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中安公社汤屯大队九队从1978年2月下旬开始搞露天高温快速堆肥,到春播前积肥量比过去大大增加,施肥面积由原来的50%上升到90%左右,肥料质量也大大提高。露天高温快速堆肥的做法:
The nine communes of Tongtang Brigade of Zhongan Commune started to engage in rapid composting of high temperature in open air in late February 1978 and the amount of fertilizer before spring sowing increased greatly compared with the past. The area of fertilization increased from 50% to 90% and the quality of fertilizers was also greatly improved. Open-air high temperature composting practices: