在优良的种子外面再包一层药膜,就像古人穿盔甲一样,可以大大提高良种对病虫害的抵抗能力,保证良种发挥更大的效益。近年来,随着良种繁育工作的发展,这项实用的种子加工技术也取得了较大的进展。如采用种衣剂包在泡沫酸脱绒后的棉籽外面形成药膜,对防治棉花苗期病虫害已取得明显效果。棉籽泡沫酸脱绒成套设备已开始投入种子加工工业市场,目前正在我国棉花生产中推广使用。种衣剂是由具有成膜性好的粘合剂同若干助剂与经超微粉碎的农药活性组份配制而成,包在种子上能迅速固化成膜形成种衣,种衣在水中只能溶胀而不被溶解,这是保证种子正常发芽和药剂缓解,延长持效期的关键。当带有种衣的种子播入土中,药膜在种子周围形成保护屏障,防止某些经土壤和种子传染的病虫害侵袭,随着种子 A good layer of medicinal film on top of the fine seeds, just like the ancients’ armor, can greatly enhance the resistance of the elite to pests and diseases and ensure that the elite will exert greater benefits. In recent years, with the development of seed breeding work, this practical seed processing technology has also made great progress. Such as the use of seed coating in the foam off the cashmere cotton seed formed outside the film, the prevention and control of cotton seedling pests and diseases have achieved significant results. Cottonseed foam acid velvet complete sets of equipment has begun to put into the seed processing industry market, is currently being promoted in China’s cotton production. Seed coating is made of a good film-forming adhesive with a number of additives and the ultra-finely ground pesticide active ingredients formulated in the package can be quickly cured film-forming seed coating, the kind of clothing in the water only Swell can not be dissolved, which is to ensure the normal seed germination and drug remission, the key to extending the duration of maintenance. When seeds with seed coat are sown into the soil, the protective film forms a protective barrier around the seed to prevent some pests from infestation by the soil and seeds. With the seed