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地膜覆盖对土壤氮素矿化的影响
学位论文
硕士, 兰州: 兰州大学, 2017
Authors:
宋文元
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Submit date:2019/01/17
地膜覆盖
土壤水分
氮素矿化
土壤无机氮
氮素添加对青藏高原高寒草甸植被和土壤氮素供应能力的影响
学位论文
硕士, 兰州: 兰州大学, 2015
Authors:
郭雅婧
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Submit date:2019/01/17
高寒草甸
氮素添加
群落
有机氮
氮素矿化潜力
氮素矿化速率
地膜覆盖对半干旱区玉米地土壤氮素循环和肥料氮去向的影响
学位论文
博士, 兰州: 兰州大学, 2014
Authors:
刘小娥
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Submit date:2019/01/17
地膜覆盖
土壤温度
土壤水分
氨挥发
土壤氮素矿化
土壤无机氮
肥料氮利用效率
肥料氮的去向