| 新型包膜控释尿素对水稻产量与氮肥利用率的影响 |
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| 引用本文： | 陈贤友,吴良欢,李金先,应金耀.新型包膜控释尿素对水稻产量与氮肥利用率的影响[J].浙江农业学报,2010,22(6):829. |
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| 作者姓名： | 陈贤友 吴良欢 李金先 应金耀 |
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| 作者单位： | 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 |
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| 基金项目： | "十一五"国家科技支撑项目 |
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| 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。
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| 关 键 词： | 包膜控释尿素 水稻产量 氮肥利用率 水稻 |
Effects of new controlled-release coated urea on rice grain yield and nitrogen use efficiency |
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| CHEN Xian-you,WU Liang-huan,LI Jin-xian,YING Jin-yao.Effects of new controlled-release coated urea on rice grain yield and nitrogen use efficiency[J].Acta Agriculturae Zhejiangensis,2010,22(6):829. |
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| Authors: | CHEN Xian-you WU Liang-huan LI Jin-xian YING Jin-yao |
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| Institution: | 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 |
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| 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． |
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| Keywords: | controlled-release coated urea grain yield nitrogen use efficiency rice |
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