平度县是山东省小麦种植面积最大的县,常年面积在117万亩,总产4亿公斤左右。近年来,平均单产由1982年的145公斤,提高到1987年356公斤,并出现了10多万亩单产450公斤以上的丰产方。其大幅度增产的原因,主要是在技术上抓了五项改革。 一、改为乡镇统一供种合理布同 前几年,用种单位乱引乱繁,造成小麦品种“多而乱”。1984年全县种的小麦品种(系)32 Pingdu County is the largest wheat planting area in Shandong Province, with an annual area of ​​117 mu and a total output of 400 million kg. In recent years, the average yield increased from 145 kilograms in 1982 to 356 kilograms in 1987, and more than 10 million mu of high-yielding flats yielding more than 450 kilograms were produced. The reason for its substantial increase in production is that it has mainly scratched five reforms in technology. First, to the township for a reasonable supply of cloth with a few years ago, with the chaos of chaos disorderly species units, resulting in wheat variety “and chaos.” In 1984 the county species of wheat (lines) 32