The Comparative Study On Ecological And Economic Benefits Of Different Multiple Cropping Patterns On Upland Red Soil

In order to seek a new mode of high efficient multiple cropping patterns, excavateproductivity potential on upland red soil, improve the ecological and economic benefits,this test designs three multiple cropping patterns compare with traditional way on the basisof summing up predecessors’ experience, analyses their productivity, resource utilization,energy flow, material cycle, soil fertility benefit, crop diversity and economic benefits, etc.The results show that:(1) The multiple cropping patterns extend the growth period, improve the utilizationrate of resources, energy, material conversion rate and soil quality, so as to achieve thepurpose of increase production, income and efficiency;(2) Treatment C has long growth time, gets better utilization of natural resources thanother treatments, and ryegrass has good effect of land and optimistic productivity. So it hashigh productivity, resource utilization, energy flow and soil fertility benefit. It is good fordeveloping animal husbandry, and planting ryegrass is conducive to the sustainabledevelopment of agriculture, But the material circulation efficiency and economic efficiencyof this multiple cropping pattern are low;(3) As a structure of green manure crop-crop-food crop-commercial crop, greenmanure crop to improve the soil fertility in winter, combines with efficient intercroppingcultivation, and plants minor economic crops as sesame(Sesamum indicum L.), treatment Bis a new cultivation method of stable crop production, increasing economic efficiency andrational utilization land resources. Its ecological and economic benefits is the best, and ithas a positive significance of production and agricultural sustainable development in thefuture.