During the rapid growth phase of sweet potatoes, it's recommended to apply a solution made from 25 to 30 times diluted superphosphate mixed with dry and pure plant ash leachate, or 15 to 20 times diluted leaf leachate. This should be done every 10 to 15 days, with 2 to 3 applications in total. The amount should be around 5 to 6 kilograms per square meter of soil. Applying this solution helps promote healthy root development and improves overall plant vigor.
After rainfall, when the soil is slightly moist, morning and evening sprays can effectively target underground pests that damage sweet potatoes. This natural pest control method not only protects the crop but also reduces the need for chemical pesticides. For even better results, you can mix in a magnesium sulfate solution at a ratio of 80 to 100 times diluted. This combination enhances pest control and boosts the sweet potato plants' resistance to insect attacks, leading to healthier and more productive harvests.
This approach is both environmentally friendly and cost-effective, making it an ideal choice for farmers looking to maintain high yields while minimizing chemical use. Regular monitoring of the plants and soil conditions will help ensure the best outcomes from this treatment.
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