论文部分内容阅读
介绍磷酸盐的特性。提出在复合（混）肥生产中应合理配料，并控制好生产工艺，减少水溶磷在复合（混）肥中的退化。磷肥在不同类型土壤中的退化机理不同，大部分磷以金属磷酸盐和羟基磷灰石的形式储存在土壤中。磷在土壤中退化得很快，在一定的土壤和气候条件下，施用水溶性磷肥并非经济。在复合（混）肥生产中控制适当的水溶磷比例，既可满足作物生长的需要，又可减少土壤对磷的固定，提高施肥效益。
Describe the characteristics of phosphates. Proposed in the compound (mixed) fertilizer production should be reasonable ingredients, and control of the production process, reduce the dissolved phosphorus in the compound (mixed) fertilizer degradation. The mechanism of the degradation of phosphate fertilizer in different types of soils is different, and most of the phosphorus is stored in the soil in the form of metal phosphates and hydroxyapatite. Phosphorus degradation in the soil quickly, in certain soil and climatic conditions, the application of water-soluble phosphate is not economical. In the compound (mixed) fertilizer production control of the appropriate proportion of water-soluble phosphorus, not only to meet the needs of crop growth, but also reduce soil fixation of phosphorus and improve fertilizer efficiency.