Study On Different Cropping Systems In Hilly Area Of Sichuan Province

In recent years,the Chinese government has been emphasizing the topic of food security.The purpose of this study is to explore a more suitable planting model in hilly area of sichuan province,and eventually achieve the purpose of increasing crop yield and income.Sichuan is a big agricultural province,the urban population is gradually increasing,but the rural labor force is increasingly short,the arable land area is also increasingly reduced,human activities caused serious soil loss,erosion deepening.We studied and discussed how to make full use of the soil resources in hilly areas of sichuan,make use of the limited land resources,make full use of paddy fields and dry lands,and minimize the input and maximize the output per unit area under the premise of intensive land use.At the same time,it is necessary to make full use of the advanced farming system,which can not only ensure the food supply in sichuan basin,but also ensure the stable development of animal husbandry,and solve the current situation of human and animal competing for food in sichuan basin to the greatest extent.Eventually,can raise grain yield already,can safeguard commissariat food safety again.Different cropping systems affect different grain yields.The research on the development law of planting system is of great significance for the observation of the current situation of agricultural utilization,the prediction of future agricultural development trend,and the provision of constructive guidance for the follow-up agricultural development.Vigorously developing modern planting industry,reasonably distributing planting system,adjusting planting structure and optimizing and upgrading planting industry are important directions to realize the advanced and sophisticated development of modern agriculture in China.In this paper,on the basis of related literature at home and abroad,data obtained from the comprehensive field investigation according to the theory of sustainable land use theory,food security and land intensive utilization theory as the theoretical basis,summarizes the hilly area of sichuan several major cropping system,including multiple cropping system,corn,soybean interplanting system,forage grass planting patterns and paddy fields tillage.At the same time,with the sichuan agricultural statistical yearbook statistical data,combining information consulting,visiting experts and a questionnaire survey,analysis of sichuan hilly area in the change of the cropping system development,It includes the change of cultivated land area and sown area of crops,the change of crop structure,the change of maturity system,the change of planting mode and the analysis of present situation and prospect,in order to provide the basis for the development and innovation of planting system in this area.Finally,the paper comes to the following principles: give priority to the development of high-tech agriculture,coordinate the development of sound system,adhere to the sustainable development of agriculture and ecological environment supplement each other;And the following conclusions: the proportion of mechanized planting mode,simplified planting mode and improved net planting mode should be improved in hilly areas of sichuan.