北京化工研究院和北京市农业局共同开发的用于玉米高产的高分子包衣膜材料问世。 高分子包衣膜主要是选用聚烯烃(如聚丙烯、聚乙烯等)为基本材料,将这些高分子材料包敷在玉米种子表面,可阻止外界水分进入种子,使种子不能发芽。经过预先设定的时间,包衣膜开裂降解,水分又可正常进入,种子即可正常发芽。这样就可以控制种子的发芽时间。采用此种技 Beijing Institute of Chemical Technology and Beijing Municipal Bureau of Agriculture jointly developed for high yield corn film coating material available. Polymer coating film is mainly used polyolefin (such as polypropylene, polyethylene, etc.) as the basic material, these polymer materials coated on the surface of corn seeds, to prevent water from entering the seeds, so that the seeds can not germinate. After a pre-set time, the coating film cracking degradation, moisture can be entered normally, the seeds can germinate normally. This will control seed germination time. Use this technique