Study on the Effect of the Control Released Urea in the Wheat-Corn Rotation System
Study on the Effect of the Control Released Urea in the Wheat-Corn Rotation System
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发表时间：
2010
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通讯作者：
Li Bin-qi
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作者：
Li Bin-qi
在新坡村和合兴农场研究了控释尿素对小麦-玉米轮作体系中小麦和玉米产量的影响，结果表明，控释尿素100%处理产量最高，小麦产量分别为7980 kg hm-2和8290 kg hm-2 f，施氮量分别比100%常规尿素试验提高12.8%和14.3%。控释尿素与等量常规尿素相比，氮肥利用率高，玉米产量分别为6665 kg hm-2和6375 kg hm-2 f，控释肥在50%、70%、100%范围内，随着施氮量的增加，作物产量增加，而常规尿素的产量增加不明显，当施氮量减少1/3时，作物产量增加，而当施氮量减少1/3时，作物产量增加。产率没有降低。
The effects of control released urea(CRU) on wheat and corn yields in wheat-maize rotation system are studied in Xinpo Village and Hexing Farm,respectively.The results showed that,the yields of the treatment of CRU100% were the highest.The yields of wheat were 7980 kg hm-2 and 8290 kg hm-2f,or Xinpo Village and Hexing Farm respectively.It increased 12.8% and 14.3% compared with the 100% conventional urea test.As to the effect of the use efficiency of fertilizer-nitrogen,the composition above was also the best.Compared with the equivalent conventional urea,the use efficiency of fertilizer-nitrogen of control released urea was higher.The yields of corn were 6665 kg hm-2 and 6375 kg hm-2f,or Xinpo Village and Hexing Farm respectively,which increased 5.5% and 8.1% compared with the 100% conventional urea test.The crop yield increased with the nitrogen application,as the application of control released fertilizer among 50%,70% and 100%.And it was the same in conventional urea.As to the amount decreased by 1/3,the yields were not reduced.