Method for improving a soil nematode fauna and a soil microflora

摘要

A method for improving a nematode fauna, which comprises applying a) methionine of the formula or 2-hydroxy-4-(methylthio)butyric acid of the formula or its salt and b) at least one member selected from the group consisting of an inorganic or organic fertilizer, a pH-controlling agent and an oxygen-supplying agent, to soil.