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草木灰富含钾、磷、钙、镁、硫及多种微量元素,是一种很好的农家肥料.然而鲜为人知的是,草木灰还是防治蚜虫的良药.用草木灰防
Ash is rich in potassium, phosphorus, calcium, magnesium, sulfur and a variety of trace elements, is a good farm fertilizer, but little-known is that ash is a good medicine to control aphids.