Now in July, it is the middle and late period of sweet potato growth, which is a rapid period for the growth of sweet potato chips. Since the leaf surface of the sweet potato has already undergone aging and the leaves have a yellowish condition, it is the key to spray the foliar fertilizer.
Sweet potato is the most favorite of potassium, phosphorus and potassium, followed by nitrogen. Therefore, it is necessary to apply high potassium fertilizer and use some urea. Spraying a new high-fat film while applying foliar fertilizer can increase fertilizer efficiency and improve foliar fertilizer utilization.
Especially in July this year, the temperature is relatively high, and there is more rain. Pay attention to clearing the accumulated water in time to avoid the influence of sweet potato on the taste of sweet potato.
The good management of the field during this period can greatly increase the yield of sweet potato. In order to make the sweet potato taste good, spray the selenium-rich foliar fertilizer. Our farmers' friends grow sweet potatoes not only to be productive, but also to taste good enough to sell for a good price. Therefore, when planting sweet potatoes, we must first select the sweet potato varieties according to our own situation, and apply fertilizers in a timely manner to ensure that the harvest season can achieve high yield and quality.
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