Effect of Different Nitrogen Application Amount on the Net Increment of Fresh Dry Weight in Hybrid Rape  

不同施氮量对杂交油菜鲜干重净增量的影响(英文)

作　　者：任廷波[1] 赵继献[1] 

机构地区：[1]贵州省油料科学研究所

出　　处：《Agricultural Science & Technology》2008年第2期147-151,共5页农业科学与技术（英文版）

基　　金：Funds for Transformation of Scientific and Technological Achievements of Ministry of Science and Technology of China (04EFN215200268);the Nomarch Special Foundation for the Excellent Science and Technology Talents of Guizhou Province[(2005(77)];the Science and Technology Program of Guizhou Province[(2006)6001]~~

摘　　要：[ Objective] The aim of the research was to provide reference for reasonable application of nitrogen fertilizer for high yield.cultivation of hybrid rape cuhivar Youyan 9 and Youyan 10. [ Method] The net increment changes of individual plant fresh weight and dry matter weight of Youyan 9 and Youyan 10 with different nitrogen application treatments were studied. [ Result] The differences among average fresh weight increments of individual plant and average dry matter weight increment of individual plant with different treatments reached 0. 01 extremely significant level. Fresh weight increment and dry matter weight net increment of individual plant declined gradually with the increase of nitrogen application. In growtheourse ,fresh weight net increment of individual plant increased firstly then decreased and the maximum was in beginning flowering stage, besides that dry matter net increment increased gradually and the maximum was in mature period. The correlations among fresh net increment, dry matter weight net increment and yield net increment were positive or extremely positive. [ Conclusion] Under experimental condition, when nitrogen application was 225 kg/hm^2, hybrid rape Yanyou 9 and Yanyou 10 with low erucic,low glucosinolate could obtain high yield.以“三高两低”杂交油菜油研9号和油研10号为材料，进行不同施氮量对单株鲜重净增量、单株干物重净增量影响的研究，探讨不同施氮量间施氮量净增量相同（75kg／hm^2），而单株鲜重净增量、单株干物重净增量的变化。

关 键 词：Hybrid rape Net increment Fresh dry weight Amount of nitrogen application 

分 类 号：S565.4[农业科学—作物学]