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煤灰,许多人认为是一种废物,其实不然。煤灰含氮0.056％,含磷1.6％,含钾2.3％,含三氧化二铁6.44％,含二氧化硅76.2％,此外,还含有铜、硼、锌、钴等微量元素。煤灰中这些成份都是农作物生长所需要的营养。 如果我们把煤灰作肥料,不仅能增强作物的抗性,同时还有一定的改土作用,特别是施入粘重的土壤中效果更好,它能提高土温、增强保水蓄水能力,增加孔隙度,降低容重,协调水、肥、气、热情况,增强微生物的活动,促进养分的转化。
Ash, which many think is a waste, is not. Coal ash 0.056% nitrogen, 1.6% phosphorus, 2.3% potassium, containing 6.44% ferric oxide, containing 76.2% silicon dioxide, in addition, also contains copper, boron, zinc, cobalt and other trace elements. These ingredients in coal ash are all nutrients needed for crop growth. If we use coal ash as a fertilizer, we can not only enhance the resistance of crops, but also have a certain role in improving soil, especially in heavy soils. It can improve soil temperature and enhance water retention capacity, Increase porosity, reduce bulk density, coordinate water, fertilizer, gas and heat conditions, enhance microbial activity, and promote the transformation of nutrients.