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“高原夏菜”剩余物资源状况及其还田效应
学位论文
硕士, 兰州: 兰州大学, 2012
Authors:
胡国平
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Submit date：2019/01/17
蔬菜废弃物养分资源调查
直接还田
养分释放
土壤氮矿化
分解周期
土壤氮损耗
产量效应
