黄土高原草肥覆盖农业耕作法的研究

• 作 者: 许卓民 祁占魁 苗元礼 张明义 崔鸣涛
• 机 构: 山西省农科院小麦研究所,山西省农科院小麦研究所,山西省农科院小麦研究所,山西省农科院小麦研究所,山西省农科院小麦研究所
• 出 处: 干旱地区农业研究
• 发表日期: 1986年02期
• 关键词: 黄土高原 耕作法 天然降水 迳流 旱农 蓄墒 肥力水平 小麦生长期 土壤蒸发 土壤含水量

干旱地区的核心问题是“缺水”。旱农耕作的中心在于如何保存和利用天然降水,纳雨蓄墒,减少蒸发,提高土地的抗旱能力。 几千年来,在我国黄土高原的广大地区一直沿用的旱农耕作法,是利用机械的力量使土地疏松、翻转,实现“以土养土”、“以土保墒”的耕作措施。但这些方法所能积存的天雨是有限的,超越限量,就形成迳流。而且随着耕翻,对水土保持有破坏的一面,耕

The core problem in arid areas is “water scarcity.” The center of dry farming is how to conserve and utilize natural precipitation, preserve moisture in rainy days, reduce evaporation and improve drought resistance of the land. For thousands of years, the dry farming method, which has been used in vast areas of the Loess Plateau in China, is to utilize the power of machinery to loosen and invert the land so as to realize the cultivation measures of “cultivating soil with soil” and “preserving soil moisture with soil”. However, these methods can accumulate rainy days is limited, beyond the limit, the formation of stagnant flow. And with the tillage, damage to soil and water conservation side, farming