农业工程

Wang Yanhong

2014, 4(4)

Abstract(628) [PDF 608KB](3)

Abstract:

Yu Shuai, Ran Jia

2014, 4(4)

Abstract(519) [PDF 1365KB](3)

Abstract:

Yu Shuai

2014, 4(4)

Abstract(506) [PDF 927KB](3)

Abstract:

2014, 4(4)

Abstract(429) [PDF 344KB](49)

Abstract:

Xiao Lin

2014, 4(4)

Abstract(369) [PDF 187KB](56)

Abstract:

Development Status and Trend of Rice and Wheat Straw Returning Technology

Cheng Yulong, Zhang Ligang

2014, 4(4): 1-4.

Abstract(781) [PDF 1650KB](80)

Abstract:
Soil organic matter has positive impacts on its physical，chemical and biological properties，and the level of its content is a main symbol of soil fertility.Straw returning to field is the most basic way to restore and maintain the content.Current status of development and research of straw returning technology were described.Induction and analysis in detail were made in accordance with the straw depth，from which development process and direction of straw returning machine were teased out.Some opinions and suggestions for the future research of straw returning technology were put forward.

Research Status and Prospect of Forest-fire Prevention Ditching Device

Qian Xiaodong, Ru Yu, Wang Dong, Cong Jinghua

2014, 4(4): 5-9.

Abstract(831) [PDF 2372KB](75)

Abstract:
By using traditional and agricultural ditching device to plough fire lane not only has poor effect，but also inefficiency is low.Domestic and foreign characteristics and research methods of ditching device were reviewed.The idea of designing a special forest fire prevention opener with matching of forest fire-fighting caravan was put forward.In order to meet the requirements of ploughing fire lane，the method of ANSYS finite element to surface optimization design and body optimization design of the ditching device was proposed.It laid the foundation for further research of special fire prevention opener.

Research Status and Trend of Soil Mechanical Resistance

Zhao Zhanjun, Han Changjie, Guo Hui, Yang Wanzhang

2014, 4(4): 10-13.

Abstract(756) [PDF 517KB](66)

Abstract:
With gradual reduction in the number of soil resources，status and function of soil is changing.It is particularly important to effective use of soil.Size of the soil mechanical resistance directly affects use of the effect of soil.Research status of soil mechanical resistance measurement methods were summaried.These measurement methods which including non-continuous measurement，continuous measurement method， telemetry and indirect assay were analyzed.Their strengths and weaknesses were pointed out.Factors affecting measurement accuracy were analyzed and measurement methods trends of soil mechanical resistance were put forward.

Building Model，Repairing and Maintaining about Gasoline Engine Based on Solidworks and 3DVIA Composer

Li Jun

2014, 4(4): 14-18.

Abstract(768) [PDF 2510KB](71)

Abstract:
Solidworks was adopted to design gasoline engine.Designed model was led to 3DVIA Composer by data joggle between Solidworks and 3DVIA Composer.Color，transparency，vein and luminance of single parts were set by the property setting function of 3DVIA Composer.Every parts were disassembled through the transform function of software，such as freedom of drag，translation and rotation.3D engine disassembly was made by setting the key frame animation.Repairing and maintaining matters in every disassembling link were analyzed.It provided the basis for user to repair and maintain gasoline engine.

Development Enlightenment of Xiliantang Agricultural Machinery Professional Cooperatives of Jishui Town in Lianjiang City，Guangdong Province

Wang Minjie

2014, 4(4): 19-22.

Abstract(772) [PDF 664KB](66)

Abstract:
Development process for Xiliantang Agricultural Machinery Professional Cooperation was analyzed.In view of difficulties and problems facing in development process of agricultural machinery cooperatives in Guangdong province，ways were proposed to realize healthy development of agricultural machinery professional cooperatives.

Extension Situation and Development Proposals of Mechanical Recovery Technology of Farmland Residual Film in Lanzhou City

Wei Wanfu, Shang Yuqin

2014, 4(4): 23-24.

Abstract(687) [PDF 337KB](77)

Abstract:
Widely used of film covering technology promotes rapid development of agricultural economy，but at the same time，a lot of residual film on phagocytic environment and land phenomenon is also very serious.Extension situation of mechanical recovery technology of farmland residual film in Lanzhou was analyzed.Reasonable measures and suggestions were put forward.Developing modern circular agriculture，promoting application of mechanical recovery technology of residual film，solving and reducing‘White Pollution’are very necessary.

Development Trend on Rape Production of Hilly Area in Sichuan Province

Liu Zhengming, Sui Shuntao, Mei Linsen

2014, 4(4): 25-27.

Abstract(643) [PDF 463KB](77)

Abstract:
Rape is an important oil crop in Sichuan province with traditional advantage.Current situation of rape production in hilly area of Sichuan province and the difficulty in the promotion of mechanized production were analyzed.Development trend of rape production in hilly area of Sichuan province was introduced，which produced sustained and healthy development basis to rape production.

