| 树脂包膜尿素对水稻产量和氮肥利用率的影响 |
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| 引用本文： | 袁嫚嫚,叶舒娅,刘枫,李敏,郭熙盛.树脂包膜尿素对水稻产量和氮肥利用率的影响[J].中国农业气象,2011(Z1). |
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| 作者姓名： | 袁嫚嫚 叶舒娅 刘枫 李敏 郭熙盛 |
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| 作者单位： | 安徽省农业科学院土壤肥料研究所; |
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| 基金项目： | “十二五”国家科技支撑计划“缓控释肥产业化技术集成与示范”(2011BAD11B02) |
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| 摘 要： | 通过田间小区试验,研究了树脂包膜尿素对水稻产量和氮肥利用率的影响。结果表明,树脂包膜尿素处理比普通尿素处理显著提高水稻产量和氮肥利用率。施氮素180kg/hm2,树脂包膜尿素和普通尿素按氮素用量7∶3比例掺混基施处理,水稻增产效果和经济效益最好,其中产量增幅为5.6%～30.5%。减少氮素用量30%,即施氮素126kg/hm2,树脂包膜尿素基施和普通尿素追施按氮素用量6∶4处理,水稻氮肥利用率最高,且水稻产量亦高于普通尿素常规处理。表明树脂包膜尿素可以减少氮肥用量,保证水稻产量,又有利于保护环境。
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| 关 键 词： | 树脂包膜尿素 水稻 产量 氮肥利用率 |
Effects of Application of Controlled-release Polyolefin-coated Urea on Yield and Nitrogen Utilization Rate of Rice |
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| YUAN Man-man,YE Shu-ya,LIU Feng,LI Min,GUO Xi-sheng.Effects of Application of Controlled-release Polyolefin-coated Urea on Yield and Nitrogen Utilization Rate of Rice[J].Chinese Journal of Agrometeorology,2011(Z1). |
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| Authors: | YUAN Man-man YE Shu-ya LIU Feng LI Min GUO Xi-sheng |
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| Institution: | YUAN Man-man,YE Shu-ya,LIU Feng,LI Min,GUO Xi-sheng (Institute of Soil and Fertilizer,Anhui Academy of Agricultural Sciences,Hefei 230031,China) |
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| Abstract: | Field plot experiment was conducted to investigate the effects of application of controlled-release polyolefin-coated urea on yield and nitrogen utilization rate of rice.The results showed that application of controlled-release polyolefin-coated urea could increase yield and nitrogen utilization rate of rice significantly.The highest yield and economic benefit of rice was the treatment with amount of 70% controlled-release polyolefin-coated urea and 30% urea applied which was added up to 180kg/ha nitrogen a... |
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| Keywords: | Controlled-release polyolefin-coated urea Rice Yield output Nitrogen utilization rate |
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