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种子包衣,就是在种子表面包上一层由农药、微肥、激素、缓慢释放剂及黏合剂制成的种衣剂。种衣剂不同于浸种或拌种用的农药乳剂或粉剂,它包在种子上能立即固化成膜,包衣后的种子播入土壤后,种衣遇水能迅速吸水膨胀,而不被溶解,保证种子发芽,种衣剂中活性成分能缓慢释放,逐步被作物幼苗吸收,防治苗期病虫害,促进作物生长。
Seed coating, is the seed surface coated with a layer of seed coating made of pesticides, trace fertilizers, hormones, slow release agent and binder. Seed coating agent is different from soaking or seed dressing with pesticide emulsion or powder, which can be wrapped in the seed immediately cured film, coated seed into the soil, the coating with water can quickly absorb water swelling, without being dissolved , To ensure seed germination, seed coating agent active ingredient can be slowly released, gradually absorbed by crop seedlings, prevention and control of pests and diseases at seedling stage, and promote crop growth.