蚕豆具有无限分枝的习性,冬前分枝有80%左右能够结荚,立春后的分枝大多数不能结荚,而且消耗养分,造成光照条件恶化,致使下部花荚大量脱落,从而容易产生病害,影响千粒重。因此必须对蚕豆的分枝及时修整。 Broad beans with unlimited branching habits, pre-winter branches about 80% can pod, most of the branches after the beginning of spring can not pod, but also consume nutrients, resulting in deterioration of light conditions, resulting in a large number of lower flowers off, which is prone to Disease, affecting thousand grain weight. Therefore, the branches of Vicia faba must be trimmed in time.