First, chase fast-effect fertilizer
After the frozen vegetables are recovered, the available nitrogen and phosphorus and potassium fertilizers can be topdressed in time to promote the recovery of the plants, enhance the body's viability, and reduce losses. Before the onset of low temperature, 0.2% to 0.3% of potassium dihydrogen phosphate aqueous solution may be sprayed 1 to 2 times to increase the cold resistance; or 400 to 500 kg of thin human and animal manure and water may be sprayed per acre to reduce the degree of ice formation in the soil. Reduce frost damage; or spread fire ash or plant ash between 2500 and 5000 kg in the vegetable plots to prevent cold and freeze, and increase potash fertilizer.
Second, spray water or inhibitors.
Sheltered vegetables and seedlings are subject to slight frostbite 2 to 3 days later, before and after noon, they must be shaded for a short period of time to avoid strong light and sudden loss of water. At the same time, a small amount of fresh water is sprayed at noon according to the humidity to increase surface temperature and humidity, and to prevent freezing. The tissue is dehydrated and dried, causing the frozen tissue to absorb water. Within a few days, less ventilation, appropriate increase in greenhouse temperature, in order to promote the restoration of vitality. In the 3 to 4 days before the onset of the cold wave, sunny days spray 30 to 40 times of the oil suppressant on vegetable plants to form a layer of invisible cold film on the leaves, which will help reduce the transpiration of the leaves and protect the body temperature of the vegetables. The purpose of cold protection.
Third, irrigation insulation.
Winter vegetables are mostly caused by water shortage because of the high specific heat of the air and heat dissipation. If the soil moisture content is moderate, the pores of the cultivation layer are finely cracked, the roots are not suspended, and the soil is kept warm, so that the root system will not be freeze-damaged. Therefore, pouring enough water before freezing or selecting good weather in winter (above 20°C) to fill enough water can prevent freezing injury. The irrigation of the frozen vegetables with horse water or water can increase the heat capacity of the soil and prevent the ground temperature from continuing to drop. At the same time, after water irrigation, the surface temperature of the near surface can be stabilized, and the average temperature can be increased, which is beneficial to the frozen vegetables. The natural recovery of the organization, thereby reducing the freezing injury. The water must be poured well and the field water should be able to seep through the day. After irrigating or watering, grasp the favorable period when the temperature rises, and keep the soil warm.
Fourth, block insulation.
Covering objects in the vegetable compartments can block cold currents and prevent frozen vegetables from direct sunlight.
Fifth, disease prevention and replanting.
Cold celery in the open can germinate new leaves. In order to reduce economic losses, cold-tolerant spinach, Chinese cabbage, radish vegetables, and lettuce can be planted after the weather has warmed up. It is best to carousel in small and medium sheds, early emergence, early growth, frozen vegetables susceptible to pests and diseases, you can use chlorothalonil and other fungicides, can also use the fumigation agent in the shed to kill bacteria.
Feature:
1. Made of high‑quality nitrile rubber material, which has excellent wear resistance and long service life.
2. The non‑slip texture on the surface provides ideal grip in dry and oily environments.
3. The interior of the gloves is made of cotton flocking, which provides users with a comfortable hand touch.
4. It can be widely used in agriculture and gardening, metal processing, pesticide industry, petroleum and gasoline refineries, etc.
5. The anti-permeability level of chemicals such as n-heptane, sodium hydroxide and concentrated sulfuric acid reaches level 2 or above (30 minutes), suitable for immersion operation.
Specification:
Item Type: Gloves
Material: Nitrile Rubber + Cotton Flocking
Uses: Agriculture and gardening/metal processing/peroxide/pesticide industry/petroleum and gasoline refineries/automotive and supply industries
Function: Protection from saturated hydrocarbons/inorganic bases/organic bases/inorganic acids
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