Application Prospect about Technology of Ploughing Deep Tillage Straw to Field

Cheng Qidong

2014, 4(4): 28-30.

Abstract(777) [PDF 449KB](67)

Abstract:
Principle and function about technology of ploughing deep tillage straw to field was elaborated.Problems and difficulties of mechanization of straw to field in Wuxi city were pointed out.Application necessity and countermeasures about technology of ploughing deep tillage straw to field in Wuxi were put forward.

Investigation of Machinery and Equipment for Grain Production in Bazhou of Xinjiang

Mamu Tijiang·Abudu Rehema

2014, 4(4): 31-32.

Abstract(673) [PDF 297KB](72)

Abstract:
Through investigation on machinery and equipment for grain production in Bazhou of Xinjiang，existing machinery and equipment over age service were found.Investigation results showed that there were many problems，such as obsolete equipment aging，high tech equipment less，small update dynamics and not reasonable equipment.Improving food machinery scrapped update subsidy and developling all kinds of agricultural cooperative organizations would improve efficiency in the use of mechanization of grain production.

Hydraulic System and Troubleshooting of Mushen 4QZ-2200 Type Self-propelled Silage Harvester

Luo Jun

2014, 4(4): 33-35.

Abstract(645) [PDF 453KB](78)

Abstract:
Hydraulic system composition and working principle of Mushen 4QZ-2200 type self-propelled silage harvester were introduced.Matters needing attention and troubleshooting methods of hydraulic system were expounded.

Use and Maintenance of Flat Tea Frying Machine

Wang Xianbiao

2014, 4(4): 36-37.

Abstract(766) [PDF 314KB](66)

Abstract:
Structural characteristics，working principle，use points and maintenance of flat tea frying machine were discussed.It has significance to ensure safe operation of the machine.

Intelligent Agriculture Based on Agronomy and IOT

Jiang Yingxu, Hua Fangfang, Zheng Liangliang, Zhang Wei

2014, 4(4): 38-40.

Abstract(761) [PDF 676KB](77)

Abstract:
Agricultural IOT used in greenhouses control system achieved goals of increasing crop production，improving quality，regulating growth cycle and enhancing economic efficiency.Based on the IOT，combining with agronomic techniques and networking technologies to bring forward overall frame of smart agricultural system structure for the user′s real-time monitoring of farmland and providing technical information as the support for decision.Intelligent agricultural management was totally achieved，and it accorded with development of modern agriculture.

Design on Feed Liquid Components Added Control System

Wang Xiaoyang

2014, 4(4): 41-43.

Abstract(571) [PDF 779KB](72)

Abstract:
Theoretical basis and design thought of overall design scheme about feed liquid components added control system were introduced. Application of programmable controller（PLC），touch screen and weighing instrument in feed liquid components added system was discussed. Touch screen configuration module and software design of Siemens S7-200 programmable controller module were also introduced.

Design on Noodle Drying Control System

Lu Junsheng, Zhang Ye, Meng Hao, Xiao Yuqing

2014, 4(4): 44-47.

Abstract(705) [PDF 1288KB](62)

Abstract:
Environmental temperature and relative humidity control of noodle drying chamber is an important factor affecting quality of noodle drying，and an important part of noodle drying control system.Noodle drying control system which based on PLC，intelligent instruments fieldbus network communication with a variety of protocol was introduced.Practice showed that noodle drying control system had many advantages such as stable and reliable operation，flexible operation，and complete function.

Review on Lignin Degradation Enzyme

Yang Ye

2014, 4(4): 48-51.

Abstract(661) [PDF 535KB](66)

Abstract:
Lignin is biological polymer which is second only to cellulose content.It is present in the cell walls of higher plants.It is about 25% of woody plants，and play role of plant tissue reinforcement.In plant，tissue，lignin，cellulose and hemicellulose are in the form of a covalent bond joint，cellulose molecules is embedded in it to form a strong natural barrier.General microbes are difficult to enter the decomposition of cellulose.Therefore，degradation of lignin is one of the key point of effective utilization of cellulose.In the nature of carbon cycle，degradation of lignin and the use are the most critical link of speed limit.Progress on lignin degradation enzyme was reviewed，trying to provide some references for the biodegradation of lignin.

Determination of Sensitive Points During Construction Project Environmental Impact Assessment

Guo Zhimin, Chen Lei, Liu Rui, Fu Zhiqiang

2014, 4(4): 52-54.

Abstract(628) [PDF 400KB](64)

Abstract:
To determine sensitive points is substantial work during environmental impact assessment process and construction stage environmental management.This work can be beneficial for determining construction stage protective target，practicing environmental protective methods，and standardizing construction behavior.The work includes several stages，such as proposing determination foundation of sensitive points，analyzing partition of sensitive points，and discussing program and demand on how to determine sensitive points.

Standardization of Manure Compost Equipments and Their Performance Indices

Zhao Mingjie, Wu Desheng, Li Hui, Sun Changzheng, Liang Hao, Yan Fei

2014, 4(4): 55-58.

