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1980～1981年在吴忠县古城公社古城七队进行了春播稻田绿肥对比试验,取得良好成绩.亩产鲜草1984～2470斤,比未种绿肥只施化肥的对比田,降低成本34.1～35.03元/亩,增产水稻147～180.9斤/亩.
1980 ~ 1981 in Wuzhong County ancient city of the ancient city of seven teams conducted a spring sowing paddy green manure contrast test, and achieved good results .Farm yield of 1984 ~ 2470 pounds of fresh green manure than only fertilizer contrast field, reduce the cost of 34.1 ~ 35.03 yuan / Mu, yield 147 ~ 180.9 kg / mu of rice.