草木灰富含钾,并含有大量的磷、钙、镁、硫及各种微量元素,是一种很好的农家肥料,还是一种防治病虫的良药。 一、防治蚜虫:用草木灰防治蚜虫效果在90％以上。发现作物茎叶上有蚜虫后,取新鲜草木灰过筛,在清晨或傍晚有露水时手工漫撒,隔3—5天再撒一次,草木灰要尽量撒在虫体上。 Ash is rich in potassium, and contains a lot of phosphorus, calcium, magnesium, sulfur and various trace elements, is a good farmer’s fertilizer, or a good medicine to prevent pests. First, control aphids: aphids with grass ash control effect of more than 90%. Found aphids on the stems and leaves of the crop, take fresh grass ash sift, manual diffuse dew in the morning or evening, sprinkle again 3-5 days, the ash should try to sprinkle on the parasites.