防止倒伏,是降低瘪谷率,确保谷子增产的关键措施。 造成倒伏的原因很多,诸如品种抗倒性差,间苗过迟,密度不合理,水肥过大,施用氮肥过早过多或灌水不当,实行风天漫灌,以及秋涝,风害等,都会引起谷子倒伏。谷子倒伏后,断株伤根,互相渡阴和挤压,光合产 Preventing lodging is a key measure to reduce the rate of deflated grains and ensure the increase of millet production. There are many reasons for lodging, such as poor lodging resistance, late rice, unreasonable density, excessive water and fertilizer, excessive nitrogen fertilizer or inappropriate irrigation, the implementation of romantic wind and flood, and autumn floods, wind damage, etc., will cause millet Lodging After the fall of millet, broken strain wound root, cross each other overcast and extrusion, photosynthetic production