What to Do When Sweet Potatoes Grow Too Vigorously After Rain? A Detailed Guide to Scientific Vigor Control
Deep plowing, soil improvement and bed formation The timing of sweet potato tuber formation, the number of tubers, and the speed and duration of tuber bulking are all directly related to how well the soil drains and aerates. If soil aeration is poor, insufficient oxygen will hinder root respiration and nutrient uptake, thereby inhibiting tuber bulking. Therefore, if you want sweet potatoes...
For vigorous aboveground growth of sweet potatoes, on a sunny afternoon from 3 to 4 p.m., spray 50 g of 15% paclobutrazol wettable powder mixed with 50 kg of water per mu, or spray 100 kg of a 500 mg/L ethephon solution per mu. Generally, 2-3 chemical control applications give better results. Lifting the vines and pinching off the growing tips can also control excessive aboveground growth of sweet potatoes to a certain extent.