Abstract(757) [PDF 674KB](69)

Abstract:
According to development situation of manure compost treatment and utilization industry，and the lack of related equipment standards，suggestions were proposed to make standards for these equipments.Process technologies of manure compost treatment and producing organic fertilizer，and related facilities were introduced.Performance indices of equipment were analyzed.It was expected to be benefit to preparation of these equipments standards.

Research Progress of Material Utilization about Straw Fuel Ethanol Waste Residue

Li Daoyi, Yin Lingyu, Zhang Xueli

2014, 4(4): 59-61.

Abstract(824) [PDF 463KB](70)

Abstract:
In recent years，along with the rapid growth of global economy，and sharp rise in consumption of fossil resources such as oil and coal，fossil energy shortage crisis is imminent，the attention of renewable energy sources such as biomass can gradually into a hot spot，the research and development of cellulose fuel ethanol has attracted many attentions in world. Improving level of lignocellulose biomass to liquid fuel and economy，have become the urgent task facing the current. In support of country and scientific research personnel，with help of straw fuel ethanol technology in China has made outstanding achievements，in the collection，storage and shipment of straw，raw material pretreatment，enzymatic hydrolysis，pentose fermentation，key technologies has made breakthrough. But residue rich in lignin in the production process has not been further development and utilization. Therefore，development and utilization of residue rich in lignin could fundamentally improve economic benefit of straw fuel ethanol production process，and will be an energy saving，environmental protection and make full use of natural resources for integration of systems engineering.

Biogas Production Test by Fermentation of Proportional Mix about Straw Materials and Excrements

Wei Zongwang

2014, 4(4): 62-65.

Abstract(731) [PDF 611KB](77)

Abstract:
Using straw as main raw material for biogas fermentation could relieve problem of raw materials shortage for household biogas of Qin′an county.It is an important way for the comprehensive utilization of straw resources，and could solve rural energy problems.In order to explore regularity of biogas production by fermentation of proportional mix about straw materials and excrements，experimental study on single was done in Jianwan country.Through using method of sum up and comprehensive contrast of test data，best proportion of straw materials and excrements for mixed fermentation to produce biogas was grasped.It provided scientific basis for the development of biogas project in Qin′an county.

Present Situation and Treatment Methods for Agricultural Plastic Film Pollution of Mountain Area in South of Ningxia

Wang Li

2014, 4(4): 66-69.

Abstract(824) [PDF 678KB](66)

Abstract:
Southern Ningxia vigorously promoted the cultivation of plastic film mulching dryland farming technology，and it had achieved remarkable economic and social benefits.At present，agricultural plastic film residues were 21900 tons in Ningxia.‘White pollution’is becoming a serious problem.Government should set up a long-term mechanism，strengthen government supervision，strengthen processing enterprises，improve the recycling network，drive farmer participation，and gradually establish‘three guarantees’mechanism，that is propaganda and pick up rate，clean up the farmland mulching film，dot and recovery，convenient farmer to sell，enterprises and processing rate，enjoy policy support.The Ningxia Hui Autonomous Region people′s Government was in accordance with the‘three noes’，‘three double restraint’as the main basis for inspection and acceptance，and it would accelerate the pace of film pollution control in Ningxia.

Rural Biogas Promotion and Construction Experience of Pingdi Country in Pan County of Guizhou Province

Li Zhongshou

2014, 4(4): 70-71.

Abstract(620) [PDF 285KB](73)

Abstract:
Rural biogas promotion and construction has great significance both in policy and rural modernization.Rural biogas promotion and construction of Pingdi country in Pan county were guided by country′s rural policy.It adjusted measures to local conditions，promoted structural adjustment of rural energy，and cooperated with the new rural construction，household appliances to the countryside，coverage and other rural project.But there is shortage such as low scale，inadequate comprehensive utilization，etc.If construction of small and medium sized biogas system could be combined with small and medium-sized farms built in recent years，it would increase its scale and the use of powerful benefits.

Uncertainty Analysis of Fenazaquin in Tea by HPLC-MSMS Method

Du Ruyun

2014, 4(4): 72-75.

Abstract(690) [PDF 495KB](66)

Abstract:
To study the uncertainty of fenazaquin in tea，testing process was studied in order to determine the major source of uncertainty.Besides，each component of uncertainty was evaluated and synthesized.Results showed that standard addition recovery and standard working solution preparation uncertainty components were main causes of uncertainty.As the content of fenazaquin was 8.28 μgkg，the expanded uncertainty was 0.40 μgkg.Result of fenazaquin content could be expressed as follows：X=（8.28±0.40）μgkg，k=2，P=95%.

Working Performance Comparison on Two Kinds of Walnut Drying Equipment

Tian Xiang, Li Zhongxin, Yang Liling, Yan Shengkun, Shen Xiaohe, Wang Qinghui, Ban Ting, Wang Bing

2014, 4(4): 76-78.

