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Study on nitrate nitrogen leaching in poplar-wheat intercropping ecosystem by in situ analysis
Pages: 111-116
Year: Issue:  2
Journal: Journal of Nanjing Forestry University(Natural Science Edition)

Abstract: 利用田间原位淋溶装置研究了杨麦间作系统中林分密度和施氮量对小麦田土壤60 cm深处硝态氮淋失浓度和淋失量及0~80 cm土层硝态氮分布特征的影响.施氮量设不施氮(N0,0 kg/hm2)、常规施氮(N140,140 kg/hm2)、减量施氮(N70,70 kg/hm2)、增量施氮(N210,210kg/hm2)4个处理.结果表明:对照地淋溶水量与降水呈显著正相关关系;杨麦间作系统能显著减少淋溶水量...
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