旱地春小麦不同前茬土壤水分动态变化及利用效率的研究

本文通过春小麦不同前茬土壤水分动态变化及利用效率的研究,初步认为合理轮作倒茬不仅是培肥地力,解决旱农生产地区肥料不足的有效途径,而且是充分发挥自然降水,协调肥水关系,提高土壤水分利用效率增产粮食的有效措施。根据旱农生产区的自然特点和生产条件,从理论和实践上阐述了合理轮作倒茬对发展旱农生产的重要意义.

The Studies of Dynamics and Availability of Soil-moisture in Dryland Spring Wheat on Different Preceding—crop

Through the studies of dynamics and availobility of soil- mosture in dryland spring wheat on different fore-crop, we have got the preliminary conclusion that adaptive rotation and reverse-cropping not only is one of the effective ways of improving soil-fertility and solving fertilizer lacking in dry farming areas,but also is one of the effective measures for maximizing the availability of rainfall,coordinating the relationship between water and fertilizer,improving the availability of soil-moisture and raising the yield of food production According to the natural characteristics and productive conditions in dry farming areas,this article shows the importance of odoptive rotation and reverse cropping for developing dry farming production on the principle of theory with practice