本文介绍西北黄土区几个试点的土壤机械组成、土壤农业水文特性、土壤比重和结构性等的试验数据,耕作深度、耕作速度、土壤水份等对犂阻力及碎土程度的影响,土壤硬度和紧实度与湿度间的关系,以及不同类型犂的阻力比较等。 This paper introduces the experimental data of soil mechanics composition, agricultural and hydrological characteristics of soil, soil specific gravity and structure, soil depth, tillage speed and soil moisture on plow resistance and soil crushing degree of several pilots in the Loess Plateau of Northwest China. And the relationship between compaction and humidity, as well as the resistance of different types of plow comparison.