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中耕培土为玉米栽培过程中田间管理之中心环节。随着生产上机械化栽培之推行和科学研究的进展,不少研究工作者对中耕培土的作用提出了不同的意见。根据我们的初步试验结果,经过统计分析后表明,浅中耕和深中耕培土处理间的产量差异不大。浅中耕处理的三个供试验品种(白鹤、英粒子和双交种6122)的根系在地表层土内横向发展方面,一般都超过深中耕培土的处理,而深中耕培土的玉米根群呈圆锥形。浅中耕处理之植株,气生根出现地表面的时期比深中耕培土者来得早,但深中耕培土处理的气生根入土层次较淺中耕者多。因此对于白鹤、英粒子来
Cultivation of soil for the cultivation of corn in the field of field management center. With the implementation of mechanized cultivation in production and the progress of scientific research, many researchers put forward different opinions on the role of cultivating soil and cultivating soil. According to our preliminary test results, after statistical analysis showed that there was no significant difference in yield between shallow cultivation and deep cultivation. The roots of three tested cultivars (Crane, Engle and Bipolaris 6122) under shallow-tillage treatment generally exceeded those of deep-tillage and tillage soil in the horizontal development of surface soil, whereas those of deep-tillage and tillage were conic shape. The plantings of shallow-tillage treatments showed that aerial roots appeared earlier than those of deep-tillage cultivated ones, but those of deep-tillage cultivated soil had more aerial-rooted cultivars. Therefore, Crane, British particles to