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长期以来,我国化肥养分利用率一直较低,当季利用率氮肥约为30%~35%,磷肥约为10%~25%,钾肥约为35%~50%。化肥养分的大量损失不仅造成资源浪费和经济损失,也对生态环境构成影响。缓释/控释肥料的出现和发展,在提高养分利用率、减轻养分流失污染等方面为人们提供了有效的解决途径。一、缓释/控释肥技术突飞猛进目前我国缓/控释肥的研发技术及包膜设备已居于世界前列,控释效果明显,施用范围广泛。我国已建立了多
For a long time, the utilization rate of chemical fertilizers in our country has been relatively low. The seasonal utilization rate of nitrogen fertilizer is about 30% -35%, that of phosphate fertilizer about 10% -25%, and that of potash fertilizer about 35% -50%. Large losses of fertilizer nutrients not only cause waste of resources and economic losses, but also affect the ecological environment. The emergence and development of slow release / controlled release fertilizers provide people with an effective solution to improve nutrient utilization and reduce nutrient loss and pollution. First, sustained release / controlled release fertilizer technology by leaps and bounds At present, China’s slow / controlled release fertilizer research and development technology and coating equipment has been living in the forefront of the world, controlled release effect is obvious, the application of a wide range. Our country has established more