期刊论文

中文

土壤

0253-9829

2014

46

6

971-975

10.13758/j.cnki.tr.2014.06.001

国家科技支撑计划课题项目（2012BAD15B04） 省教育厅平台项目（11K034）资助

本校为第一机构

通过田间小区试验,研究了不同氮肥处理对双季稻产量及氮肥利用率影响.结果表明:增施氮肥处理比不施氮肥处理双季稻的有效穗数、每穗粒数均显著提高,早稻产量增产77.0％～ 127.1％,晚稻增加62.9％～ 108.0％;早稻中等量控释氮肥处理较普通尿素处理水稻单位有效穗数、每穗粒数、农学利用率均增加,同时增产5.0％,氮肥利用率提高18.0个百分点;减量控释氮肥处理与普通尿素处理比有效穗数、每穗粒数、产量、氮肥农学利用率有所下降但氮肥利用率提高18.6 ～ 20.2个百分点,晚稻中各控释氮肥处理较普通尿素处理每穗粒数增加、产量增产,增产率为9.7％ ～ 27.7％,氮肥利用率提高28 ～ 31.1个百分点,且农学利...

Field plot experiment was conducted to study the effects of different nitrogen fertilizers on rice yield and nitrogen use efficiency in this paper. The results showed that compared with control treatment, the effective panicles and total grain of double cropping rice were significantly increased and yield of early rice was increased by 77.0% to 127.1%, late rice by 62.9% to 108.0% by supplied nitrogen fertilizer, compared to the common urea, the effective panicles, total grain yield（increased by 5.0%）, nitrogen use efficiency（increased by 18...