小麦良种由于生产应用中的机械混杂,天然杂交和环境影响而种性退化。利用“三圃田”进行提纯复壮,不断保持和恢复良种的优良性状,是行之有效的方法。可以延长良种利用年限,高产稳产。为了测定经过“三圃田”提纯复壮的小麦原种的增产效果,我们在安西县环城、南岔、三道沟等社公农科站和县良种场设置了试验。试验所用种子共 Wheat seeds degenerate due to mechanical confusion in production applications, natural crosses and environmental impacts. It is an effective way to use “Sanputian” to purify and rejuvenate and keep and restore the fine traits of the elite. Can extend the useful life of high-yield, high and stable yield. In order to determine the yield-increasing effect of the wheat seeds purified and rejuvenated through “Sanputian”, we set up experiments in the social and agricultural stations and county breeding farms in Huancheng, Nancha and Sandougou in Anxi County. Test the seeds used in total