Preliminary Discussion on Creation of New Technology of Raising Mechanical Transplanting Seedling and Model Construction of Rice-Rice-Rapeseed Triple Cropping System in Double-Cropping Rice Area of China
This paper summarizes the development status of the rice-rice-rapeseed triple cropping system in Jiangxi Province,and analyzes the current situation that farmers do not accept the model of rice-rice-rapeseed triple cropping system due to the superposition of the two factors of intensive crops rotation and low comparative benefit.It is clear that solving the bottleneck restriction of intensive crops rotation is the key to break farmers'refusal to accept the rice-rice-rapeseed model.Furthermore,for solving the bottleneck problems and symptoms of rice and rape machine sowing seedling transplanting,the new technical goal of cultivating long seedling age with tillers and strong seedlings was put forward.The pot blanket plate was used to realize the precise,sparse and uniform sowing,and the 35-day long seedling age and strong seedlings of early rice and the 30-day long seedling age with tillers and strong seedlings of middle and late rice were cultivated,so as to solve the contradiction of the intensive crops rotation of triple cropping system.
ricenew technology of raising mechanical transplanting seedlingnew model of rice-rice-rapeseedtriple cropping systemintensive crops rotationtechnological innovation
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