibilities，and interests of various stakeholders in Z village land consolidation case were made by using theory of stakeholders.On the basis of this，it showed conflict in the land consolidation mode dominated by village collective，and some suggestions on development of land consolidation model led by the village collective，were put forward，such as orientation of government and village collective，reduction of stakeholders′ dependence on land.
Investigation and Analysis of Reclamation Potential in Chongqing from 2016 to 2020
Feng Wang, Liu Jinsen
2017, 7(4): 120-121.
Abstract(420) [PDF 261KB](160)
Abstract:
In order to thoroughly implement development strategy of three plenary session of four session of Chongqing Municipal Committee of five major functional areas，in order to promote implementation of livelihood projects in Chongqing city，and earnestly safeguard legitimate rights and interests of farmers，truly and accurately reflect situation of rural construction land，rural construction land reclamation potential in Chongqing city in 2016—2020 was investigated.On the basis of rural settlements and rural population，the theoretical potential of reclamation was predicted，future scale of reclamation was mastered，and adequate preparations were made for reclamation work.
Application of Land Consolidation Suitable for Mechanization in Hilly and Mountainous Areas of Chongqing City
Ao Fangyuan, Qin Dachun, Zhou Bing, Xie Yingjie, Xiong Zhigang, Peng Weiqin
2017, 7(4): 122-124.
Abstract(469) [PDF 517KB](152)
Abstract:
In order to explore land consolidation by machinery and then to promote the development of mechanization，solve ‘the last mile’ problem of site condition of large and medium agricultural machinery in hilly and mountainous areas，improve working condition and increase operating efficiency of agricultural machinery in hilly and mountainous areas，Chongqing agricultural sector carried out land consolidation suitable for mechanization since 2014 and it had a good outcome.The whole working process of land consolidation suitable for mechanization of Chongqing city was introduced，including source of ideas，experimental exploration，standard formation，popularization and application，and its promoting effect，which could provide theoretical and technical support for the development of agricultural mechanization in whole southern hilly and mountainous areas.
Comprehensive Evaluation of Cultivated Land Resources Protection Based on Soil Ecological Environment
Wang Haipeng, Jing Caiqiao, Zhang Peng, Yuan Ning, Xue Lian, Pu Ming
2017, 7(4): 125-126.
Abstract(456) [PDF 354KB](159)
Abstract:
Investigation on soil environmental quality of cultivated land was carried out in Lanzhou city.Soil ecological environment quality was evaluated according to grade evaluation of cultivated land productivity，grading standard of cultivated land fertility，land selenium accumulation standard，and soil environmental quality standard green food producing area.Variation law of cultivated land productivity was obtained by GIS.It would provide reference for land use development in the future.
Development of Closed Type Climate Box for Stereo Rice Seedling Raising
Quan Longzhe, Zhang Mingjun, He Shihang, He Di
2017, 7(4): 127-132.
Abstract(378) [PDF 2661KB](106)
Abstract:
In order to solve problem of seedling low quality affected by climate and environment for traditional rice seedling，with the aim of controlling internal environment of seedling raising system，a new climate box for rice seedling raising was designed.Light intensity and time of artificial light was adjusted，temperature，humidity and CO2 concentration were controlled by PID fuzzy control，nutrient supply cycle and supply quantity were adjusted，and interior mounted visual surveillance system.The illumination range of climate box was 0～1.2×104 Lx，temperature range was 0～50 ℃，the deviation was±0.5 ℃，humidity range was 50%～99% RH，deviation was±5% RH，CO2 concentration range was 0.028%～0.2%，deviation was±0.008%.Test results showed that seedlings of climate box cultivation had developed roots，green color and wide stem，it could reach 3 leaf stage after planting for 20 days，the plant height could reach standard of transplanting seedlings.
Internal Flow Field Simulation of Impurity Removing Device Based on SolidWorks Flow Simulation for Sugarcane Harvester
Nong Hongliang, Zeng Bosheng, Mo Jianlin, Fan Yuhang
2017, 7(4): 133-137.
Abstract(372) [PDF 11439KB](134)
Abstract:
3D model of axial fan impurity removing device for sugarcane harvester was established and simplified by SolidWorks，and its inner flow field was simulated based on SolidWorks Flow Simulation software.According to actual situation，simulation boundary condition parameters were set，and then the simulations of outlet velocity field and pressure field distribution of impurity removing device were finished under influence of different rotational speeds and depths of hub entering windshield.Additionally，simulated data and experimental results were compared，which could provide reference for design and optimization of axial fan impurity removing device of sugarcane harvester.
Design of 3D Platform for Agricultural Operation
Zhang Yanhong, Zhang Lan, Guo Jianye, Pan Zhanglei
2017, 7(4): 138-141.
