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粉煤灰是煤燃烧的主要残留物。粉煤灰主要用于生产水泥、制作混凝土和陶瓷等。有人建议,将粉煤灰作为农业和土地改良中的改良剂和微肥原料,用来改善土壤物理性质。本文报导了在意大利两种有代表性的土壤上试验了两种来源不同的粉煤灰对土壤有机氮矿化作用的和硝化作用的影响。
Fly ash is the main residue of coal combustion. Fly ash is mainly used for the production of cement, making concrete and ceramics. It has been suggested that fly ash be used as a modifier and fertilizer ingredient in agricultural and land improvement to improve soil physical properties. This paper reports the effects of two different sources of fly ash on the mineralization and nitrification of soil organic N on two representative soils in Italy.