大草 冬春时节在塑料大棚内栽培蔬菜时,在栅内地面均匀地撒施一层草木灰,可以降低棚内湿度,提高地温,补充钾肥,有利于防病虫,增加产量,提高品质。 1.降湿防病虫 大棚栽培蔬菜时湿度过高,容易使蔬菜发生严重的病虫害。干草木灰有很 During the winter and spring grass planting vegetables in the plastic shed, spreading a layer of ash evenly on the ground in the grid can reduce the humidity in the shed, increase the ground temperature, and add potassium fertilizer, which is good for preventing pests and diseases, increasing the output and improving the quality. 1. Dehumidification pests greenhouse cultivation of vegetables when the humidity is too high, it is easy to make vegetables have serious pests and diseases. Dry ash has a lot