Abstract(480) [PDF 6707KB](111)
Abstract:
3D platform for agricultural operation was used for greenhouse vegetables mechanized production.The platform was powered by power supply，which could be attached to different agricultural machinery，complete rotary tillage operations，ridge operations，transplanting operations，transportation operations and other production operations.Use of programmed design could achieve automation or semi-automatic control.The platform could greatly improve the level of facilities and vegetable production of mechanized operations and quality of operations.And in the same park，the host platform could be transferred between greenhouse operations，improve equipment utilization.
Design on Imitating Manual Automatic Shaper for Pie Food Based on Tapered Wheel
Lin Xue, Huang Pengcheng, Chen Changqing, Huang Dongming, Hou Chang′an
2017, 7(4): 142-145.
Abstract(428) [PDF 7893KB](113)
Abstract:
A kind of imitating manual automatic shaper for pie food based on tapered wheel was designed.It could put granular food on pie and make pie thin and rounded.Moreover，it could jet the syrup on the pie.The traditional flavor was reserved.This automatic shaper was automatically controlled.It has high production efficiency.Technical parameters were adjustable according to production demand.The social benefit and market prospect was remarkable.
Design of Automatic Packing Machine for Jujun Grass Powder
Lin Jingfeng, Lin Changshan, Li Jian, Yang Guobin, Zhang Dehui
2017, 7(4): 146-151.
Abstract(609) [PDF 5072KB](118)
Abstract:
Because giant powder packing with artificial grass，lead to emergence of work site packed full of dust，harsh environment，a tremendous impact on health of workers，packing problems of poor quality，low production efficiency.Aiming at above problems，through independent test，automatic packing machine Jujun grass powder was designed.Through design scheme，design principle and practical analysis，whole design process was described，and a prototype was made to verify feasibility of design.The packing machine has functions of continuous bag，pressing and sealing，and design of whole machine was simple.In work process，smooth，stable，good coordination，high packing quality，tight sealing bag，and large material density were achieved.Storage and automated packaging issues after processing of Jujun grass were solved.It provided a reference for design of other forage packing machine.It contributed to realization of mechanization production process for Jujun grass.It would help solve problems of aging rural labor force and shortage of labor force.
System Development of Side Mounted Electric Transplanter
Hu Fusheng, Zhou Zengchan, Bu Yunlong, Dong Wei, Li Xiugang, Lan Libo
2017, 7(4): 152-154.
Abstract(376) [PDF 5979KB](99)
Abstract:
The existing vegetable seedling transplanter for field have characteristics of huge volume，larger operating radius，internal combustion engine，and exhaust emission.These made it hard to work directly in greenhouse.The horizontal side hanging structure was adopted in side mounted electric transplanter system，it was small and easy to turn，DC motor asits transplanting power，it wouldn′t produce waste gas，so it wouldn′t pollute the air in greenhouse.These characteristics made side mounted electric transplanter more suitable for transplanting in greenhouse，not only planting efficiency was improved，but also labor intensity and labor cost were reduced.
Forward and Inverse Solution Analysis of Kinematics Position about Palletizing Mechanical Arm
Zhu Xundong, Xu Haigang, Zhao Dongjie
2017, 7(4): 155-158.
Abstract(457) [PDF 890KB](157)
Abstract:
Accurate forward and inverse solution analysis of kinematics position is foundation of trajectory planning，motion control and dynamic analysis for mechanical arm.Taking a certain type of palletizing robot arm as research object，D-H method and analytic method were used to make forward and inverse solution analysis of its position.Analysis results of two methods were consistent，which verified reliability of analysis methods and results to some extent，and also laid a foundation for further research.
Modification Design of Feed Liquid Component Additive Equipment
Zhang Xiaogang
2017, 7(4): 159-163.
Abstract(439) [PDF 10796KB](124)
Abstract:
Based on flow meter metering type feed liquid component addition equipment，weighing feed liquid component additive equipment was designed.Research and development process was introduced，oil inlet filtration system and weighing system were redesigned by increasing equipment power，and key dimensions used in the design were analyzed.Then based on describing working principle，test process and conclusion were elaborated.Finally，advanced nature of equipment was surely summarized.
Improvement Design of One Kind of New Raiser
Zhang Bin, Guo Fuyou
2017, 7(4): 164-165.
Abstract(458) [PDF 371KB](162)
Abstract:
Aiming at main problems existing in the raiser，failure cause was analyzed.Improvement design thinking of new raiser was put forward，such as capacity building，improvement design of distributor，and structure optimum of hydro-cylinder.
