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4. 长期不同施肥模式土壤无机磷组分相对含量变化 |
Fig. 4. Changes of relative contents of inorganic phosphorus component under long-term different fertilization modes |
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