论文部分内容阅读
我们从一九六五年开始配制和推广维尔156,近几年每年配制双交种几十亩,提供维尔156种子几万斤。全大队玉米播种面积六五年是四百五十亩,七○年增加到五百六
We started formulating and promoting Weir 156 in 1965. In recent years we have formulated dozens of acres of double crossbreds in each of the past few years and provided tens of thousands of pounds of Weir 156 seeds. The area of corn sown in the entire brigade is 450mu in 655 and increased to 566 in 1970