冬小麦施用控释氮肥增产效应研究初报

Effect of applying controlled release nitrogen fertilizer on yield enhancement of winter wheat

  • 摘要: 冬小麦施用2种控释N 肥田间小区试验研究结果表明,不同灌水量、等N量下冬小麦施用乐喜施控释N肥(F2)和众品控释N 肥(F3)均比鲍用普通尿素(F1)显著提高产量,产量结构明显改善,N 素刊用效率分别提高3%~5%(W1)和2%~6%(W2),经济效益F3,处理增收1082元/hm2:,而F3处理平均减收632.7元/hm2,收获期耕层土壤所保持的N量较多。

     

    Abstract: The field plot experiments of applying two kinds of controlled release nitrogen fertilizer (CRNF) on winter wheat were conducted,showing that the winter wheat yield and its components are improved,and the nitrogen use efficiency is elevated by a range from 2% to 6% under different irrigation conditions and same quantity of nitrogen.The N of two kinds of CRNF is not only abm rbed by the winter wheat but also remains more than urea in cultivate layer at harvest stage.From the economic analyses,the net gain of wheat by CRNF treatment can be increased by 1082 yuan/hm2 ,more than that by urea treatment under an appropriate irrigation condition.

     

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