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草木灰是农村中重要的钾肥肥源。各种农作物K_2O的含量不同,稻草灰8.09％、麦秸灰13.60％、棉秆灰11.22％、向日葵秆灰36.00％、木灰5.98～12.40％。其在农业生产中的作用如下: 1 草木灰可作种肥、基肥和追肥。作追肥可用1％的草木灰浸出液,喷于植物表面,效果更加显著。 2 草木灰中含有大量的钾元素,而钾元素能促进
Ash is an important source of potash fertilizer in rural areas. The content of K_2O in different crops is different. Straw ash 8.09%, wheat straw 13.60%, cotton stalk ash 11.22%, sunflower straw 36.00% and wood ash 5.98-12.40%. Its role in agricultural production is as follows: 1 ash can be used as seed fertilizer, base fertilizer and dressing. For topdressing available 1% of the ash leaching solution, spray on the plant surface, the effect is more pronounced. 2 ash contains a lot of potassium, potassium can promote