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在小麦生产中无论单作还是间作都有大量边行,研究各种栽培因素对边行的影响,采取措施尽可能提高其增产作用有十分重要的意义.为此,我们于1975年在汲县孙杏树公社进行了调查,提出了增强优势的技术意见。在此基础上,于同年又安排了试验;1978年又对它们在生产中的实际效果进行了调查.一、边行优势的一般表现据调查,边行有效穗数常比中行多20—70%,穗粒数多15—25%,千粒重高2—9%,为中行产量的1.4—1.8倍,多的达2倍以上,表明在边行优势的形成中,穗数的增加起着较大的作用,穗粒数的作用占第二位,粒重的变化影响较小。
It is of great significance to study the effects of various cultivation factors on the sidelines and to take measures to increase their production as much as possible in the production of wheat, both for single-cropping and inter-cropping. Therefore, in 1975, Sun Xingshu commune conducted a survey, put forward the technical advice to enhance the advantage. On this basis, experiments were conducted in the same year, and their actual effects in production were investigated in 1978. I. General Performance of Borrowers According to the survey, the effective spikes of fronts are often 20-70 %, 15-25% more grains per spike, 2-9% higher grain weight, which is 1.4-1.8 times of the output of the Bank of China and more than 2 times more, which indicates that the increase of the spike number plays a more important role in the formation of edge superiority Large role, the role of grains per spike accounted for second place, less affected by changes in grain weight.