于静,陈杨,樊明寿

• 1:内蒙古农业大学农学院

摘要(Abstract)：

中国马铃薯生产中氮肥的施用量较大,然而氮肥利用率却相对较低。为进一步认识马铃薯氮肥利用率的提升潜力,研究制定合理的马铃薯氮肥减施增效技术措施,从马铃薯氮素营养需求、氮素形态对马铃薯发育的调控等方面系统总结了马铃薯氮素营养规律,同时分析了马铃薯根系构型特点,薯田氮素淋洗损失,并藉此提出了马铃薯氮肥管理原则:分期调控、前轻后重、形态搭配、实时监测、水肥协调。另外,为高效回收马铃薯季残留于土壤的氮素,深根系应是马铃薯轮作体系后茬作物的特征之一。

关键词(KeyWords)： 马铃薯;根系;氮素淋洗;氮肥管理;肥料利用率

Abstract:

Keywords:

基金项目(Foundation): 内蒙古自治区成果转化项目(2019CG030);; 国家自然科学基金(31960637);; 内蒙古自然科学基金(2019BS03021)

作者(Author): 于静,陈杨,樊明寿

DOI: 10.19918/j.cnki.1672-3635.2021.02.012

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