Study on the multiple crops cultivation model in two years taking watermelon and peanut as the main crops

According to the resources of 1ight，heat，water and fertility in the sandy area of Henan Province，a new cuhiration model interplanting with different crops is studied for the raise of utilization efficiency of resources ．The rational interplantation of earlymaturing watermelon，no-seed watermelon，lean，peanut and wheat in this model supplies a useful experience for the high effective agricultural production．The arrangement and the cultivated method of the main crops in this model are introduced，and the expected economic efficiency is also evaluated in the thesis．The results show that the traditional rotation system of wheat-peanut in Kaifeng sandy area can only bring a net profit of 10．59 thousands yuan each hm² in two years，while the new cultivated model can bring 39．36 thousands yuan each hm²． The economic efficiency with the new cultivated model can raise 271．7％ more than that with the tradition method ．