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论述磷肥按溶解性分类情况。根据不同磷肥的溶解性(水溶性、弱酸溶性和枸溶性)选择合适的溶剂、称量范围和溶解条件,测定其有效磷(水溶性磷和枸溶性磷总和)含量,才能得到准确的结果。
Discussed the classification of phosphate fertilizer by solubility. According to the solubility of different phosphate fertilizer (water-soluble, weak acid-soluble and citric acid soluble) select the appropriate solvent, weighing range and dissolution conditions, determination of the available phosphorus (water-soluble phosphorus and citric acid soluble phosphorus total) content, can get accurate results.