当前复合肥生产普遍利用凹凸棒土作填料，利用这种粘土矿物需要开采并磨成细粉。
Attapulgite is usually used as a filler in nowaday complex fertilizers manufacture, but this clay mineral should extract and grind to powder.
1975年、1982～1983年、1990年采用菌粉拌细土手撒、纱布袋振动两种放菌方法。
Two methods (dusting Beauveria bassiana powder mixed with fine soil or vibrating with powder in gauze bag) used in 1974~1975, 1982~1983, 1990 to control Dendrolimuspunctatus Walker.
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