How much does sweet potato cost per jin? A detailed look at six cultivation techniques for this longevity food

When sweet potato is mentioned, everyone is surely familiar with it. It not only has high nutritional value, but is also easy to grow and low in investment cost, so it is planted in many regions. So how much does sweet potato cost per jin? What are the cultivation techniques?

1. Introduction to sweet potato

1. What is sweet potato also called?

Shan yu, shan yao, di gua, bai shu, tian shu, gan shu, jin shu, hong shan yao, zhu shu, yu zhen shu, fan ru, meng fan shu, a e.

2. Where does sweet potato come from?

Sweet potato has many places of origin and is distributed both domestically and abroad. Abroad, it is mainly distributed in South America, the Greater Antilles and the Lesser Antilles. Domestically, it is mainly distributed in Beijing, Liaoning, Heilongjiang, Harbin, Henan, Hebei, Shandong, Guangdong, Fujian, Hunan, Hubei, Yunnan, Guizhou, Sichuan and other places. It is distributed in almost all tropical and subtropical regions of the world.

3. What varieties of sweet potato are there?

(1) By flesh color, they can be divided into: white-fleshed sweet potato, purple-fleshed sweet potato, yellow-fleshed sweet potato and red-fleshed sweet potato.

(2) By vine length, they can be divided into: long-vine sweet potato and short-vine sweet potato.

(3) By taste, they can be divided into: fruit-type sweet potato, glutinous sweet-type sweet potato and soft sweet-type sweet potato.

(4) By use, they can be divided into: vegetable sweet potato, medicinal sweet potato, fresh-eating sweet potato, fruit-type sweet potato and fodder sweet potato.

2. How much is the market price of sweet potato per jin?

The market price of sweet potato is relatively affordable, generally 0.5-1.8 yuan per jin, but because there are many varieties and a wide range of growing regions, market prices vary from place to place. For example, Longshu No. 9 sweet potato in Leping City, Jingdezhen, Jiangxi has a market price of about 0.5-0.8 yuan per jin, and the market price is stable; Yanshu 25 sweet potato in Wolong District, Nanyang City, Henan Province has a market price of about 1-1.8 yuan per jin, and it has risen slightly recently, so the specific price still needs to be checked at the local market. Recent market prices and trends in some areas are as follows:

3. What are the sweet potato cultivation techniques?

1. Seed selection

When selecting seeds, try to choose seedlings that are large and have many buds, and be sure to check whether the surface of the sweet potato has defects or has been bitten by insects, so as to improve the later survival rate.

2. Sowing

(1) Seed treatment: Soak the seed potatoes in a Duolingjun solution for more than ten minutes to prevent infection by pathogens.

(2) Sowing method: Place the seed potato with its head facing up, then put it diagonally into the soil, and cover it with a small amount of dried grass, rotten wood or poultry manure, then slowly cover it with soil. In places where the temperature is relatively low, a layer of film can be covered on the soil surface to promote seed potato sprouting.

(3) Cutting seedlings: When sweet potato seedlings grow to 30-40 cm, use sterile scissors to cut off the young seedlings, then insert them into the seedling field to let them grow. When cutting seedlings, try to use three leaves as one section, so that the seedlings can be fully used. At the same time, when inserting them, it is best to space each plant about 30 cm apart.

3. Reasonable fertilization

After the seedlings are inserted and planted, an appropriate amount of poultry manure water needs to be applied to promote root and seedling growth. After the seedlings survive, apply a small amount of urea to make the seedlings grow evenly. When they reach the fruit-strengthening stage, apply an appropriate amount of potassium fertilizer or boron fertilizer to promote fruiting.

4. Vine training

After the seed potatoes have grown for a period of time, they will climb everywhere. At this time, the vines can be trained to prevent nutrients from being consumed by unnecessary branches and leaves. When training the vines, try to do it in one direction to facilitate later harvesting. In addition, when training the vines, remove some excess branches and leaves to prevent nutrients from being absorbed.

5. Pest and disease control

During the growth of sweet potato, various pests and diseases such as leaf rollers, field mice and aphids will appear, so preventive measures should be taken during management. If disease has already occurred, trichlorfon solution can be used for spraying and killing; if field mice appear, trapping can be used to catch and kill them.

6. Harvesting

When sweet potatoes grow to September, they can be harvested. When harvesting, first cut off the vines, then use tools to dig out the sweet potatoes.

4. When is the best time to plant sweet potato?

1. Seedling raising time: mid-February to mid-April

2. Spring sweet potato planting time: mid-to-late April to mid-to-early May

3. Summer sweet potato planting time: early June

In summary, sweet potato is very easy to plant, and when planting, as long as you master basic management work such as planting time and fertilizer management, you can achieve a yield of ten thousand jin per mu.