论文部分内容阅读
磷肥在所有化肥中利用率是最低的，为了提高磷肥的肥效，必须根据土壤性状、作物特性、轮作制度、磷肥品种以及施用技术等加以综合考虑。１ 根据土壤条件合理分配和施用磷肥１．１ 据磷肥试验结果表明，当土壤全磷含量在０．１％以下，速效磷含量在５ ｍｇ／ｋｇ以下时，施磷效
Phosphate fertilizer has the lowest utilization rate of all chemical fertilizers. In order to improve the efficiency of phosphate fertilizers, it must be comprehensively considered according to soil characteristics, crop characteristics, crop rotation system, phosphate fertilizer varieties and application techniques. 1 According to the soil conditions, rational distribution and application of phosphate fertilizer 1.1 According to the phosphate fertilizer test results show that when the soil total phosphorus content below 0.1%, available phosphorus content below 5 mg / kg,