Abstract(865) [PDF 524KB](60)

Abstract:
Through investigation and study of walnut drying equipment in domestic，which have the characteristic of large energy consumption，less uniformity and low quality，5 HH-3000 type and HG-120 type walnut fruit drying machine dryers were chosen for comparative study with drying equipment performance indicators.Results proved that drying performance of 5HH-3000 type was better than HG-120 type.It provided strong evidence for optimization improvement of drying equipment，and also provided a theoretical basis for choice of models and large-scale production.

Development of Small Short Duct Walnut Shell-kernel Separator

Zhu Zhanjiang, Liu Kui, Li Zhongxin, Abulizi·basiti, Liu Jia, Yang Zhongqiang, Cui Kuanbo, Maihemujiang

2014, 4(4): 79-81.

Abstract(718) [PDF 481KB](69)

Abstract:
At present walnut shelling in domestic mainly depends on manual，which has restricted development of walnut industry because of the low efficiency and high cost.Structure，process，working principle，characteristics and test case of small short duct walnut kernel separator were introduced，which was developed by project team.Walnut shelling，shell kernel grade separation and air separation could be done at the same time by this device，and good condition were created for realizing mechanization of walnut kernel separation processing.

Optimization of Enzymatic Extraction Gorgon Nut Protein Using Response Surface Methodology

Tan Wufeng, Du Bing, Xie Lanhua, Liang Zuanhao, Cai Xunkai, Chen Jianhang

2014, 4(4): 82-85.

Abstract(746) [PDF 591KB](67)

Abstract:
Composite-enzymolysis in preparing protein of gorgon nut was optimized with response surface method.Effects of factors including the solid to liquid ratio，enzymolysis temperature，enzymatic content，enzymolysis pH，enzymolysis time with the extraction rates of gorgon nut protein were explored by single-factor and response surface experiment.Results showed that enzymolysis pH was the most critical factor affecting the extraction rate of gorgon nut，followed by enzymatic content，and enzymolysis temperature exhibited less effect on extraction rate of gorgon nut protein.The optimal enzymolysis conditions were the ratio of solid to liquid was 1∶20（gmL），enzymolysis temperature 49 ℃，enzymolysis pH 5.0，enzymolysis time 2 h，enzymatic content 0.35% and the extraction rates of gorgon nut protein was up to 80.38%.

Determination of 3 Pesticides in Herbal Tea by Gas Chromatography

Weng Guifeng

2014, 4(4): 86-88.

Abstract(813) [PDF 432KB](72)

Abstract:
A gas chromatographic method for determination of BHC，DDT and dicofol in herbal tea was established.Petroleum ether was used as extract solvent，then samples were cleaned up by sulphuric acid.BHC，DDT and dicofol residue in samples separated by RTX-1 capillary column，EDC was used as detection.Results showed that a good linearity was obtained for BHC，DDT and dicofol with the relative coefficient larger than 0.998 3，the limit detection（LOD）of method was 0.001~0.002 μgmL，the percentage recovery from the samples was between 92.5%~110%.The method was handle easily and rapid，wide range of application，it could be used to determine BHC，DDT and dicofol in herbal tea.

Application Research Progress of Chitosan in Food Industry

Miao Lijun

2014, 4(4): 89-90.

Abstract(835) [PDF 641KB](76)

Abstract:
The mechanism and research results of three aspects in antibacterial，keeping fresh and fruit juice clarification of chitosan were mainly introduced to expect for application of chitosan in food industry and provide perspectives for further development.

Process Optimization of Pumpkin and Agaric No-sugar Ice Cream

Shen Jun

2014, 4(4): 91-92.

Abstract(693) [PDF 356KB](49)

Abstract:
With pumpkin and agaric as auxiliary materials，production of pumpkin agaric no-sugar ice cream from homogeneous method and aging effects on its quality was studied.The orthogonal experiment L9（33） method was used to optimize process parameters.Results showed that homogeneous pressure 17 MPa，aging temperature 4 ℃，aging time 10 h could get better ice cream melting resistance，and inflation rate was better，too.

Technology Optimization of Clarifying Citrus Juice Beverage

Huang Xiaozhen

2014, 4(4): 93-96.

Abstract(560) [PDF 603KB](59)

Abstract:
Clarifying technology of combination of pectinase treatment and microfiltration inorganic membranes in citrus juice was studied.Experimental results showed that pectin in citrus juice was basically removed by using pectinase，then the dealt juice was filtered through inorganic membrane，it was clarified and transparent and debittered appropriately，transmittance was high to 96.3%.Most of nutrient composition and aroma was saved，and without any turbidity and precipitation during three months of storage.Reasonable operating parameters of microfiltration process was also confirmed，operating pressure was 0.2 MPa，temperature was 20～25 ℃，and membrane flux was 19 L（h·m2）.

Determination of Metallic Element in Herb Tea by Inductively Coupled Plasma Mass Spectrometry

Ren Xiaomeng

2014, 4(4): 97-99.

