粉煤灰和铁尾矿对桔园红壤生物学特性的影响

Effects of Coal Ash and Iron Tailing on Biological Properties of Red Soil in Orange Garden

在浙西桔园红壤中施用粉煤灰和铁尾矿，并套种牧草（苏丹草），可改善红壤的物理、化学及生化性质，促进牧草对养分的吸收。

In order to improve the present situation of red soil ecosystem in orange garden, forage grasses were sown under orange trees, and several kinds of industrial and mining residues were applied. After the application of both iron tailing and coal ash to red soil, the physical, chemical and biochemical properties of the soil were ameliorated, the absorption of Sudan grass to nutrients was promoted,and the production was increased obviously.