›› 2010, Vol. 22 ›› Issue (6): 829-833.

• 论文 • 上一篇    下一篇

新型包膜控释尿素对水稻产量与氮肥利用率的影响

陈贤友1,吴良欢1,2,*,李金先3,应金耀3   

  1. 1 教育部环境修复与生态健康重点实验室,浙江大学 环境与资源学院,浙江 杭州 310029;2 浙江省亚热带土壤与植物营养重点研究实验室, 浙江大学 环境与资源学院,浙江 杭州 310029;3 浙江省杭州市萧山区农业局,浙江 萧山 311201
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-11-25 发布日期:2010-11-25

Effects of new controlled-release coated urea on rice grain yield and nitrogen use efficiency

CHEN Xian-you;WU Liang-huan;*;LI Jin-xian;YING Jin-yao   

  1. 1 Ministry of Education Key Laboratory of Environmental Remendiation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang Uiversity, Hangzhou 310029, China;2 Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition,College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310029,China;3Agricultural Bureau of Xiaoshan in Zhejiang Province, Xiaoshan 311201,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-11-25 Published:2010-11-25

摘要: 以晚粳稻‘秀水128’为供试水稻品种,在田间条件下,对金正大新型硫磺加树脂双层包膜控释尿素(SPCU)和树脂包膜控释尿素(PCU)对水稻产量及氮肥利用率的影响作了研究。结果表明:(1)与普通尿素 PU 70%(147 kg/hm2 N)处理相比,等氮量一次性基施 SPCU 70%处理产量为 8 022.5 kg/hm2,显著提高 5.26%;氮肥利用率为 49.32%,显著提高 38.42%;(2)与普通尿素 PU 100%(210 kg/hm2 N)相比,一次性基施 SPCU 70%处理产量无显著差异;氮肥利用率显著提高 33.69%;(3)相同施氮量下,SPCU产量与PCU无显著差异,但 SPCU比 PCU氮肥利用率显著增加。

关键词: 包膜控释尿素, 水稻产量, 氮肥利用率, 水稻

Abstract: Using japonica variety XiuShui 128,field experiments were carried out to investigate the effects of sulfur-polyester resin-coated urea(SPCU)and polyester resin-coated urea(PCU)on rice grain yield and nitrogen use efficiency(NUE). The results showed that:(1)compared to PU 70%(prilled urea)with N content at 147 kg·hm-2,the rice grain yields significantly increased by 5.26% with a single basal application of SPCU 70% under the same N rate which were 8 022.5 kg·hm-2,and the NUE were 49.32% which significantly increased by 38.42%;(2)compared to PU 100% with N content at 210 kg·hm-2,the rice grain yield showed no significant difference but the NUE significantly increased by 33.69% with a single basal application of SPCU 70%;(3)there was no significant difference between rice grain yields of SPCU and PCU; however, NUE of SPCU significantly increased compared to that of PCU.

Key words: controlled-release coated urea, grain yield, nitrogen use efficiency, rice