连续秸秆还田对油菜水稻轮作土壤磷素有效性 及作物磷素利用效率的影响
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Effect of Continuous Straw Returning on Soil Phosphorus Availability and Crop Phosphorus Utilization Efficiency of Oilseed Rape-Rice Rotation
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图6. 油菜(O)-水稻(R)轮作体系土壤有效磷对磷盈亏的响应关系 |
Fig. 6. Response of soil Olsen-P to P apparent balance at oilseed rape-rice rotation system |
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