Abstract(598) [PDF 454KB](58)

Abstract:
Inductively coupled plasma mass spectrometry（IC-MS）with dry ashing digestion was applied to determine arsenic，chromium，cadmium，lead，strontium，manganese，copper and zinc in Herb Tea.In addition，the recovery rate of standard addition was 90.3%～109.4％ and RSD was 1.38%～8.19％.It indicated that the method was simple，rapid，accurate which could meet demand for determining heavy metal elements in herb tea.

Slope Water Edge Effect in Loess Gully Area in Western Shanxi Province

Feng Huimin, Wang Dianlong, Hu Zhenhua

2014, 4(4): 100-102.

Abstract(625) [PDF 546KB](57)

Abstract:
Slope water edge effect in loess gully area in western Shanxi province was studied.The results as follows：first，the soil water content of slop farmland in 5 m edge space is higher than in 2 m edge space and the edge part，and the soil water content in 2 m edge space is similar with edge part.Second，the difference of soil water content between edge，middle and root part is not obvious in bench step land of 0～100 cm，but the difference is obvious in 100～200 cm，root water content than the middle part and the edge part respectively higher 18% and 68%.Third，25 cm edge space water content of scale pit in 0～100 cm layer is obviously higher than 2 cm edge space.This study could be served as guidance to ecological construction.

Land Use Strategy in Developed Coastal Areas under Background of Newly Land Use Planning Implementation Take Dasong New City in Ningbo for Example

Zhang Wenxuan, Zhang Lingli, Hao Jinmin, Zhu Chuanmin

2014, 4(4): 103-108.

Abstract(738) [PDF 1130KB](66)

Abstract:
The purpose was to put forward some land use strategies which was fit for development of coastal economic developed region by analyzing land use problems of this area.A case analysis method was adopted and Dasong new city in Ningbo was selected as the case area.By analyzing orientation of urban development of coastal economic developed area and finding restrictions and problems of land-use which was faced in development of new city with a background of new land use planning implementation，it was suggested that we should innovate land-use strategy，which was fit for Dasong new city′s development，from two aspect which was broadening sources of income and reducing expenditure.Through tapping the potential and remolding old building，it could increase 650 hectares land for construction.And by using the land in the hills or reclaiming land from sea，it could increase 860 hectares of land for construction.This construction land could ease contradiction of land use effectively.The research findings showed that the land-use strategy which insisted on digging the latent power in land-use and adjusts the land-use spatial distribution with its geographical advantages was very useful for coastal economic developed region.It could not only provide some advices for local government to make a new land use plan and control measures，but also provide feasible suggestions for land requirements of construction and development of cities.

Modeling and Simulation of Hydraulic System for Harvester Head′s Cutting Operation Based on AMEsim

Wang Dian, Liu Jinhao, Liao Xiaoming, Chen Zhejin, Fan Li, Sun Zhibo

2014, 4(4): 109-112.

Abstract(684) [PDF 751KB](60)

Abstract:
Hydraulically driven chain saw is the key execution unit for harvester head of wood harvester machine.It is used to harvest and saw logs，complete bucking operation of logging operation.In order to get the harvester head′s cutting operation performance parameters，harvester head′s cutting mechanism of the virtual prototype model was established.Cutting process was studied and analyzed.Hydraulic system of harvester head cutting operation simulation model was built based on AMESim software platform.Simulation results showed that parallel system had higher power utilization than series system.

Finite Element Analysis about Fork Structure of Self-propelled Sprayer Based on Creo

He Yu, Xie Shouyong, Han Shengping, Qi Yongnian

2014, 4(4): 113-115.

Abstract(728) [PDF 853KB](56)

Abstract:
According to working requirements of self-propelled sprayer，a kind of fork between tire and leg was designed to support the body of sprayer，and the model of fork was built based on Creo.Tires were required walk and rotate along the vertical axis.So the fork in addition to support whole body gravity，but also need to support torque.Its stress situation was more complex. In order to ensure normal work of the fork，finite element analysis using Simulate module was carried out based on Creo.Fork force was obtained from analysis result.

Structure Design on Fertilization System of Directional Fertilization Machine for Orchard

Su Zihao, Lan Feng, Li Ziming, Xie Shu, Li Qi

2014, 4(4): 116-119.

Abstract(739) [PDF 565KB](58)

Abstract:
In order to solve the problem on the lack of proper fertilization machine in large area of orchard in Jiangxi province，current situation of domestic orchard fertilization was analyzed.Fertilizer apparatus of directional fertilization machine for orchard was designed based on the complex terrain in Jiangxi province.According to fertilizer agronomy standard of modern orchard，structure scheme of fertilization system was put forward.Incomplete gear transmission mode was designed in order to adapt to the directional fertilization requirements.And calculation of fertilization part was made.Key structures such as mixing fertilizer device suitable for different quantity of fertilizer and terrain profile device to the south were designed.This machine could fertilize near by the boot of plant，could save fertilizer，promote fertilizer use efficiency，and adjust the fertilizer in wide-range that adapt to the different fertilizer rate.

Research and Application of Potted Tray Seedlings Automatic Transplanting Machine

Dong Wei, Zhou Zengchan, Bu Yonglong, Li Mingkun, Chen Lizhen, Li Baoan

2014, 4(4): 120-124.

