| 水稻应用控释氮肥的增产效果 |
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| 引用本文： | 张超,孟繁勤,史春余.水稻应用控释氮肥的增产效果[J].山东农业科学,2009(12):84-86. |
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| 作者姓名： | 张超 孟繁勤 史春余 |
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| 作者单位： | 1. 山东农业大学农学院,山东,泰安,271018
2. 济宁市市中区唐口镇农业技术推广站,山东,济宁,272061 |
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| 基金项目： | "十一五"国家科技支撑计划项目 |
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| 摘 要： | 通过大田试验,以普通尿素作对照,研究了包膜尿素对水稻产量及其构成因素的影响。结果表明：施用控释氮肥提高了水稻的结实率和分蘖成穗率,增加了单位面积的有效穗数,显著提高了稻谷产量;控释氮占总氮的比例越高,增产效果越好。控释氮占总氮的比例以52%～87%为宜,稻谷增产幅度达7.36%～12.86%。
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| 关 键 词： | 水稻 控释氮肥 稻谷产量 |
Increase of Rice Grain Yield in Response to Application of Controlled- release Nitrogen Fertilizer |
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| ZHANG Chao,MENG Fan-qin,SHI Chun-yu.Increase of Rice Grain Yield in Response to Application of Controlled- release Nitrogen Fertilizer[J].Shandong Agricultural Sciences,2009(12):84-86. |
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| Authors: | ZHANG Chao MENG Fan-qin SHI Chun-yu |
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| Institution: | ZHANG Chao , MENG Fan - qin, SHI Chun - yu ( 1. Agronomy College of Shandong Agricultural University, Taian 271018, China; 2. Agricultural Technique Popularizing Station of Tangkou Town, Jining 272061, China) |
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| Abstract: | With the common urea as control,the field experiment was conducted to study the influence of coated urea on rice yield and yield components.The results showed that the application of controlled-released nitrogen increased the seed setting rate,the percentage of available tillers and the number of effective ears per unit area,and also significantly increased the grain yield.The more controlled-release nitrogen in the total nitrogen was,the better the yield increase effect was.The ratio of controlled-release nitrogen to total nitrogen as 52%～87% was the optimum with the increase amplitude of yield as 7.36% ～12.86%. |
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| Keywords: | Rice Controlled-release nitrogen fertilizer Grain yield |
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