【摘要】 <正> 我国北方经营旱地农业有着悠久的历史,运用耕作栽培技术抗旱保墒是我国北方经营旱地农业长期积累下来的一条宝贵经验。历史证明,这条经验不但简便易行,而且在干旱半干旱地区具有明显的抗旱作用。因此,总结这一经验,使其为发展北方地区的农业生产服务,在今天仍有着重要的现实意义。为此,本文打算就这个问题,对历史上的抗旱保墒经验,作一简要的介绍,以供有关方面参考。更多还原

【Abstract】 The preservation of soil moisture to combat drought in dry-farming management in northern China has provided valuable historical experiences accumulated over a long period of time.Firstly,timely plowing,horrowing and pulverizing the soil were practised in order to enhance the water-retaining and water-storing ability of the soil, and alleviate the spring drought threat. Concrete measures taken were, to store autumn rain water for spring sowing, to recieve summer rain water for spring consumption and to roll the winter snow into the ground to prevent the spring drought.Secondly, cultural measures were employed to lighten the drought threat and increase the drought-resisting ability of crops. Concrete steps taken were: (1) anti-drought cultural methods such as ridge farming, pit farming, emphasis-farming, sand-farming ete.; (2) increasing the drought-resistance of seeds by using methods of immersing the seeds in "manure paste", sowing the millet seeds in winter and soaking the seeds in melted snow etc.; (3) preserving soil moisture by using cultivating methods such as the "deep-shallow-deep", the "pits digging" etc.更多还原