Field trials were made on winter wheat, maize and rape, the results show a sharp yield increase by the application of these sludge fertilizers.

加工复合微生物肥料。对试制的污泥肥进行冬小麦、玉米、油菜施肥试验，结果表明污泥肥可使作物大幅度增产。

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Field trials were made on winter wheat, maize and rape, the results show a sharp yield increase by the application of these sludge fertilizers.

加工复合微生物肥料。对试制的污泥肥进行冬小麦、玉米、油菜施肥试验，结果表明污泥肥可使作物大幅度增产。

youdao