六十年代初期,通过研究,我们明确了冬小麦返青期深锄伤根的增产作用及其对植株的影响。七十年代初期,在此基础上,又开始了小麦深耘断根的研究,效果较好,仅1983年一年就在平原县推广了7.9万亩,增产小麦300多万斤。本文是多年来在这方面研究的总结。 Through the research in the early 1960s, we made clear the increasing effect of deep hoeing on winter wheat returning stage and its effect on plants. In the early 1970s, on the basis of this, the study on deep rooted cleavage of wheat began. The effect was good. In 1983 alone, 79,000 mu of land was popularized in Pingyuan County, and more than 3 million kilograms of wheat were increased. This article is a summary of research in this area over the years.