The Research Of Grassland Farming System’s Planting Pattern On "Input And Output"

Grassland farning system is a planting pattern which take full advantage of farm resources and improve cropping index. Under the background of actively adjust the agricultural structure in our country, the research of grassland farming system on "input-output" has an important significance for agricultural extension work. Prior research to the grassland farming system mainly concentrated in the history and development, as well as the analysis of grassland farming system’s necessity and feasibility with lawn grass farning agriculture theoretical, but there are few research for the "input-output" of it. In this paper, we use the short-term production in economics theory as the research model, and use the law of marginal gradual income decrease at first, combined with traditional grain crops monoculture and grassland farming system these two kinds of planting patterns for detailed comparison and analysis on productions. Secondly, we use Leontief inverse matrix combined with "input - output" table, combined with these two kinds of planting patterns for detailed comparison and analysis on energy. The final analysis conclusion:grassland fanning system can improve the land utilization, enriching the soil fertility, significantly higher in grain crop yield of harvesting grass products at the same time. Grassland farming system can more effective use of natural resources, energy ratio in the process of planting monoculture model obvious advantages compared with traditional food crops. Therefore, the farmers planting patterns of Grassland farming system to increase production output and both have a substantial impact to increase energy output. The main research contents and conclusions of this paper are as follows:1. Relative to the traditional grain crops monoculture model, grassland farming system has obvious advantages. It can change the traditional direction of variable elements in monoculture model input, to offset by a single variable input to negative marginal output and production to reduce adverse effects. Also can restore soil fertility to significantly increase crops output, increase the rate of crop replanting, thereby increase farmer actual economic benefits, etc.2. Implementation of Grassland farming system can effective use of natural resources, play a few times was a traditional mode of energy output. Not only for the next year’s grain crop yield increase beneficial soil foundation, but also to improve agricultural ecological environment and development.3. Provide a theoretical basis for experiment and the actual promotion of grassland farming system in the futureFinally, this paper puts forward some opinions and suggestions about grassland farming system’s generalize and development:Combining the theory of modern agriculture and technology, studies the variable factors of investment direction and technology progress. Combined with geographical distribution in China, on the theory of the grassland agriculture, research on the laws of the grass distribution and planting method. Use more math, economic and other multidisciplinary theory, the introduction of more relevant models and analysis methods, statistical analysis of the existing agricultural data more in-depth, in order to get more intuitive analysis results, such as grass farming combination provides the theory basis for new planting patterns of agricultural extension.