Sweet Potato Prices Per Jin in 2020 and High-Yield Fertilization Techniques

Sweet potato, also known as fan shu, gan shu, di gua and so on, is a widely cultivated food crop with a very strong ability to adapt to the environment. Besides being used as a staple food, sweet potato can also serve as a raw material for food processing, alcohol and manufacturing industries, and is also a very high-quality feed. So about how much is the price of sweet potato per jin in 2020? What fertilization techniques are needed to achieve high yields?

1. About how much is the price of sweet potato per jin in 2020?

In January 2020, sweet potato prices showed a trend of steady growth with slight increases, at roughly 1-3 yuan per jin, and prices are affected by many factors, such as variety, quality, specifications, yield and market conditions.

According to relevant websites, it can be seen that,

the sweet potato price at Henan Wanbang International Agricultural Products Logistics Co., Ltd. is 2.4 yuan per jin;

the sweet potato price at Hubei Wuhan Baishazhou Agricultural By-Products Grand Market Co., Ltd. is 1.05 yuan per jin;

the sweet potato price at Bayannur Sijiqing Agricultural Products Wholesale Market is 1 yuan per jin;

the sweet potato price at Wuzhong Xinxian Agricultural By-Products Market Co., Ltd. is 0.9 yuan per jin;

the sweet potato price at Xinjiang Haibao International Agricultural Products Logistics Trade City is 1.1 yuan per jin.

2. What fertilization techniques are needed for sweet potato to achieve high yields?

1. Look at the soil texture

Sandy soil has good aeration, but poor fertilizer and water retention, its fertilizer effect does not last, and it is prone to loss, so more organic fertilizer should be applied to improve the soil, quick-acting fertilizers should be applied in small amounts, and the number of topdressings should be appropriately increased. Clayey soil, due to poor permeability, breaks down fertilizer slowly, but has strong fertilizer retention, so the amount of topdressing should not be too small, and a moderate amount of extra topdressing can be applied, with the number of topdressings appropriately reduced.

2. Look at the seedling condition

During the branching and tuber-setting stage, the underground root network forms, the tubers begin to swell, and the ability to absorb fertilizer is strong. At this time, the sweet potato leaf area increases and photosynthetic efficiency improves, so topdressing should be applied early to achieve the goals of strengthening the plants, promoting tuber formation, and achieving fast and steady growth. For those with better growth, the amount of fertilizer can be reduced. If the nitrogen application for promoting seedlings or the cluster-forming fertilizer was relatively large, the tuber-promoting fertilizer can be just potassium fertilizer, with about 10 kg of potassium sulfate applied per mu.

3. Look at the timing

Tuber-promoting fertilizer is generally applied about 45 days after transplanting the vines. At this time, the aboveground part has already spread its vines down the ridges, and the tubers have basically taken shape. On one side of the ridge, use a plow to break open 1/3, then apply fertilizer immediately. Breaking the ridge and applying fertilizer can improve soil aeration and help the tubers swell. This fertilization is mainly potassium fertilizer; topdressing with potassium fertilizer can thicken the stems and leaf stalks, keep them in a tender state, and promote tuber swelling.

4. Look at the moisture

An important principle of sweet potato fertilization is that under good moisture conditions, the amount of nitrogen fertilizer should be controlled to avoid excessive vegetative growth of stems and leaves. In high-temperature and drought-prone areas from July to August, sufficient nitrogen fertilizer should be applied before the drought to promote the stems and leaves to close the ridges before the drought. In years with more autumn rain, the amount and frequency of topdressing can be appropriately reduced, and otherwise should be appropriately increased.

5. Sweet potato must not be given fertilizers containing chlorine, as it will reduce the starch content of the tubers and also make the tubers less suitable for storage.