农业工程

Advance on Measurement of Soil Mechanical Resistance

Feng Jingxiang, Zhao Xin, Ma Jianjun

2013, 3(2): 1-4.

Abstract(1275) [PDF 1482KB](6)

Abstract:
Measurement of soil mechanical resistance is needed for the implementation of precision agriculture. Four main methods of measurement of soil mechanical resistance were provided，in addition，their advantages，disadvantages and research progress were introduced.

Calculation Methods of Integrated Mechanization Level of Crop Cultivation

Yan Baosheng

2013, 3(2): 5-7.

Abstract(1203) [PDF 1220KB](8)

Abstract:
Two calculation methods of integrated mechanization level of crop cultivation were contrasted and analyzed.The accurate calculation method which reflected a region agricultural mechanization degree was cleared.These consequences provided a basis to measure agricultural mechanization degree of the area and an important reference for government departments to formulate development goals and policies.

Review of Grape Vine Burying Machine

You Jun, Guo Hui, Hu Jie, Yang Wanzhang

2013, 3(2): 8-10.

Abstract(1363) [PDF 1054KB](11)

Abstract:
Grape is one of important economic fruits in our country.Demand for grape is increasing.Due to the unique climate conditions and geographical environment of China，if grape vines have not been buried in annual winter，they would be frostbit and air-dried.Grape vines have to be buried in soil every winter.This process is called vine burying. However，grape vine burying in winter is not only labor-intensive，requiring high job quality，and also seasonal，consuming both human and material.Development of grape vine burying machine is imminent.Research status of grape vine burying machine was reviewed.Main models of grape vine burying machine and their advantages and disadvantages were introduced.Factors influencing grape vine burying were analyzed.Development trend of grape vine burying machine was discussed.

Field Testing of Corn Mechanized Conservation Tillage with Wide-narrow Row Alternative Fallow

Liu Yuanhe

2013, 3(2): 11-13.

Abstract(1004) [PDF 1208KB](11)

Abstract:
Corn mechanized conservation tillage with wide-narrow row alternative fallow is different from conventional tillage mode with uniform ridge.Ridge distance is changed from average 60 cm to narrow seed line of 40 cm and wide gap of 80 cm.Field testing proved that new tillage mode had advantages in many respects，such as，corn yield，distribution of root，transmittance of colony，physical and chemical properties of soil.

Status Quo and Countermeasures of Field Operation Quality of Agricultural Machinery in Yili State

Yin Jianjiang, Wu Xiaoli, Li Wenxiu

2013, 3(2): 14-15.

Abstract(1050) [PDF 1134KB](6)

Abstract:
Effectiveness，experience and problems existed in quality year construction activities of agricultural machinery field operation quality in Yili state of Xinjiang were analyzed.In order to promote quality improvement in agricultural machinery field operation，a series of measures were put forward，such as strengthening construction of demonstration area，increasing renewal efforts of agricultural machinery，encouraging land ridge breaking integration and circulation，implementing agricultural mechanization standard work，and expanding agricultural machinery cooperatives.

Technology of Subsoiling and Rollover Tillage in Hilly Upland Area

Lu Xiaoling, Wu Guoming

2013, 3(2): 16-17.

Abstract(1221) [PDF 673KB](5)

Abstract:
Technology of subsoiling，water storage and rollover tillage could significantly improve grain yield，reduce cost of agricultural production，improve ecological environment，reduce water and soil erosion，and improve soil fertility and drought resistance.Therefore，this technology was more suitable for hilly upland farming.

Countermeasures for Promoting Rapid Development of Agricultural Mechanization in Chengde County

Dai Wei

2013, 3(2): 18-19.

Abstract(1109) [PDF 617KB](6)

Abstract:
Status quo of agriculture and agricultural mechanization of Chengde county in Hebei province was analyzed.Restriction factors of agricultural development were pointed out.Countermeasures for promoting rapid development of agricultural mechanization of Chengde county were put forward.

