等有机质 |
Relationship Between Soil Available Phosphorus and Inorganic Phosphorus Forms Under Equivalent Organic Matter Condition in a Tier Soil
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图3. 不同有效磷水平土各组分无机磷含量与有效磷含量的关系 |
Fig. 3. The relationship between the content of different forms of inorganic phosphorus and the content of Olsen P in a tier soil with a gradient of Olsen P level |
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