How much is the black potato per jin? Related planting techniques are attached

With the rise of agriculture in the park and sightseeing picking agriculture in various places, the demand for characteristic potato varieties gradually increases. Black potatoes have large and small sizes, smooth skin, not only black purple skin, but also purple flesh color. Black potato is a new variety of colorful potato with nutrition, health care and ornamental. Besides fine, fragrant and flour, it has bright color and unique appearance, and has the effects of preventing cancer and beautifying. How much is a pound of black potatoes? What are the key points of related planting techniques?

How much does a black potato cost?

Black potatoes and potatoes usually seen have obvious differences, black potato appearance is black purple, shiny, cut black potato interior is dark purple, black potato appearance is very similar to purple potato, but the two are not a vegetable variety. Black potatoes are divided into black beauty potatoes and black diamond potatoes. The price of black beauty potato is about 3-5 yuan, and the price of black diamond potato is about 6-8 yuan.

II. Black potato related planting technology

1. Germination and cutting

20-30 days before sowing, the selected seed potatoes are evenly placed under the environmental condition of 20 DEG C, water is sprayed properly, and grass is used for shading. When the sprouts grow to the size of soybean grains, the seed potatoes are placed in the sun at a warm place to make the seedlings green and strong. 1-2 days before sowing, the seed potatoes are cut into pieces, and the weight of each seed potato is about 25 grams. Cut small pieces of seed potatoes vertically, each piece should have a strong bud at the top; cut large pieces of seed potatoes from the tail, eliminate weak buds, arrange them according to the order of bud eyes, cut obliquely from the top, and finally divide the top into two.

2. Soil preparation and sowing

Black potato growth period is short, fertilizer needs more concentrated, spread high-quality organic fertilizer, diammonium phosphate and urea, fertilizer after the soil will be deeply ploughed. Black potato should be planted sparsely and not densely. Furrows should be opened according to row spacing of 70 cm and groove depth of 5 cm. Phoxim granules should be applied to control underground pests such as cutworm when furrowing. After sowing, it can be pressed in time and the ridge shape can be adjusted. At the same time, herbicide and new lipid film can be sprayed for mixed control, and plastic film can be covered.

3. Field management

After the seedlings are unearthed, they should break the membrane and release the seedlings in time, and seal the seedling holes with wet soil. When the seedlings out of Qi, in order to promote early seedling trees, can be foliar spraying fruit strong Tiling; in flowering period, timely removal of flower buds. In order to increase the percentage of big tubers, Diguozhuangdiling can be sprayed on the leaves. The main disease of black potato is late blight, and the pests are aphids and ladybugs. 64% Alumen 600 times solution + New lipid membrane can be used to control late blight, and 18% Lesben 1000 times solution + New lipid membrane can be used to control aphids and ladybugs.

4. Timely harvest

According to the market supply and marketing situation timely harvest planing, harvest process to minimize mechanical damage, so as not to affect the quality of goods.