Development of Science and Technology about Agricultural Mechanization of Benxi County in Liaoning Province

Meng Xianxu, Yang Huafeng

2013, 3(2): 20-21.

Abstract(1019) [PDF 650KB](5)

Abstract:
Current situation of science and technology about agricultural mechanization of Benxi county in Liaoning province was analyzed.Main problems，relevant suggestions and countermeasures for development of science and technology about agricultural mechanization were put forward.

Design of Intelligent Management System of Facility Agriculture Based on Internet of Things Technology

Xuan Chuanzhong, Wu Pei, Ma Yanhua, Wang Yunli, Zhao Yudong

2013, 3(2): 22-26.

Abstract(1124) [PDF 1885KB](13)

Abstract:
Taking greenhouse for research subject，environmental information such as air temperature，air humidity，soil moisture，soil temperature，CO2 concentration，light intensity and video images could be real-time acquired by internet of things technology.Then，the information was transferred to the intelligent management system of the host computer with the WSN and GPRS network in order to realize the remote automatic control of equipments such as wet curtain，water irrigation，internal and external shading，roof window，light supplement and so on.The system could provide the most suitable environment for crop growth in greenhouse，enhance intensive and intelligent management，reduce labor intensity and production costs，decrease occurrence of disease，and enhance quality of agricultural products and economic benefits.

Thinking for Promoting Integration of Agricultural Mechanization and Informatization in Wuwei City

Han Tianpan, Xu Kuishan

2013, 3(2): 27-28.

Abstract(1035) [PDF 690KB](6)

Abstract:
Factors of restricting and hindering integration of agricultural mechanization and informatization in Wuwei city were analyzed.Suggestions and schemes of promoting integration of agricultural mechanization and informatization in Wuwei city were proposed.It provided beneficial reference for improving development of agricultural mechanization and informatization in Wuwei city.

Experimental Research of Corollary Equipment for Facility Agriculture

Wang Shuhong

2013, 3(2): 29-33.

Abstract(1011) [PDF 1725KB](6)

Abstract:
Level of agricultural mechanization is low at present in China，and it is not able to meet the demand of facility agriculture development.Application of new facility technology would speed up the popularization and application of high-end intensive equipment.Level of facility agriculture development would be increased.Test site is Boruixingze Facility Agriculture Technology Exploitation Co.，LTD.. By using the plant acoustic fuelling meter test， greenhouse electric mist prevention to promote bud technology experiment and soil continuous cropping obstacle processing technology，effective suggestion was given.

Processing Base Construction of Small Biomass Energy Block（Straw）

Liu Ping, He Gang, Zhai Gaixia

2013, 3(2): 34-35.

Abstract(1434) [PDF 932KB](4)

Abstract:
With development and utilization of crops straw，especially rapid development of biomass power generation，demand for biomass processing equipment is very urgent.At present，biomass energy power plants in domestic have imported foreign expensive equipments. Thought on the construction of small biomass energy block was proposed.And several kinds of devices were recommended.

Two Technical Measures for Improving Quality and Yield of Greenhouse Vegetables

Chai Li

2013, 3(2): 36-37.

Abstract(1050) [PDF 594KB](9)

Abstract:
Technology principle for using CO2 to increase vegetable production and two CO2 production methods were introduced. Relevant matters needing attention were pointed out particularly to be referenced by practitioners.

Status Quo and Proposal for Comprehensive Utilization Technology of Crop Straw

Yang Zhanhong, Shi Huiye

2013, 3(2): 38-39.

Abstract(1274) [PDF 648KB](4)

Abstract:
Crop straw is an agricultural by-product.Effective utilization of straw returning soil technology can not only improve soil organic matter content and increase fertilizer source，but also protect ecological environment，avoid waste of resources.Some feasible countermeasures for comprehensively using crop straw，reducing cost，increasing efficiency，and protecting environment were put forward.It has great significance on agriculture efficiency and farmers′ income.

Status Quo and Development Trend of China′s Cold Chain Transportation Equipments

Wang Xiaoguang

2013, 3(2): 40-42.