Abstract(637) [PDF 3162KB](62)

Abstract:
Aiming at the problems of high cost，low efficiency and high labor intensity for artificial transplanting，a potted tray seedlings automatic transplanting machine was designed.This machine is mainly composed of transplanting mechanism，bad seedling identification system and control system.It adapted to factory plug seedling production process.This process that seedlings from dense plug transplanting to drain plug or nutritional bowl realized mechanical operation.This potted tray seedlings automatic transplanting machine improved working conditions and efficiency.

Movement Simulation of External Trough Wheel Seed Metering Device Based on Solidworks and 3DVIA Composer

Wang Xinwei, Chang Sheng, Bao Na, Jia Jingxia

2014, 4(4): 125-128.

Abstract(607) [PDF 1996KB](52)

Abstract:
Solidworks was adopted to design external trough wheel seed metering device.Three-dimensional model was lead to 3DVIA Composer by data joggle between Solidworks and 3DVIA Composer.It simulated the movement process and experiment of external trough wheel seed metering device by apply colors to model，assembly and movement simulation.Work situation could be known well and it could provide the basis for the planter in the future.

Modifications Design of High Clearance and Wide Track Tractor

Du Xuexiang

2014, 4(4): 129-134.

Abstract(644) [PDF 1601KB](45)

Abstract:
Taking Tieniu 47.8～69.8 kW tractor as research object，design principles of high clearance and wide track tractor were put forward according to Xinjiang which is the largest cotton producing areas of operation.Tread of front wheel and rear wheel，the minimum clearance from ground of front axle and rear axle of this series tractor were calculated.Carrying capacity of front axle and rear axle were checked.Results showed that this design was correct.This series tractor of high clearance and wide track could meet the operation requirements of cotton field.

Design of Combined Biogas Slurry Solid-liquid Separation Device

Zhang Xiaolong, Guan Zhengjun, Cao Liang, Jiang Yan

2014, 4(4): 135-136.

Abstract(636) [PDF 443KB](53)

Abstract:
Producing biological gas using livestock manure anaerobic fermentation has become an important way for large scale farms to solve environmental problems and obtain biological energy.Rational utilization of biogas slurry produced by anaerobic fermentation is one of the difficult problems in the face of biogas engineering.Starting from the implementation of reduction，resource to use biogas slurry and residue separation，a combined solid-liquid separation device suitable for biogas slurry and residue separation was designed.It provides reference for treatment of biogas slurry using engineering method.

Maize Seeds Coating Aided Process Using Machinery

Wu Tao, Guo Chengjian, Zhang Xiaoyi

2014, 4(4): 137-138.

Abstract(571) [PDF 319KB](54)

Abstract:
Experience of planning and designing maize seed choiceness equipment and coated packaging processing equipment for maize seed enterprises by Jiuquan Ok Seed Machinery Co.，Ltd. was introduced. Several kinds of maize seeds coating aided process using machinery were listed according to actual situation of maize seed selection process.

Welding Deformation Correction of Storage Tank Floor

Tian Hongwei

2014, 4(4): 139-140.

Abstract(599) [PDF 1030KB](47)

Abstract:
Control of welding deformation about large storage tank floor is the key link to ensure construction quality of storage tank.Welding is easy to produce deformation exceeds design requirements because of welding stress and weld shrinkage.Construction quality was ensured to meet acceptance standards through some effective corrective measures.

Teaching Reform of Synthetic Mechanic Design for Outsanding Engineers Educating and Training in Agricultural and Forestry Universities

Liao Yitao, Zong Wangyuan, Liao Qingxi

2014, 4(4): 141-145.

Abstract(797) [PDF 698KB](61)

Abstract:
Recently，mechanics practices of machinery engineering students are scarce in most agricultural and forestry universities，in which training contents are prefer to the course text rather than practical production.Thus，practical ability of mechanical design and drawing are degraded and failing gradually.To work around this omission and satisfy the requirements of educating and training outsanding engineers，a series of teaching reform of synthetic mechanic design was carried out.Firstly，main reform goal and connotation of the teaching reform were presentation.Then，synthetic practical training of mechanic design combined teaching with scientific research and production was implemented，which fully exert the advantages of scientific resources within engineering college of Huazhong Agricultural University.At the last，effect of the reformed training was evaluated and the improvement and optimization measure were put forword.Results in the study laid the foundation for further reforme of the synthetic practical training of mechanic design.

Discussion on Improvement about Practical Ability of Young Teachers in Engineering Colleges An Example of Zhengzhou Institute of Light Industry

Hu Jinqiang, Sun Hao, Jing Jianzhou, Sun Xincheng, Dong Caiwen, Jiang Chunpeng

2014, 4(4): 146-147.

Abstract(620) [PDF 358KB](55)

Abstract:
Present situation and existing problems of developing practice ability of young teachers in engineering colleges were analyzed.Combined practical ability training mode of young teachers in engineering colleges，methods of improving young teachers′ practical ability were studied，to provide important advice and reference for improving young teachers′ practice ability in engineering colleges.