Problems and Suggestions on Reform of Curriculum Examination in Colleges and Universities
Zhou Jun, Zhuo Fangfang, Han Changjie, Zhang Jing, Zhang Zhenguo
2017, 7(4): 166-169.
Abstract(456) [PDF 663KB](146)
Abstract:
Examination has guiding significance to teaching.Different curriculum examination reforms were carried out in many colleges and universities.But achievements was not remarkable.Examination reform was analyzed.Advantage and shortcoming of various modes of reform were found.Restrictive factors of reform were summarized and measures were put forward.It provided reference for further reform research.
Application of BOPPPS Teaching Mode in Application-oriented Undergraduate Course Teaching in Ethnic Minority Areas：Taking Curriculum Instruction for‘Research Methods of Tea Science’as an Example
Xiao Guoxue
2017, 7(4): 170-173.
Abstract(512) [PDF 628KB](143)
Abstract:
In order to improve step by step tea science major students’initiative，enthusiasm and innovation in learning‘Research Methods of Tea Science’curriculum，based on a discussion on the teaching status of‘Research Methods of Tea Science’in applied undergraduate colleges of ethnic minority areas，foreign advanced BOPPPS teaching mode was applied in‘Research Methods of Tea Science’curriculum teaching in application-oriented university in minority areas.Good teaching results have been achieved.Finally，application process and results of BOPPPS teaching model were reviewed.
Case Applications of Finite Element Analysis in‘Materials Mechanics’
Zhang Xiao′an
2017, 7(4): 174-177.
Abstract(366) [PDF 1698KB](136)
Abstract:
Basic concepts of‘Material Mechanics’were analyzed and validated by using ANSYS software.Basic concepts and knowledge point theory，which were abstract and difficult to understand，would be showed vividly to students in the form of graphic presentation，to help students to understand these basic concepts.Practice showed that application of ANSYS software in‘Materials Mechanics’could reduce difficulty in learning this course and improve students’enthusiasm.
Construction of Professional Teaching Quality Guarantee System in Colleges and Universities under Condition of Compressed Credit
Zhou Lihong, Li Dong, Gong Lijuan, Wang Yi, Bian Minghong
2017, 7(4): 178-180.
Abstract(545) [PDF 460KB](155)
Abstract:
In order to ensure improvement of college students′autonomous learning ability and comprehensive quality level，teaching reform measures in colleges and universities are depressed year by year，which brings great challenge to quality teaching in colleges and universities.Taking Sichuan University of Science and Engineering as an example，from reform of training program and revision of syllabus，teaching methods，improve teaching methods and make full use of the second class and other aspects，construction of teaching quality guarantee system in colleges and universities under condition of compressed credit was analyzed.
Research Progress and Development Suggestions on Plant-derived Enzyme Nutrient Solution
Fang Sheng, Mao Jianwei, Shan Zhichu, Mao Yangchen, Li Haohao
2017, 7(4): 181-186.
Abstract(557) [PDF 881KB](244)
Abstract:
Plant-derived enzyme nutrient solution which has many functions such as antibacterial，nutrition and growth promoting effects on crops is generally made from plant tissues or crop residues mixed with sugar and enzyme through fermentation.In accordance with developing trend of organic agriculture，research and product promotion of enzyme nutrient solution should be taken to deal with problems of agricultural resources and ecological environment.Research status of plant-derived enzyme nutrient solution on preparation process，composition and applications were described.Its prospect was forecastde.And suggestions were put forward.
Characteristics and High-yielding Cultivation Techniques of Super Rice Shenliangyou 5814
Huang Jing
2017, 7(4): 187-188.
Abstract(462) [PDF 333KB](149)
Abstract:
Experiment and demonstration of super rice Shenliangyou 5814 in Baisha county of Hainan province were introduced.Its key points of high-yielding cultivation techniques in Baisha county of Hainan province was summarized，which contained seedling cultivation，planting density，irrigation and fertilization management and prevention of pest，disease and weed.These could provide technical basis for popularization and application of super rice Shenliangyou 1548 in Baisha county of Hainan province.
Planting Pattern of Artificial Edible Fungi under Forest
Zeng Zhimei
2017, 7(4): 189-190.
Abstract(439) [PDF 344KB](154)
Abstract:
At present，under-forestry economy is vigorously developed by governments at all levels of our country，farmers were encouraged to restore forest area and increase economic benefits by returning farmland to forest.Cultivation of edible fungi under forest is one of important under-forestry economic patterns.Planting edible fungi under forest can not only make full use of forest resources，but also promote paragenesis and supplementary of forest and edible fungi.So far，planting artificial edible fungi under forest is not a simple planting technology.After exploration and practice of planting edible fungi under forest over ten years，some under-forestry planting of edible fungi has got some achievements，but it is still difficult to implement or expand extensively.In order to solve this problem，attention of relevant departments，especially forestry authorities，is required，in-depth investigation and research，reasonable and appropriate development plan are also needed.Planting pattern and related issues of artificial edible fungi under forest were discussed.
