论文部分内容阅读
大田施用磷肥以一次全量施基肥效果最好。磷肥做基肥施用能促进农作物早生根,快分孽,早熟,高产。这是由磷肥的特性决定的。作物体内磷的含量一般为0.2—1.1%。磷是磷脂和核酸的组成成分。因此,磷对作物各器官分生组织的细胞分裂和增殖是必不可少的。磷肥在土壤中易被固定,移动性较小。因此磷肥的利用率一般都比较低,只有10—15%;豆科作物一般好一些,禾本科作物就更差
Field phosphate fertilizer to use a full amount of base fertilizer best. Phosphate fertilizer to do basal fertilizer to promote early root growth of crops, fast sins, premature, high yield. This is determined by the characteristics of phosphate fertilizer. Phosphorus content of crops is generally 0.2-1.1%. Phosphorus is a component of phospholipids and nucleic acids. Therefore, phosphorus is essential for cell division and proliferation of meristems in various organs of crops. Phosphate fertilizer in the soil easily fixed, less mobility. Therefore, the utilization of phosphate fertilizer is generally relatively low, only 10-15%; leguminous crops are generally better, grasses are even worse