Detailed explanation purple yam planting technology! This kind of land can earn 20,000 yuan per mu!

Purple yam, also known as Purple Ginseng, Zihuai Mountain, contains a variety of vitamins, proteins, amino acids and trace elements, with high dietotherapy value, so many areas are growing, how to grow purple yam? What are the planting prospects?

1. Introduction of purple yam:

1. Where does Zishan medicine come from?

Purple yam is native to Pingyao and Jiexiu in Shanxi and is now distributed in North and Northwest China and Jiangxi and Hunan in the Yangtze River Basin. Among them, Lushan County in Ya'an, Sichuan Province is the main producing area.

2. What is the name of purple yam?

Purple yam, also known as purple ginseng, purple taro, traditional Chinese medicine known as Huai mountain, Huai yam, Huai yam and so on.

Second, how to grow purple yam?

1. Fine land preparation

Choose fields with convenient drainage and irrigation, fertile soil and deep soil layer, and it is appropriate to use sandy loam or loam with good permeability, deep ploughing and tanning, and soil preparation. The width of the border is 50cm, the height of the border is 30cm, and the width of the furrow is 30cm.

2. Seed potato treatment

Before sowing, the disease-free seed potato was selected, the epidermis soil was removed, the potato pieces with a mass of about 5cm and 40g to 50g were cut, mixed with lime or fire ash, and the cut was dried before sowing. When cutting pieces, use 75% alcohol to sterilize the knife to prevent virus (bacterial) infection.

3. Sowing at the right time

Sowing before and after the Qingming Festival, using single-plant single-row planting method. Plant spacing 30cm, row spacing 80cm, sowing 2700-2800 plants per mu. In the middle of the finished border, open the 20cm deep sowing ditch, first apply compound fertilizer to the ditch, cover the thick broken soil of 2cm, and then discharge the seed block, cover the fine soil, so that the seed spacing and soil cover are uniform. The amount of seed used is about 130kg per mu.

4. Black film covering

After sowing, cover the border with black film with a width of 100cm. When covering the film, the film should be taut, compacted around, and suppressed with clods every 2m on the film to prevent the film from being destroyed by strong wind. Break the film and expose the seedlings in time to prevent the leaves from being burned when they come into contact with the plastic film. Covered with black film, it has better warming and moisture retention than white plastic film, and the effect of weed control and weeding is better.

5. Set up a frame to draw the vine

Set up a frame to lead the vine to grow upward in time after emergence, and generally use a thin bamboo pole to build a herringbone frame with a height of 1.6 to 2.0m. The bracket should be firmly inserted and fastened to prevent it from being blown down by the wind. Chinese yam stem vines can generally stretch naturally on the shelf, in order to avoid stirring each other, can also be homeopathic guide stem vine uniform shelf.

6. Scientific fertilization

(1) apply sufficient base fertilizer: combine ploughing and sowing to apply base fertilizer. Before ploughing, the rotten rapeseed cake was evenly sprinkled on the surface, and then 30cm was turned deeply to make the soil fertilizer fully mixed; when sowing, 45% potassium sulfate compound fertilizer was buried in the sowing ditch according to the amount of 100kg per mu (see suitable sowing time for the method).

(2) topdressing in time: during the full shelf period of stems, high concentration compound fertilizer 25~35kg and urea were applied per mu for 10 kg. In the later stage of growth, 0.3% potassium dihydrogen phosphate solution and urea were sprayed two or three times to protect leaves from aging.

7. Irrigation and drainage

From April to June, in case of continuous overcast and rainstorm, the stagnant water of the production field should be discharged in time to prevent waterlogging. From July to August, in case of summer drought for more than 7 days, sprinkler irrigation or horse water should be irrigated in time to keep the soil moist.

8. Disease and pest control

Chinese yam is mainly harmed by anthracnose, brown spot, bacterial wilt, virus disease, grub, ground tiger and other diseases and pests. Focus on the prevention and control of anthracnose, at the initial stage of the disease, 75g per mu of prochloraz EC was used to spray water 50kg, and the serious cases were sprayed again every 7 to 10 days. Seed potato without virus is the main choice for prevention and treatment of virus disease. Seeds were mixed with 5% carbaryl granules or mixed with fine sand at sowing or seedling stage to control underground pests.

9. Timely harvest

At the end of October, the plant stopped growing and the underground tuber was fully mature. Fine weather was chosen to start harvesting, and all should be harvested before frosting. When harvesting, be careful not to hurt the tuber epidermis and not break the tuber.

Third, how much is the market price of purple yam per jin?

The wholesale price of purple yam in the market is about 5-8 yuan, and the retail price entering the supermarket is about 12-18 yuan.

How much do you earn from planting one mu of purple yam?

Purple yam per mu of land about 2000,500 plants, we calculate an average harvest of 2 jin, then we can also harvest 4000 jin, if the planting is definitely higher than this figure, according to the current wholesale price sales, can sell more than 20,000 yuan, if retail that must exceed 30000 yuan, the cost of planting purple yam is higher, the final cost of one mu of land is 3000 to 4000 yuan, and the cost of planting in a large area will be even lower. Well, it can be calculated from this that at least when there is no large-scale popularization, it is possible to earn 20,000 yuan per mu of land, of course, if you can sell it.