小麦全生育期地膜覆盖与产量结构关系分析

A Relationship Analysis between Wheat All Growing-Season Film-Mulching and Yield Composition

长期以来 ,受传统耕作制度的影响 ,山西晋中地区冬小麦产量结构中的穗粒数及粒重受不利气候因素的影响 ,年际间变异较大 ,导致小麦单产水平低而不稳。随着地膜覆盖技术的大面积推广 ,小麦地膜覆盖技术所产生的效应 。

In a long period of time influenced by traditional farming systems, there is a considerable annual variation between seed number per ear and thousand kernel weight of winter wheat grown in Center Shanxi prefecture, which results a low and unstable yield per unit area. Since the extension of film-mulching in a large scale the problem has been solved effectively.