Cucumber belongs to more thermophilic vegetables. Winter planting should pay attention to the cold, you can take cover film, watering, fertilization and other measures to enhance the cold resistance of cucumber.
First, cover the film to prevent cold
Before the advent of cold air, scaffolding can be erected in time, and the film can be covered. The scaffolding can also be sealed with a film. If it is not convenient to build a field, film or straw should be used in time to cover the surface, and it can also be used to keep warm and cold.
Second, timely watering
Before the onset of the cold wave, the soil must not be watered once to pour water once, but there can be no accumulation of water in the field. If there is water, it will reduce its ability to resist cold. If it is covered by plastic film, drip irrigation technology can be used to supplement the soil moisture.
Third, the use of disease-resistant varieties and grafted seedlings
The use of relatively cold-tolerant cucumber varieties, and all the grafted seedlings planted with black-skinned squash as rootstocks, can effectively improve the plants' resistance to cold and disease, thereby reducing the losses caused by cold waves.
Fifth, rational fertilization
In order to ensure the plant's ability to resist cold, cucumber should be used for reasonable fertilization in autumn and winter. Organic fertilizer and phosphorus and potassium fertilizers should be applied mainly. Deep ploughing and soil preparation before planting should be carried out. After planting, 1.5 tons of high-quality organic fertilizer and 7.5 kg of urea should be applied per acre. , 13 kg of diammonium phosphate and 6 to 7.5 kg of potassium sulfate. In the middle of cucumber growth, 8 kg of potassium sulfate is applied with watering mu, and potassium dihydrogen phosphate may be sprayed on the foliage before the onset of cold wave to increase the ability of the plants to resist cold.
By adopting the above measures, as far as possible to meet the cucumber's growth needs of the temperature, promote the normal cucumber in the cold winter fruit.
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