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草木灰是农村一项含钾丰富的农家肥源,是一种含多种元素的复合肥,主要是钾、钙、磷以及镁、锌、钼、铜、锰等,其中以含钾、钙最多,其次是磷。一般草灰含最(氧化钾)5—10%木材灰为6—10%,麦秆灰为13-15%,稻草灰为8—19%,蔗叶灰为7—12%。目前农村中,许多农户由于习惯势力的影响,对草木灰的保管与施用很不科学,如草木灰在厕所里混大粪堆储称“大粪灰”、或堆储在潮湿和露天的地方。
Ash is a rural rich manure source of potassium, is a multi-element containing compound fertilizer, mainly potassium, calcium, phosphorus and magnesium, zinc, molybdenum, copper, manganese, etc., of which potassium, calcium most , Followed by phosphorus. The general grass ash contains (potassium oxide) 5-10% wood ash 6-10%, straw ash 13-15%, straw ash 8-19%, sugarcane leaf ash 7-12%. At present, many rural households are not scientific because of the habitual influence of custody and application of ash as a mixture of dung in toilets called “dung ash” or stored in wet and open places.