1. Application of swelling fertilizer: To promote healthy growth during the tuber swelling stage, apply 15 kg of superphosphate and 10 kg of ammonium sulfate per acre. In addition, spray a solution containing 0.3% potassium dihydrogen phosphate and 1% urea to provide essential nutrients directly to the leaves. This foliar feeding helps enhance root development and improve overall plant health.
2. Drainage and waterlogging management: During the period when sweet potato roots are swelling, excessive rainfall can lead to waterlogging, which hampers root development and increases the risk of diseases. It's important to regularly dredge and maintain field drainage systems to ensure proper water flow and prevent soil saturation. Good drainage is crucial for maintaining optimal growing conditions.
3. Leaf roller moth control: The sweet potato leaf roller moth can cause severe damage by feeding on the entire foliage of the plant. It's best to take action before the larvae reach the third instar stage. Apply a 32% emulsifiable concentrate (EC) at a dilution rate of 3200 times. Spraying should be done in the late afternoon, after 5 o'clock, when the temperature is cooler and the pests are more active. For fields with high infestation levels, it's recommended to repeat the spraying every 3 to 5 days to effectively manage the population and reduce crop damage.
This detailed approach ensures that sweet potato crops receive the right nutrients, protection from water stress, and effective pest control, leading to better yields and healthier plants.GMP ATS Injection, Tetanus Antitoxin, Tetanus Toxoid ,Tetanus Antitoxin Injection, Antitetanus, Refined Tetanus Antitoxinsupplier in China
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