How to grow sweet potatoes with the highest yield?

Sweet potato is one of people's favorite foods, which is very common in rural areas. But only by truly understanding the correct management methods of sweet potato planting can we achieve high quality and high yield of sweet potato. So how to manage sweet potato planting to achieve the goal of high and stable yield? Temperature, light

Sweet potato likes warm environment, but it is afraid of cold. Generally, when the local temperature is lower than 10℃, the root system will stop developing and growing. The optimum growth temperature of its root system is 17 ~ 30℃, so the soil temperature during planting is also very important for sweet potato. The higher the temperature, the faster the sweet potato grows, but the higher the temperature, the better. Generally, the low temperature of 2 1~26 degrees Celsius is the most suitable, and the sweet potato roots swell and grow.

Sweet potato is also a plant that likes full sunlight. In the case of sufficient light, sweet potatoes will be richer in color and thicker in stems and vines. This is more conducive to the absorption of nutrients by sweet potato competitors and promotes the rapid expansion of potato pieces. Therefore, when choosing a planting place, you must choose a sunny place. At least 10 hours of sunshine every day is more conducive to the development of roots.

Soil and water demand

Sweet potato is a kind of fertilizer-loving plant, and its demand for nutrients is also relatively high, especially during the swelling period of potato pieces. Besides nitrogen, phosphorus and potassium, there is a strong demand for nutrients such as iron, calcium and magnesium. Therefore, when applying base fertilizer, sufficient decomposed farmyard manure should be applied, and farmyard manure and soil should be fully mixed. Finally, furrows should be well furrowed and watered in time after planting.

Secondly, during the expansion of sweet potato, fertilization and watering should be continued to ensure its nutritional needs, and at the same time, pest control should be done well. If pests are found, such as leaf roller moth, weevil, scarab, cutworm, etc., drugs should be purchased in time for spraying control.

Finally, when harvesting, we should harvest in time. Harvest time is closely related to the yield, storage, processing and utilization of sweet potato. Generally, when the temperature drops to about 14℃, excavation will begin, and it is best to finish harvesting before the cold dew solar term. This sweet potato is more nutritious, storable and of better quality.