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大田作物的后期倒伏分茎倒、根倒、茎折三种类型。由于倒伏类型的差异,其产量损失程度也不同。一般说,茎倒仅仅是作物茎秆倾斜,待天气好转,生长一段时间之后,会自行恢复直立状态,因此,这种倒伏产量损失较轻。茎折倒伏一般很难恢复生长,也不易采取挽救措施,作物产量损失较大。而根倒会使作物侧根拔起,茎秆倾伏角度较大,甚至平铺地面,叶片、穗子贴地,水分降低慢,受光少,光合强度减
Field crop late fall sub-stem down, root down, stem off three types. Due to differences in the type of lodging, the degree of yield loss is also different. In general, the stalk is only tilted crop stalks until the weather improves, after a period of growth, will restore its upright state, therefore, this lodging yield loss less. Stalk lodging is generally difficult to restore growth, it is not easy to take rescue measures, crop yield loss greater. The roots will uproot crop side of the root, stem piling larger angle, or even tile the ground, leaves, ears affixed to the ground, the slow decline in water, less light, reduced by photosynthetic