长期定位施肥下潮土磷素盈亏及对无机磷的影响
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Phosphorus Profit and Loss and Its Effect on Inorganic Phosphorus in Fluvo-Aquic Soil Under Long-Term Located Fertilization
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图3. 25年长期不同施肥模式土壤各形态无机磷的变化 |
Fig. 3. Effects of various forms of inorganic phosphorus under different fertilization modes |
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