专用复混肥是针对不同作物对氮、磷、钾三元素的需求规律和土壤养分测试结果而生产出的氮、磷、钾含量和比例不同的肥料,不同专用复混肥适用于不同作物。1.专用复混肥的原理专用复混肥是采用平衡施肥技术原理,根据作物的需肥规律和不同地区的土壤肥力,借助于现代化复混肥生产设 Special compound fertilizer is aiming at the requirement of three crops of nitrogen, phosphorus and potassium and the test results of soil nutrients to produce different fertilizers with different contents and proportions of nitrogen, phosphorus and potassium. Different special compound fertilizers are suitable for different crops. 1. The principle of special compound fertilizer Special compound fertilizer is the principle of balanced fertilization technology, according to the law of crop demand and soil fertility in different regions, with the help of modern compound fertilizer production facilities