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长期以来,我国农业增产主要依靠化肥,而化肥仍以单质氮肥、速效肥为主,这些肥料的盲目大量使用,不仅造成化肥成本过高,而且严重污染水体,使得土壤板结严重,农产品质量也不尽如人意。而施用缓释肥料,能够提高农作物品质和产量,减少环境污染,其中硫包衣尿素(SCU)就是一种值得推广应用的新型缓释肥料。
For a long time, China’s agricultural production mainly relies on chemical fertilizers, and chemical fertilizers are still mainly nitrogen-based and quick-acting fertilizers. The blind use of these fertilizers has not only caused the high cost of fertilizers, but also seriously polluted the water, resulting in serious soil compaction and poor quality of agricultural products Enough. The application of slow-release fertilizer, can improve crop quality and yield, reduce environmental pollution, of which sulfur coated urea (SCU) is a new extended-release fertilizer worth promoting.