Wheat and rice stubble and Chinese milk vetch are turned down and buried in the field; they are easy to rotten and increasing the organic fertilizer of the filed.
稻麦茬和红花草翻耕田底，易于腐烂，有利于增加农业有机肥力。
After the activated sludge dehydration and dehydration can be used as fertilizer or buried.
而且活性污泥脱水机经脱水机脱水后可以用做肥料或做深埋处理。
After the activated sludge dehydration and dehydration can be used as fertilizer or buried.
而且活性污泥脱水机经脱水机脱水后可以用做肥料或做深埋处理。
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