我省西部黄土高原十年九早,土壤贫瘠,粮食产量低而不稳。为改变这一现状,我们从1965年开始研究“抗旱丰产沟”种植法,其增产幅度较一般耕作法高1倍左右,比深翻耕作的增产34.9—44.8%,并能收到种地养地的效果。冶产效果为检验丰产沟的增产效果,我们于1980年10月组成考察组,进行了调查和验收。调查结果,在旱坪地 The western loess plateau in western China has ten years and nine early mornings with poor soil quality and low and unstable grain output. In order to change this situation, we started from 1965 to study planting methods of “drought-resistant and high production ditches”. The yield increase rate is about 1 times higher than that of general tillage method, 34.9-44.8% more than that of deep tillage cultivation, The effect of the earth. Metallurgical results In order to test the stimulation effect of Fengkuanggou, we formed an inspection team in October 1980 and carried out investigation and acceptance. Findings, in the dry land