Abstract(1018) [PDF 1167KB](5)

Abstract:
Status quo of cold chain transport equipments and comparison with foreign countries were introduced.Main problems of cold chain transport equipments were analyzed preliminarily.Development trend of cold chain transportation equipments was put forward.

Possible Diseases-causing Factors from Foodborne Resources and Primary Cloudy Database of Nutritional Molecules

Li Meiling, Zhang Jingkai, Zhao Yi, Li Zhenjing, Luo Cheng

2013, 3(2): 43-45.

Abstract(1143) [PDF 1422KB](7)

Abstract:
Possible diseases-causing factors from foodborne resources including microbes pathogens，food allergy，food additives，pesticides residues，cultivating method of agriculture and antibiotics from meats were introduced.A primary cloudy database of nutritional molecules was also built to further explore the possibility to detect food safety with smart phones or other terminals.

Interception Effect on Engineering Measures for N and P of Small Watershed of Three Gorges Area

Li Xiaoran, Han Xiaofei, Gao Ming, Xie Deti, Ji Yiqun

2013, 3(2): 46-49.

Abstract(1295) [PDF 1405KB](4)

Abstract:
For the study of comprehensive control of engineering measures to the agricultural non-point source pollution of small watershed，engineering measures in the small watershed of Three Gorges area were carried out to study the interception effect for nitrogen and phosphorus.The results showed that engineering measures could intercept loss of nitrogen and phosphorus.Engineering measures on the closing stock of nitrogen run off intensity was 3.43 kghm2，the closing stock of phosphorus run off intensity was 0.098 kghm2，and engineering measures on the closing stock of nitrogen sediment intensity was 6.73 ghm2，the closing stock of phosphorus sediment intensity was 1.24 ghm2，which was better on the role of nitrogen sequestration than phosphorus.The results provided theoretical basis for management of agricultural non-point source pollution form engineering measures in Three Gorges area.

Application of Ordinary Kriging Interpolation for Calculating Earthwork in Land Consolidation Based on ArcGIS

Liu Jinzhao, Ma Jie

2013, 3(2): 50-55.

Abstract(1241) [PDF 2082KB](5)

Abstract:
To improve the calculation method of earthwork，Chunqiu，Linquan，Dawan villages of Zhuxi Town in Kai County in Chongqing were studied.Distribution and trend of elevation data were analyzed by Geostatistical module of ArcGIS software.Errors were predicted and best model was chosen by Spherical，Circular，Exponential and Gaussian models of Ordinary Kriging to calculate the earthwork of field.The results showed that in the 1st typical Area involving with 44 pieces of land and area of 29.7326 hm2，ME was-0.0178，RMSSE was 0.969 9，ASE was 2.039，RMSE was 2.374 5，and excavation was 49 959.1 m3；in the 2nd typical Area involving with 20 pieces of land and area of 22.904 9 hm2，ME was-0.004，RMSSE was 1.019，ASE was 1.447，RMSE was 1.531，and excavation was 32 935.0 m3.In conclusion，gaussian model fits best for such kind of calculation.

Internal Flow in Special Centrifugal Fan Based on CFD

Zhu Chengyun, Zhou Hongping, Ru Yu, Jia Zhicheng

2013, 3(2): 56-60.

Abstract(1145) [PDF 2272KB](5)

Abstract:
FLUENT software of CFD technology was utilized to establish a dedicated fan model of 6HWF-20 high-range sprayer-duster and simulate internal flow field.The fan flow field velocity distribution and pressure distribution were obtained during the rotational velocity of 2 372 rmin after convergence of calculation.Internal flow field of fan was improved by changing the optimization of wind turbine blade inlet installation angle and volute tongue shape and size.The mean velocity of the fan outlet were obtainedand under 6 velocity，which was verified by tests.The results showed that the simulation results agreed well with the experimental results.It could be concluded that established simulated mechod based on the FLUENT software indicated fan model and the simulation method were feasible.It has important significance to improve the internal flow field of wind machine.The improvement of fan outlet velocity wuld increase the implementation of high-range spraying and dusting function using CFD technology.

