Plastic film ridging technology of potato
After sowing the seed potato, flatten the ridge surface with a flat spade, which is beneficial to weeding and plastic film mulching. 667 square meters with herbicide Duer 80 ml of water 40 kg spray on the ridge surface, the herbicide can not be sprayed at once, should leave a small part, and then spray the furrow after covering the film. To prevent growing grass, 667 square meters need 90 cm wide microfilm 4 kg. When covering the film, be sure to seal both sides and ridges with wet soil, and seal a horizontal line with wet soil every 6 to 7 meters on the ridge surface to prevent the strong wind from blowing up the plastic film and affect the heat preservation effect.
After the emergence of seed potato, first use a knife to break the film 5 cm wide, break the film to refine the seedlings, must not lead the potato seedlings out, otherwise vulnerable to frost. Generally, after refining the seedlings for 10 or 15 days, draw the seedlings out by hand, and then seal the broken film with wet soil. When there is a drought in March, it should be watered in time. In the first ten days of March, 667 square meters sprayed 40 kilograms of water with 30 grams of paclobutrazol to prevent excessive growth. If there are diseases and insect pests, they should be controlled in time.
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Value-added processing Technology of Potato starch waste liquid
The waste liquid of potato starch production is rich in nutrients, which is a pity to be discarded and pollutes the environment. People try to process the potato starch waste liquid and use it in the food industry, but it is held back because the treated starch juice has a peculiar smell of potato. In order to make effective use of potato juice, a new process using glucose invertase has been developed in recent years, which not only effectively removes the unpleasant taste in the juice, but also contains rich nutrients such as sugars, amino acids, organic acids and minerals.
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Symptoms and Prevention of low temperature chilling injury in Potato
During plant growth or during stem storage, if the air temperature or soil temperature is too low (above freezing point), the plant will produce chilling injury. The degree of chilling injury varies with the temperature. 1. The symptom of the leaf is in the seedling stage, and the leaf wilts and collapses rapidly after the plant is damaged by freezing. When the qi warms up, the affected area becomes flooded and browns after death. But if the plant is only damaged by scourge. the above symptoms will not occur. Chilling injury occurs in the seedling stage in early spring. The symptoms appeared at the top of the seedlings and appeared yellowish to light brown at the base of the young leaves. When
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