Some Ideas on Improving Teaching Effect of‘Food Chemistry’in Tibet Colleges

Chi Fumin, Luo Zhang, Gu Xuedong, Yang Lin, Ma Changzhong

2014, 4(4): 148-150.

Abstract(658) [PDF 511KB](53)

Abstract:
‘Food Chemistry’course is an important specialized basic course for students of food specialty in Tibet colleges，it could be very helpful for the students to study follow-up professional courses by improving teaching effect of‘Food Chemistry’curriculum.Thus，problems on how to improve the teaching effect of‘Food Chemistry’course were analyzed，considering the learning characteristics of college students，also combining with writer′s experience on the construction of‘Food Chemistry’course.

Exploration and Practice of Classroom Teaching for Professional Courses in Universities

Liu Xuhong, Cai Peizhong, Liu Lifang

2014, 4(4): 151-152.

Abstract(618) [PDF 355KB](52)

Abstract:
In order to better cultivate electrical and mechanical professional talents with innovation spirit and innovation ability，teaching content，teaching process and teaching methods of professional courses in universities were discussed.Reform of improving the quality of classroom teaching was put forward and practiced.

Modern Communication Technology and Financial Education Reform

Shao Chenyang

2014, 4(4): 153-155.

Abstract(567) [PDF 453KB](52)

Abstract:
21st century is a century of modern communication technology and high development of informationization.Along with the computer and network technology and modern communication technology into the financial sector，financial information is necessarily direction of reforming and development of financial industry.Training financial informatization talents is the important task of current financial education.Problems of financial education were discussed，corresponding countermeasures were put forward.

Teaching Reform for College Landscape Architecture English

Zhang Qiaoming, Gong Minggui, Li Xinling

2014, 4(4): 156-157.

Abstract(539) [PDF 339KB](46)

Abstract:
Main problems existed in college landscape architecture English teaching were analyzed.Aiming at these problems，some measures，such as enriching teaching content，changing teaching method，improving quality of English teachers，were put forward to further improve English teaching system of landscape architecture.

Establishment of Rapid Propagation System for Platycodon grandiflorum

Zeng Sisi, Peng Bao, Liu Qingbo, Huang Hongmei

2014, 4(4): 158-161.

Abstract(443) [PDF 2229KB](60)

Abstract:
With Platycodon grandiflorum stem as explants，the regenerated plants were obtained by adventitious buds inducing and rooting.Callus induction and differentiation were studied using stems and leaves from aseptic seedlings as explants.Results showed that optimal medium for adventitious buds induction of stems was MS + 6-BA 1.0mgL + NAA 0.05mgL.The test-tube plantlet could root in the medium 12MS +IAA 1.0mgL+NAA 0.5mgL.Callus that were induced from two kinds of explants and inductivity of stem explants was the highest in medium MS + 2，4-D 1.0mgL+6-BA 0.2mgL.All kinds of explants from callus were differentiated.The rapid proliferation of Platycodon grandiflorum by tissue culture method could be established，which would provided effective ways for the breeding of excellent varieties and utilization of Platycodon grandiflorum.

Soil Moisture and Light Distribution of High Photosynthetic Efficiency Fallow Rotation Corn

Liu Yuanhe

2014, 4(4): 162-166.

Abstract(679) [PDF 809KB](54)

Abstract:
Through spring corn field experiment in Siping area，high photosynthetic efficiency fallow rotation corn compared with conventional homogeneous ridges was researched，influence of soil bulk density，maize root dry weight，soil moisture content，corn light transmittance and production was studied.Soil bulk density of high photosynthetic efficiency of 0 ~ 40 cm soil layer was significantly below compared with uniform ridge in the maize jointing stage.Soil bulk density of high photosynthetic efficiency of 0~10 cm and 10~20 cm soil layer was lower compared with uniform ridge by 6.98% and 10.01% in the mature period.Root dry weight of high photosynthetic efficiency in the spinning stage of corn，milk stage and mature stage was 19.04%，19.09% and 18.84%higher than uniform ridge.High photosynthetic efficiency average water content was 2.14% higher than uniform ridge in the corn whole growth period.Transmittance average of middle uniform ridge was lower than high photosynthetic efficiency.Transmittance average of at the bottom of the high photosynthetic efficiency on June 28，July 14 and August 4 was respectively 15.33%，10.67% and 7.00% higher than that of the uniform ridge，difference reached significant level.Yield production of high photosynthetic efficiency is higher than uniform ridge，and the trend was increasing year by year.

Investigation of Weed Species in Dry Land and Chemical Control Countermeasures in Pan County of Guizhou Province

Gao Anhui, Zhang Jiayu, Chen Ronggui

2014, 4(4): 167-168.