Design of Key Components of Whole-feed Corn Combine Harvester

Liu Yao, Zhang Yongjian, Hao Haiqing, Guo Yongjie

2013, 3(2): 61-64.

Abstract(1031) [PDF 1858KB](8)

Abstract:
Corn growing is large scale in China and its regional distribution is wide.Nowadays，harvest rate of maize machinery has been increased.Corn snapping bars harvesting has become a transitional harvesting method.Seed harvesting will be the growing trend for maize harvesting.Maize seed harvesting are divided into two methods.One is corn snapping bars and threshing harvesting.It has become a mature maize harvesting technology in European and American countries.The other is whole-feed threshing harvesting.It is same to other grain harvesting machinery.Stems will be crushed in threshing chamber and removed out of harvester.Ears will be threshed and the seeds resulted will be fed into grain tank.A key description was given that research and design results of some key components in process of whole-feed corn seed harvesting based on modifying and replacing of partial working elements of wheat harvesters.

Design of Transmission Synchronization System for N300-B15D Series Vehicle

Gan Lixu, Zou Linfeng

2013, 3(2): 65-67.

Abstract(1307) [PDF 781KB](5)

Abstract:
N300-B15D series vehicle was designed for passenger and commercial vehicle，which was designed by SGMW.The mini-passage vehicle with B15D rear wheel drive engine and manual transmission，transmission was manufactured by SAGW-Liuzhou. Synchronizing system designing was introduced.

Research and Development about Special Diesel Engine Generator of Combine Harvester

Shu Weibing, Sun Rugang, Zhang Aizhong

2013, 3(2): 68-69.

Abstract(1101) [PDF 753KB](6)

Abstract:
High failure rate of diesel engine generator for combine harvester was analyzed.Special generator with new structure was designed.Actual use proved that the failure rate of new structure generator decreased obviously.

Teaching Method of‘Motor & Driver’Subject

Cai Peizhong, Liu Xuhong, Liu Chao

2013, 3(2): 70-71.

Abstract(600) [PDF 852KB](7)

Abstract:
Teaching method of motor & driver subject，especially motor mechanical properties equation was researched，and it showed that this equation was unsuitable to the Tst sometimes.

Micropropagation Technology of Anoectochilus roxburghii in Fujian Province

He Bizhu, He Guanrong, Huang Mingxing, Zou Shuangquan

2013, 3(2): 72-76.

Abstract(773) [PDF 1984KB](4)

Abstract:
Taking aseptic induced buds of Anoectochilus roxburghii stem as experimental material，callus and protocorm were induced form shoot tip and stem on germinal bud，respectively.Aseptic cultivate system Anoectochilus roxburghii of was established.And optimum medium for micropropagation was found.Results showed that optimum medium for bud germinate of Anoectochilus roxburghii stem was MS+BA 1.5 mgL+banana juice 100 gL+NAA 0.5 mgL.Optimum medium for protocorm induction of shoot tip was MS+BA 2.0 mgL+NAA 0.3 mgL+HyponcexⅠ3.0 gL.Optimum medium for subculture micropropagation of protocorm was 12MS+BA 2.0 mgL+NAA 0.3 mgL+banana juice 100 gL+AC 0.2%.Optimum medium for cluster buds induction from callus was 12MS+BA 2.0 mgL+NAA 0.2 mgL+banana juice 100 gL.Optimum medium for subculture micropropagation of cluster buds was 12MS+BA 3.0 mgL+NAA 0.5 mgL+KT 1.0 mgL+banana juice 100 gL+AC 0.2%.Optimum medium for rooting of plantlets was 12MS+IBA 1.0 mgL+NAA 0.3 mgL+AC 0.2%.

Tissue Culture of Cyclamen persicum Mill.

Zhang Ruizi

2013, 3(2): 77-80.

