What fertilizer is best for sweet potatoes?

Sweet potato fertilization time

The period from late August to early October in autumn is the spring and summer root expansion period of sweet potatoes. This period is the critical period for the formation of its yield and the period with the highest nutrient demand.

What fertilizer to use for sweet potatoes

The guarantee for the growth of sweet potatoes is sufficient basal fertilizer, especially the application of farmyard manure, which can cultivate soil fertility, improve the soil's aggregate structure and physical and chemical properties, and ensure a sufficiently high yield of sweet potatoes and improve the quality of sweet potatoes.

Sweet potato fertilization method

When fertilizing sweet potatoes, you can spray the diluted fertilizer on the leaves of the sweet potatoes. It is best to do it in the evening on a sunny day, and avoid doing it on rainy and cloudy days. Spray it about once every 10 days, and twice within a period of time is enough.

Sweet potato fertilization precautions

In the second half of the growth of sweet potatoes, the main focus is on developing tubers. At this time, you should pay attention to the amount of fertilizer used. The amount of nitrogen fertilizer needed is very small, while phosphorus and potassium fertilizers are relatively large. Therefore, you should mainly use phosphorus and potassium fertilizers and reduce the amount of nitrogen fertilizers, which can make the sweet potatoes swell rapidly.