Investigation And Measurement Of Optimum Planting Scale Of Different Grain Crop Plots

However,the high output,high consumption,high cost and high pollution of grain production in Jilin Province severely restrict the competition ability of grain production in Jilin Province.It is an effective way to improve the competitive ability of grain production in Jilin Province by using high resource efficiency and reducing the cost of grain production.According to the theory of scale economy and the theory of scale economy of agriculture,this paper is based on the survey of planting scale of maize,rice and soybean in nine cities of east and west of Jilin Province.To measure and analyze the scale efficiency of these three kinds of grain crops,objectively evaluate the sustainable development of maize,rice and soybean planting in Jilin Province,and improve the proportion of planting input for grain crops in various regions.The realization of green planting provides reliable,objective,scientific and beneficial basis.Firstly,this paper analyzes the planting scale of grain crops in Jilin Province in 2015.Factors limiting the scale of plot planting basic overview.Secondly,this paper studies the scale efficiency changes of input factors and outputs of Jilin cities in recent ten years from 2005 to 2015 by using Malmquist index and model respectively.Using 294 sample data obtained from field investigation,the scale efficiency of different grain crops is measured from the level of farmers,and the optimal planting scale of land plots is determined respectively.Finally.According to the calculation results of the model and the problems found in the field investigation,some suggestions are put forward to promote the plot scale planting in Jilin Province.Based on the above studies,this paper draws the following conclusions: 1)Pass through the analysis of the scale efficiency of planting in the past ten years,we can understand that the technical efficiency of grain planting in Jilin Province is greater.And promoted the province grain production to increase continuously,the new agricultural management main form appears,promoted the Jilin Province land plot scale conformity planting.It has promoted the process of land circulation in the whole province,but the factors affecting the scale of land use still exist,including the slow process of land transfer,the low level of specialization of production machinery and the lack of guidance from relevant departments.2)Taking corn,rice and soybean as the main research objects of grain crops,it is concluded that the optimum plot planting scale of maize is 10-20 hectares,and that of rice is 12-15 hectares.Soybean is 4-4.5 hectares.3)In view of the factors limiting the scale of land plots,the following countermeasures and suggestions are put forward: to promote the process of land circulation in an all-round way,to improve the level of production machinery and rural infrastructure,and to do a good job of technical guidance by relevant departments.