作为新型肥料的复合肥,具有有效养分含量高,养分齐全,节省包装、运输、贮藏费用,且针对一定的地区,土壤和作物有较为合理的养分配比,在与单一化同样投资的情况下,具有更加明显的增产效益,是今后化肥发展的主要方向。发达国家的复合肥多占化肥总量的50—80％,而我国目,前只占1—2％。前几年,我国复合肥只用在部分地区的部分经济作物上,大田作物的施用是近一两年的事。我国复合肥虽然起 Fertilizer as a new type of fertilizer, with effective nutrient content, complete nutrients, saving packaging, transportation, storage costs, and for a certain area, soil and crops have a more reasonable ratio of nutrients in the case of the same investment with the same , With more obvious yield increase, is the main direction of fertilizer development in the future. Compound fertilizer in developed countries account for more than 50-80% of the total amount of chemical fertilizers, while only 1-2% in China. A few years ago, China’s fertilizer was only used in some areas of some cash crops, the application of field crops is almost a year or two. Although China’s fertilizer from