安徽农业科学2017，Vol.45Issue(19)：21-22,24,3.
不同氮肥用量对水田旱整机插水稻产量和氮肥利用率的影响
Effects of Nitrogen Dosage on the Yield and Nitrogen Use Efficiency of Machine Transplanted Rice Using the Technology of Dry Soil Preparation in Rice Paddy Field
张彦兵 1唐小洁 1陈守用 1李东升 1杜洪艳1
作者信息
- 1. 江苏省连云港农垦农业科学研究所,江苏连云港 222248
- 折叠
摘要
Abstract
[Objective]The research aimed to analyze the effects of nitrogen dosage on the yield and nitrogen use efficiency of machine transplanted rice using the technology of dry soil preparation in rice paddy field.[Method]With conventional Japonica rice cultivar shengdao 18 as the study material,the effect of nitrogen dosage on stem and tillers dynamics,yield components and nitrogen use efficiency were investigated using the technology of dry soil preparation in rice paddy field.[Result]The highest yield was 10 957.20 kg/hm2 as the nitrogen application was 315.00 kg/hm2.Meanwhile,the roughness ratio,grain-straw ratio and nitrogen use efficiency remained at a higher level.Low nitrogen application could not obtain high yield.In contrast,high nitrogen application quantity led to a significant decline in nitrogen use efficiency.[Conclusion]The study could provide a scientific basis for the further promotion of the technology of dry soil preparation in rice paddy field.关键词
水稻/水田旱整/氮肥用量/产量Key words
Rice/Dry soil preparation in rice paddy field/Nitrogen dosage/Yield分类
农业科技引用本文复制引用
张彦兵,唐小洁,陈守用,李东升,杜洪艳..不同氮肥用量对水田旱整机插水稻产量和氮肥利用率的影响[J].安徽农业科学,2017,45(19):21-22,24,3.