Abstract(539) [PDF 317KB](51)

Abstract:
Through summarizing investigation，prediction，prevention and control experience of crop disease，insect，grass and rat of Pan county，it was found that weed hazard degree for crop was not less than diseases and insect pests.Weed in dry land was especially serious harm.Grain yield loss was 10%~30%，which was caused by harm of weed in dry land.It caused great loss to agricultural production in Pan county.In order to achieve better weed control effect，inhibitory effect of herbicides on weed in dry land was tested.High efficacy，low toxicity and low residue herbicide to control dry land weed for Pan county was selected.Results showed that，effect of 50% dry grass net was the best，followed by 41% glyphosate.

Framework of Family Farm System with Chinese Characteristics From Thinking about Survey of‘10 Counties and 100 Villages and 1 000 Farmers’in Hu′nan Province

Gao Zhiqiang

2014, 4(4): 169-172.

Abstract(454) [PDF 639KB](49)

Abstract:
Contract responsibility system has made great historic contribution in the history of China′s agricultural development.With the development of economy and society，family farm productivity system which adapt to productive present situation will become development direction of rural economic system reform.Building a family farm system with Chinese characteristics must have scientific institutions and mechanisms orientation，subject characteristics definition and functional characteristics definition，and also establish and support public policy support system，agricultural science and technology service system and common service platform.

Effect Evaluation of ‘The Project on Science Popularization Benefiting Peasants and Prospering the Rural’

Zuo Qingfu, Li Hua, Wang Younian, Chen Jingyan, Yan Renhao, Sun Zhe

2014, 4(4): 173-177.

Abstract(639) [PDF 689KB](59)

Abstract:
On the basis of evaluation on effect of‘The Project on Science Popularization Benefiting Peasants and Prospering the Rural’，AHP was used to establish index system.Using evaluation index system，2013 data of the plan was analyzed.Finally，effect of counties of Beijing was reached.

Potato Production Contrast between China and Developed Country

Yang Xiaogang, Wang Yanhong, Wei Yang, Wei Qiang

2014, 4(4): 178-180.

Abstract(670) [PDF 441KB](53)

Abstract:
Potato production between China and developed country was compared and analyzed.Difference between them was found.Corresponding solution was put forward in order to improve potato production levels and planting benefit continuously，promote healthy and rapid development for potato industry of Chinese.

Challenges and Countermeasures of Industrial Development of Ruili Key Development Experimental Zone in Yunnan Province

Lu Jiangyong

2014, 4(4): 181-185.

Abstract(718) [PDF 815KB](66)

Abstract:
Ruili is China′s important portal open to south Asia and southeast Asia，which borders with Myanmar.It is rich in natural resources，and less developed in economy.Since 2012，the letter that the general office of the State Council agreed implantation of key experiment zones of development and openness in Dongxing of Guangxi，Ruili of Yunnan and Manzhouli of Inner Mongolia has strengthened strategical statue to build Ruili to key experiment zone of development and openness.According to relevant theories of regional development，through description of development and opening of Ruili experimentation area construction process，from analysis on challenge of the development process of opening up，some corresponding countermeasures and suggestions were put forward to promote development to enhance faster and better economic development and opening up of Ruili experimentation area.It believed that in order to promote development and opening up and rapid development of Ruili experimentation area construction，we should strengthen communication and cooperation with neighboring countries，promote financial reform，to implement sustainable development strategy planning，increase investment in science and technology，and set up the human capital system.

On-farm Grading of Wild Apricot Pits with Pedal Operated Grader and Process Optimization Using Response Surface Methodology（Extracts）

A.E.Kate, U.C.Lohani, N.C.Shahi, A.Sarkar, J.P.Pandey

2014, 4(4): 186-188.

Abstract(676) [PDF 394KB](53)

Abstract:
Grading is the most preliminary unit operation of post harvest processing and utilization of wild apricot pits.Experiments were designed using response surface methodology where experiments were conducted on pedal operated wild apricot pit grader for optimizing the machine parameters and grading（size basis）operation.Effect of the three independent variables（pedal speed，feed rate and moisture content）of three level each（60，70，80 rmin speed，275，300，375 kgh feed rate and 10.5%，12.5%，14.5%（w.b.）moisture content，respectively）were studied on the grading efficiency（%）and grader capacity（kgh）.Experimental data were analyzed for getting the optimum solutions of the independent variables considered in the study.Full second order model was developed for predicting responses（grading efficiency and grader capacity）and to study the effect of individual parameters and their interactions on the responses.Experimental study revealed that grading efficiency and grader capacity were observed to be in the range of 75.9%～82.4%，and 270～325 kgh，respectively.To be the best performance of the grader for getting maximum grading efficiency and grader capacity，the optimized machine parameters were found to be 75 rmin pedal speed，325 kgh feed rate and 14.5%（w.b.）moisture content of pits.

5600 Series New Tractors of MF Company

Wu Qingfen

2014, 4(4): 189-191.

Abstract(471) [PDF 801KB](58)

Abstract:
Technical performance and structure of major components of 5600 series new tractors of MF Company were described briefly.It provides a technical information reference for China′s manufacturing enterprises and research departments to further research and development of tractor industry.

2014 Vol. 4, No. 4

Online Office

Download CenterMore+