农业是我省经济发展的基础 ,尤其是旱作农业的持续发展是我省农业面临的重大问题。2 1世纪 ,旱作农业大规模的发展和粮食产量的提高要依靠新的农业科技革命 ,这不仅包括基础研究的创新 ,还包括应用研究和技术推广方面的突破。抗旱作物及品种配置作为旱农增产技术的支柱之一 ,长 Agriculture is the basis of economic development in our province, especially the sustainable development of dry farming is a major problem facing agriculture in our province. In the first century, the large-scale development of dry farming and the improvement of grain output depended on the new revolution in agricultural science and technology, which not only included the innovation of basic research but also breakthroughs in applied research and technology promotion. Drought crops and variety configuration as a pillar of dry farming yield technology, long