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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (5): 105-108.

所属专题： 小麦

• 农学 农业基础科学 • 上一篇    下一篇

有机质包膜尿素对冬小麦产量和氮肥利用率的影响

殷文鹏 袁亮 李絮花 林治安 赵秉强   

  • 收稿日期:2010-10-25 修回日期:2010-11-29 出版日期:2011-03-05 发布日期:2011-03-05
  • 基金资助:

    中央级公益性科研院所基本科研业务费专项资金;公益性行业（农业）科研专项经费

Effect of Organic Coated Urea on the Winter Wheat Yield and Nitrogen Utilization

  • Received:2010-10-25 Revised:2010-11-29 Online:2011-03-05 Published:2011-03-05

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摘要：

此文利用盆栽试验研究了3类有机质包膜尿素对冬小麦的产量、氮肥利用率与农学效率、氮素生理效率与收获指数的影响。结果表明：在等氮量条件下，有机质包膜尿素可显著提高冬小麦产量和氮肥利用率。在含N 0.10 g/kg土和含N 0.20 g/kg土水平下，YU2（有机质包膜尿素2）处理较普通尿素分别增产12.7%和19.4%，氮肥的利用率分别提高14.8%和10.8%，效果最为显著。在含N 0.20 g/kg土水平下，与普通尿素相比，3类有机质包膜尿素不同程度的提高了氮肥的农学效率、氮素生理效率和收获指数，YU3（有机质包膜尿素3）对氮素生理效率和收获指数的影响最大，分别提高了0.83 kg/kg和2.56%；YU2处理对提高氮肥农学效率的效果最显著，在含N 0.10 g/kg土和含N 0.20 g/kg土水平下，每千克氮分别增产4.04 kg和3.64 kg小麦籽粒。

关键词: 有机质, 有机质

Abstract:

A pot experiment was designed to observe the effect of winter wheat yield, nitrogen utilization (Agronomic N use efficiency (AE), Apparent N recovery efficiency (NRE) and Physiological N use efficiency (PNUE)) and harvest index of three new kinds of organic coated urea fertilizers. The results showed that: The organic coated urea could significantly increase the winter wheat yield and nitrogen use efficiency compared with general urea in the same nitrogen (N) application rate. Under the fertilizer application level of include N 0.10 g/kg soil and include N 0.20 g/kg soil, the yield increase rate of organic coated urea2 (YU2) compared with general urea were 12.7%, 19.4%, respectively, and the increase rate of NRE were 14.8%, 10.8%, respectively. All the 3 kinds of organic coated urea fertilizers increased the AE, PNUE and harvest index in varying degrees compared with general urea under include N 0.20 g/kg soil N application level which the PNUE and harvest index increase rate of the organic coated urea3 (YU3) were 0.83 kg/kg and 2.56%, respectively with a significant difference; and the YU2 played the most important role in AE increase with the rate 4.04 kg/kg, 3.64 kg/kg, respectively, under include N 0.10 g/kg soil and include N 0.20 g/kg soil.