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我省地处寒温带,气候低温冷凉、十春九旱,土壤冻结期长达6—7个月。因此任何土壤耕作措施都必须考虑到保贮春墒,促进耕层土壤熟化,用好表土(0—20厘米),改善底土(20—30厘米)的理化性质。这样的土壤耕作对我省防御低温冷害,促进作物早熟都有重要作用。为使土壤耕作措施与土性紧密配合,现提出几点意见,供参考。我省的耕地土壤大部份是好土,黑土约占50％,即使白浆土、碳酸盐黑土、风砂土
The province is located in the temperate climate, cold and cool climate, ten spring nine dry, frozen soil up to 6-7 months. Therefore, any soil tillage must take into account the storage of soil moisture, to promote the maturity of topsoil, make good use of topsoil (0-20 cm), and improve the physical and chemical properties of subsoil (20-30 cm). This kind of soil cultivation on the province to prevent cold damage, promote crop precocity has an important role. In order to make soil tillage measures and soil closely, I have made a few comments for reference. Most of the arable land in our province is good soil, with black soil accounting for about 50%. Even albic soil, carbonate black soil, wind sand