Method for preventing spindling of amorphophallus bulbifer and application thereof

The invention belongs to the technical field of konjak planting, and particularly relates to a method for preventing excessive growth of amorphophallus bulbifer and application of the method. According to the method, the spraying time of the plant growth retardant is limited, the plant growth retardant is sprayed to amorphophallus bulbifer leaf crowns in the leaf expansion stage of the amorphophallus bulbifer and before the amorphophallus bulbifer does not begin to bear bulbils, biosynthesis of gibberellin in plants can be inhibited so as to shorten the elongation and growth of amorphophallus bulbifer stems, excessive consumption of vegetative growth is reduced, accumulation of reproductive growth nutrients is facilitated, and the growth rate of the amorphophallus bulbifer is increased. The main stems are thickened, lodging of the amorphophallus bulbifer is prevented, rapid development of underground corms is facilitated, and the yield of the corms is increased. The problems that the photosynthetic area of am