Abstract(683) [PDF 1358KB](4)

Abstract:
With leaf，petiole and stem segments of cyclamen as explants，using different types of disinfectants and disinfection time，disinfection of cyclamen explant was studied.Induction effect of cyclamen callus was studied respectively from explant type，basic culture medium type，and hormone allocated proportion between 6-BA and NAA.Best conditions of cyclamen cluster bud proliferation were chose by multi factor orthogonal test.Role of carbon on cyclamen rooting was researched.Results showed that disinfection effect of sodium hypochlorite was better than mercuric chloride.The best disinfection time was 10 min for explant soaked with 2% sodium hypochlorite.Leaf as explant was easier to induce callus.Basic culture medium for callus induction was MS.Medium for callus induction and bud differentiation was MS+6-BA1.0 mgL+NAA0.2 mgL.Medium for shoot proliferation was 12 MS+6-BA 1.0 mgL+NAA 0.2 mgL.Medium for rooting was 12 MS+NAA0.2 mgL+3% sucrose+AGAR 7 gL+activated carbon 0.5 gL.

Breeding Report of New Spring Wheat Xinchun 6

Duan Lihui

2013, 3(2): 81-82.

Abstract(583) [PDF 622KB](4)

Abstract:
Xinchun 6 is hybrid bred by Zhong 7903 and improved Xinchun 2 in insititue of nuclear & biotechnology，Xinjiang academy of agricultural sciences. It was named after examination and approval by Xinjiang crop variety approval committee in 1993.Xinchun 6 had been chosen through individual plant for 3 years and bred through strain for 2 years in 149 Regiment.It was demonstrated in fine breed company in 1997.Many advantages，such as high yield，stable yield，lodging resistance，disease resistance and strong suitability，were showed. It was identified as key variety.

Promotion of Rural Economic Comprehensive Reform

Huang Aidong

2013, 3(2): 83-87.

Abstract(802) [PDF 2668KB](4)

Abstract:
Great achievements have been obtained in more than 30 years reform of rural economy in China.At the same time，serious challenges have been also faced. Development of rural economy is not in harmony with the pace of industrialization and urbanization.Differences between town and country are relatively wide.Power of industrialization and urbanization is weakened.Rural economic comprehensive supplementary reform must be promoted.Systems and mechanisms should be innovated.Policy measures should be strengthened.Based on perfecting market economy system，a new urban and rural relationship of workers and peasants should be focused to build.Coordinated development of urban and rural economic and social will be realized.

Empirical Analysis about Influence Factors of Rice Farmers′ Grain Selling Behavior in Jilin Province

Lian Chao, Jiang Huiming

2013, 3(2): 88-90.

Abstract(654) [PDF 1056KB](4)

Abstract:
Rice farmers′ grain selling behavior plays an important role in supply chain of rice processing industry.Based on Logistic model analysis of rice farmers′ grain selling behavior，it was observed that factors，such as scale of planting rice，way of transporting rice，storage equipment and proportion of grain income in net income of farmers，had important effects on rice farmers′ grain selling behavior.Reasonable suggestions to optimize rice farmers′ grain selling behavior were presented.

Problems and Countermeasures of Tourism Development in Scenic Area

Peng Hongli

2013, 3(2): 91-92.

Abstract(667) [PDF 733KB](4)

Abstract:
In recent years，tourism is fast developing in our country.As unreasonable development of tourism resources，environment destruction and pollution happened in many areas.Problems of tourism development of scenic spots were tried to been analyzed.Countermeasures for maintaining the sustainable development of scenic spots were put forward.

Internationalization of Chinese Agricultural Machinery

Zhang Kexing, Li jiandong, Li Xiaoguang, Zhao Yongliang, Wang Aihua

2013, 3(2): 93-95.

