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在水土流失严重、土壤瘠薄、肥料缺乏、干旱和绝大多数还是坡耕地的晋西北黄土高原,采用“丰产沟”种植法,就能做到“蓄水、保土、抗旱、高产”。据连续四年在中阳县的子山、金罗、城关、暖泉等四个公社22个大队多点试验和示范,一般增产一倍左右,有的亩产千斤以上。并能种地养地,提高土壤肥力,持续获得高产。二年平均,梯田上增产91.3～94.9%;坡地上增产116%。张子山公社赵家山大队1978年在小面积试验获得增产一倍的基础上,1979年试
In the northwestern Shanxi province, the Loess Plateau of Shanxi Province is characterized by serious soil erosion, poor soil fertility, lack of fertilizers, droughts and the vast majority of cultivated land in the northwestern Shanxi. By using the “high production ditches” cultivation method, “water storage, soil conservation, drought resistance and high yield” can be achieved. For the fourth year in a row, 22 battalions of four communes, namely Zizhan, Jinluo, Chengguan and Nuanquan in Zhongyang County, have been experimenting and demonstrating for an average of two times. Some of them have produced more than one kilogram of mu production. And to raise their own species, improve soil fertility and continue to obtain high yield. The average of two years increased by 91.3% ~ 94.9% on terrace and increased by 116% on slope. Zhao Zishan Brigade of the Zhangzishan Commune On 1978, after a small area test doubled its production, the 1979 trial