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天水水土保持推广站几年来试验证明了垄作区田是在35%以下的坡地上很有效的耕作方法。在同样的条件下,大葱比平作增产35%,玉米增产10%,洋芋增产20%。兹将庄浪县一区义泉乡的作法及收
Experiments conducted by Tianshui Soil and Water Conservation Promotion Station over the past few years have proved that ridge-cropping is a very effective farming method for slopes below 35%. Under the same conditions, the scallion produced 35% more yield than the flat crop, the corn yield increased 10% and the potato yield increased 20%. Hereby Zhuanglang County Yiquan Quan practice and income