Damage Investigation and Control of Gynaikothrips Uzeli on Ficus Microcarpa in Shenzhen
Wen Kai
2017, 7(4): 191-193.
Abstract(487) [PDF 484KB](142)
Abstract:
Damage investigation of Gynaikothrips uzeli on Ficus microcarpa in Shenzhen was carried out from May to June in 2011.Results showed that plant damage rate of Gynaikothrips uzeli on Ficus microcarpa in Shenzhen was 92.55%，there were some differences in different regions，plant damage rate reached up to 98.82% in Futian，and plant damage rate was relatively low and about 76% in Luohu.Leaf damage rate of Gynaikothrips uzeli on Ficus microcarpa in Shenzhen was 46.25%，and there were significant differences in different regions，leaf damage rate in Luohu was 57.65%，and leaf damage rate in Nanshan was lowest，which was 30.33%.Pest density of Gynaikothrips uzeli on Ficus microcarpa in Shenzhen was 13.09 head per leaf，pest density reached up to 19.10 head per leaf in Futian，and pest density in Nanshan was lowest，that was 6.56 head per leaf.According to survey findings and research progress of domestic control technology，control measures of Gynaikothrips uzeli on Ficus microcarpa were explored，which contained plant quarantine，chemical control and agricultural measures.
Development Status and Countermeasures of Rural E-commerce in China
Luo Jianping
2017, 7(4): 194-195.
Abstract(479) [PDF 357KB](153)
Abstract:
Importance of rural e-commerce was analyzed and existing problems of rural electrician were summarized，and some suggestions for these problems were put forward to provide reference for relevant personnel.
Present Situation and Development Suggestion of Agricultural Products Export in China
Lei Fenggang
2017, 7(4): 196-197.
Abstract(489) [PDF 344KB](154)
Abstract:
Quantity and trade volume of China′s agricultural exports are increasing year by year，this shows that share of agricultural products in the international market is gradually rising，and market competitiveness is constantly increasing.Current situation of agricultural products export in China was investigated and studied，structure and optimization of agricultural products export，problems faced，corresponding measures and suggestions were analyzed.
Problems and Suggestions of Agricultural Industrialization in Hunan Province
Chen Huizhi
2017, 7(4): 198-199.
Abstract(494) [PDF 396KB](147)
Abstract:
Based on survey and analysis of present situation and problems of Hunan province in the process of agricultural industrialization，combined with relevant national policies and other provinces of advanced experience，some suggestions and strategies for promoting industrialization of agriculture in Hunan province were elaborated and expounded.
Current Situation and Countermeasures of Agricultural Economy Development in China
Li Yanrong
2017, 7(4): 200-201.
Abstract(438) [PDF 328KB](158)
Abstract:
With rapid development of social economy，agricultural economy of our country also presents development trend of high speed.Of course，there are some problems in its development process，which causing trouble for further development of agricultural economy.Agricultural economy as the foundation of national economy in our country，its development is quite important.Thus，problems in agricultural economy development were analyzed，and solutions were explored.It could better promote further development of agricultural economy in our country.
Relationship between Developing Modern Agriculture and Cultivating New Farmers
Li Yaya
2017, 7(4): 202-203.
Abstract(502) [PDF 314KB](148)
Abstract:
With development of China′s economy into new normal state，the reform has entered in deep water area，social development has entered a new stage，agricultural development structure，rural development environment and farmers′ development concept are undergoing profound changes.Meaning and characteristics of modern agriculture，effective way to develop modern agriculture，connotation of new farmers，and relationship between developing modern agriculture and cultivating new farmers were introduced.
Present Situation and Development Suggestion of Agricultural Special Fund Management
Qin Shanshan
2017, 7(4): 204-205.
Abstract(365) [PDF 352KB](145)
Abstract:
Since reform and opening to outside world，the pace of China′s development has been speeding up.In the context of deepening reform，state financial investment in construction of all walks of life has increased.Agriculture is not only basic industry of our country，but also pillar industry.The status of agricultural industry in the social economy is the most important thing at any time.Therefore，how the country′s capital input in agriculture serves farmers better is a problem that agricultural financial workers should consider carefully and concentrate on.On this basis，significant problems on China′s current situation and management of agricultural financial special funds were elaborated，and opinions and suggestions to improve their financial management of special funds for agriculture were put forward.

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