In winter, when temperatures drop, vegetables encounter cold weather, frost, and other bad weather, often causing plants to die and die, often leading to greater economic losses. “Frozenness protection and disease prevention management are the key issues for winter vegetable management. Farmers must take precautionary measures to ensure the steady yield and high yield of vegetables.†said Zhang Enhui, associate researcher at Northwestern A&F University’s College of Horticulture.
Selected varieties of cultivating earth
Zhang Enhui said that when plants are planted in winter, varieties with strong cold-resistance should be used, and as much as possible, they should be planted in sunny plots. Therefore, the heat loss of the soil is slower, which is conducive to delaying the temperature drop on the ground and the plant cluster. At the same time, in combination with cultivator, the soil is cultured next to the root, which can loosen the soil and increase the soil temperature. It can also protect the root system and enhance the vitality of the root system. The cultivating soil should be carried out before the soil is frozen. The cultivating depth should be 7-10 cm.
Apply organic fertilizer to enhance coverage
Pre-frost pigs, cattle dung or soil fertilizer and other heat insulation farmyard fertilizer, circle cultivation in the roots of vegetables, can increase the soil temperature 2 to 3 degrees, topdressing should be carried out on a sunny day, 1000 to 1500 kg per mu. At the same time spray plant nutrient solution to improve the cold resistance of plants. In the afternoon before the onset of frost, straw, rice straw, etc. are used to cover vegetables and vegetables to reduce wind and cold mechanical damage. 100 kg of straw are used per mu. To sparsely disperse, must not cover all vegetables to prevent affecting photosynthesis.
Qinggou row fouling nitrogen sprinkling
Rainy weather, high humidity in the field, and lack of light affect the growth and development of vegetables. Drainage should be drained in a timely manner to ensure that the ditch and canal are unblocked so that the frozen water can be eliminated in time, which will help prevent freezing and cold of vegetables. This will help prevent flooding in the coming spring. . Before the advent of low temperatures, a thin layer of ash is sprinkled between vegetables and vegetable fields, which can prevent cold and freeze and increase nutrients. During the seedling period of vegetables, we must not apply nitrogenous fertilizer to prevent young plants from growing young, poor cold resistance, and early application of fertilizers to promote vigorous vegetable seedlings. Before low temperature comes, do not apply quick-acting nitrogen fertilizers. Apply phosphorus and potassium fertilizers once to enhance vegetable quality. Cold resistance.
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