Sweet Potato Underground Pest Control
2020-04-21 14:07:59
During the rapid expansion of sweet potato, apply 25-30 times of superphosphate once per 10-15 days to mix with dry and pure plant ash to dilute the clarified solution, or immerse the clarified solution in 15-20 times of tobacco leaf, etc., and continuously 2-3 times. Each time about 5-6 kg per square meter soil is appropriate. When the soil is slightly wet after the rain, or in the morning or in the evening, it can kill the underground pests that harm sweet potatoes and protect the sweet potatoes. If 80-100 times of magnesium sulfate aqueous solution can be added, the effect is better, which can not only improve the control effect, enhance the insect-resistant ability of sweet potato, but also promote the rapid expansion of sweet potato, increase starch accumulation, obviously increase the yield, and improve the quality. Extended storage.
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