毛主席教导我们:“种子搭配的问题(即在一个地域内,一种作物要有几种品种同时种植)各地可以进行研究”。中央农林部转发的《全国小麦种子座谈会议纪要》指出:对现有品种的普查、鉴定和整理工作要在省、地革委会的统一领导下,以县为单位 Chairman Mao taught us: “The problem of seed collocation (that is, the cultivation of several varieties of a single crop in a single area) can be studied all over the world.” The “Summary of National Wheat Seeds Symposium” transmitted by the Central Ministry of Agriculture and Forestry pointed out that the general survey, appraisal and arrangement of existing varieties should be conducted under the unified leadership of the provincial and revolutionary committees and committees and by the county