Abstract(651) [PDF 1232KB](6)

Abstract:
Economic globalization impels each member of world trade organization to actively attend process of economic globalization.All members promote its agricultural steady development through agricultural mechanization.Along with officially joining the world trade organization，oversea machinery quickly entered Chinese agricultural machinery market.And there are unfavorable factors of Chinese agricultural machinery′s performance，quality and convenience.Development of agricultural machinery production and trade was affected in different levels.

Practices and Thoughts about Management of Agricultural Scientific Research FilesA case of Management of Agricultural Scientific Research Files in Chongqing Three Gorges Academy of Agricultural Sciences

Huo Shiping, Liao Shumei, Liu Wenhui, Tao Xiaojie

2013, 3(2): 96-99.

Abstract(635) [PDF 1592KB](6)

Abstract:
Practice，acquired experiences and existed problems in management of scientific research project files were introduced combining with the characteristics of its own technology work in Chongqing Three Gorges Academy of Agricultural Sciences.Work thoughts about management of scientific research project files，such as strengthening leadership to raising understanding，intensifying systems or ways for the duties，laying rules to unify model of file places，putting into funds vigorously to push modernized management of scientific research project files，and strengthening study to increase the ability on management of scientific research project files were suggested.

Analysis of Machine-harvested Cotton Technology in Wusu City

Wang Keping, Li Xiaoli

2013, 3(2): 100-101.

Abstract(603) [PDF 598KB](5)

Abstract:
Cotton cultivation history is more than 40 years in Wusu city.Main harvest method is manual picking.Labor intensity is big，and cost is high.Objective factors of popularization and development of machine-harvested cotton technology，social benefits，ratio of performance to price of cotton picker，advanced nature and reliability of machine-harvested cotton technology，and reasons for restricting farmers to use machine-harvested cotton technology were analyzed.Vast popularization prospect of machine-harvested cotton technology in Wusu city was illustrated.

Investigations and Thoughts of Agricultural Machinery Professional Cooperatives in Yingquan District，Fuyang City

Luo Huatao

2013, 3(2): 102-103.

Abstract(805) [PDF 1051KB](4)

Abstract:
Since‘Farmer Cooperatives Law’was promulgated，agricultural machinery professional cooperatives in Yingquan district，Fuyang city，Anhui province have developed continuously.In order to strive to promote farmers′ income，and accelerate process of agricultural industrialization，taking agricultural management system and mechanism innovation as power，agricultural machinery professional cooperatives played an important role in agricultural production. But there were some problems need to research and think in development process of agricultural machinery professional cooperatives.

Comparison of Artificial Neural Network Models and Regression Model for Prediction of Evaporation for Malwa Region of Madhya Pradesh in India（Extracts）

Ajai Singh, Jain V K, Jayanta Dutta

2013, 3(2): 104-106.

Abstract(853) [PDF 1444KB](4)

Abstract:
Estimation of evaporation，a major component of the hydrologic cycle，is essential for any efficient management of water resources and irrigation water demand.In this paper，an attempt has been made to study the simulation of weekly evaporation by using multiple linear regression model，multilayer perceptron（MLP）and an artificial neural network（ANN）model for Malwa regions of Madhya Pradesh in India.The four combination of different weather variables were used to train the neural network model.The multiple linear regression model includes only the maximum temperature and relative humidity as input but the simulation result was not satisfactory.The MLP model performed quite well for the data set comprising minimum and maximum temperature，wind speed and relative humidity during training as well as validation periods.The MLP model could be employed to simulate weekly open pan evaporation，estimate missing data and as an alternative model to check the observed evaporation data.Inclusion of rainfall data with meteorological variables has not improved the performance of the model.

New C Series Combine Harvester of Fendt Company

Wu Qingfen

2013, 3(2): 107-111.

Abstract(694) [PDF 2157KB](4)

Abstract:
Structural characteristics and technical performances of major components of C series new combine harvesters of Fendt Company were described briefly.It provides a reference for China′s agricultural machinery industry research and development of new combine harvester products.

Chang Rui

2013, 3(2): 112-112.

Abstract(713) [PDF 428KB](4)

Abstract:

2013 Vol. 3, No. 2

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