新型氮肥肥料效应与氮素利用率对比研究
Comparison between the fertilizers efficiency and apparent efficiency of nitrogen of new-type N-fertilizers
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摘要: 旱地和水田施用新型N肥试验结果表明，与普通尿素相比，施用腐殖酸尿素、木质素尿素和涂层尿素对水稻、小麦均具有明显增产效果，稻谷增产率为14%～16%，小麦籽实增产率为4%～17%，肥效为腐殖酸尿素≥木质素尿素＞涂层尿素。水稻对肥料N素利用率提高7%，差异达显著水平，小麦对肥料N素利用率提高2.7%～17%。Abstract: The experiments of new-type N-fertilizers were carried out in paddy field and upland field.Compared with common urea,after humic acid-urea,lignin-urea and coating-urea were applicated,the output of paddy rice and wheat were oboviously increased.The yield of rough rice was increased by 14%～16%，and the yield of wheat grain was increased by 4%～17%，the order of fertilizers efficiency was humic acid-urea≥lignin-urea＞coating-urea.Apparent efficiency of nitrogen was also increased by 7% in paddy rice and increased by 2.7%～17% in wheat.
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