通过三年对武威市平川灌区三年三区轮作制中土壤养分的研究,总结出小麦套草木樨,对提高土壤肥力具有明显的作用:土壤有机质、全氮、速效养分均呈递增的趋势,相应地改善了土壤物理性质,协调了水、肥、气、热四大因素。武威平川灌区推行麦田套种草木樨是增产增收、生物养地的最佳种植制度之一. After three years of research on the soil nutrients in the rotation system of three-year and three-districts in Pingchuan Irrigation District in Wuwei City, the conclusion was drawn that the overtopping of wheatgrass has a significant effect on soil fertility: the content of soil organic matter, total nitrogen and available nutrients all showed an increasing trend, Correspondingly, the soil physical properties have been improved and the four major factors of water, fertilizer, gas and heat have been coordinated. Wuwei Hirakawa irrigation areas to promote the implementation of wheat field intercropping grass mulberry is the increase of income, biological culture of one of the best planting system.