江西农业学报2016，Vol.28Issue(5)：31-35,5.
硅基包膜控释肥对水稻产量形成、氮素吸收及氮肥利用率的影响
Effce ts of Controlled-release Fertilizers Coated by Silic-based Material on Yield Components, Nitrogen Absorption and Nitrogen Use Efficei ncy of Rice
摘要
Abstract
One continuous two-year field trial was conducted to study the effects of controlled-release fertilizers coated by silic-based materials on the yield components , nitrogen absorption and nitrogen use efficiency of rice , and analyzed the relation-ships of N harvest index with the yield, nitrogen content and nitrogen adsorption.The results showed that one-time basal applica-tion of controlled-release fertilizers coated by silic-based materials could get better effect, the rice yield was the highest in the treatment of applying 80% controlled-release fertilizer, the rice yields were 16661 kg/hm2 , the yield difference was not significant with time fertilization ( the optimal application treatment and the local conventional application treatment ) .Compared with the optimal application fertilization treatment , application of coated urea could significantly improve the apparent nitrogen use efficiency of rice.The rice nitrogen absorption had a positive relationship to the rice yield, there didn’ t exist obvious relationship between grain yield and nitrogen content , the N harvest index significantly decreased with the increasing of the biomass of rice straw, the N adsorption of rice straw and the total N adsorption .关键词
控释肥/水稻/产量形成/氮素吸收/氮肥利用率Key words
Controlled-release fertilizer/Rice/Yield components/Nitrogen absorption/Nitrogen use efficiency分类
农业科技引用本文复制引用
冯兆滨,冀建华,侯红乾,王萍,刘益仁,刘光荣,刘秀梅..硅基包膜控释肥对水稻产量形成、氮素吸收及氮肥利用率的影响[J].江西农业学报,2016,28(5):31-35,5.基金项目
国家自然科学基金项目（31101603）；国家科技支撑计划项目（2011BAD 41B 01）；江西省学科带头人培养计划；赣鄱555工程人选资助项目。 （）
