Comprehensive testing and analysis on working effects of the rape transplanters

Manual planting is still the main method on winter rape in South China.Rice oil rotation area in South China have the problems of rice harvest delay,rice ＆ oil stubble tension,rape planting difficulty.As the result,there are a large number of winter fallow fields for planting rape.Mechanical seedling raising and transplanting of rape has the advantages of rotation planting rapidly and yield increasing.These are urgent missions to quickly improve the reliability and applicability of transplanters,and to work hard to realize the simplification and standardization of seedling raising.China Agricultural Mechanization Center,Ministry of Agriculture and Rural Affairs,organized comprehensive testing on working effects of the rape transplanters.From the results,in terms of operation performance of the three machines,the planting frequencies have all reached 100seedlings per minute per line,planting densities have all reached 100thousands seedlings per hectare,which can meet the requirements for high-speed and high-density planting of rape,Yunma 2ZGK-6has the high maturity and adaptability.In terms of economic performance of the three machines,operation efficiencies are all 50times that of manual transplanting,meanwhile,the total operation costs are all only 1/10-1/5of manual transplanting.Yunma 2ZGK-6 can fulfill land preparation ＆ transplanting double operations,showing the superior economic performance on mechanical transplanting rape directly in rice stubble field.Through analysis of the testing result,the paper puts forward some measures and recommendations including,increasing subsidies for breeding as to support the development of mechanized rape transplanting,increasing subsidies for equipment purchase to ensure the supply of rape transplanters,increasing the demonstration and promotion of technology to summarize and integrate appropriate modes for different regions.