近年来 ,随着农业生产中科技贡献率的不断提高 ,应用植物激素化学控制技术在农业科研领域中日益活跃 ,尤其是植物生长调节剂的研究和应用越来越被国内外的农业科研工作者所重视。 891促长素具有增强作物光合作用 ,增强酶的活性 ,促进干物质积累 ,提高作物产量 ,改善品质 ,促使 In recent years, with the contribution rate of science and technology in agricultural production increasing, the application of plant hormone chemical control technology in the field of agricultural research is increasingly active, especially the research and application of plant growth regulator more and more by domestic and foreign agricultural researchers Attention. 891 auxin has the ability to enhance crop photosynthesis, increase enzyme activity, promote dry matter accumulation, increase crop yield, improve quality, promote