When is the greenhouse vegetable watered in winter? In winter, the temperature is low. Do not water in the afternoon or rainy days. The best time for watering is on a sunny morning. During this time, the difference between water temperature and low temperature is small. After watering, the vegetables will not be stimulated. There is plenty of time to adjust. For the winter vegetable watering work, Xiaobian will explain in detail below.
First, watering method
When the greenhouse is watered, it can be used under the mulch under the mulch, and the condition can be selected to penetrate under the membrane, which can effectively prevent the occurrence of diseases.
Second, scientific water irrigation
Winter vegetable watering is generally irrigated with plastic film, which can reduce water evaporation, reduce the humidity in the air, and effectively avoid the growth of bacteria.
Third, the amount of water to be controlled
The amount of water in the greenhouse should not be too much, otherwise it is easy to reduce the soil temperature, resulting in weakening of the roots of the vegetables, increasing the air humidity, resulting in greenhouse effect in the greenhouse, which is very unfavorable for the growth of greenhouse vegetables. The specific watering amount of greenhouse vegetables depends on local weather conditions and vegetable growth.
Fourth, pay attention to the ground temperature
The average low temperature of greenhouse vegetables is in the range of 18-22 degrees. When the temperature is relatively low, corresponding insulation measures should be taken to avoid freezing damage.
Five, cover the film
Greenhouse vegetables cover the mulch, which can reduce water evaporation, not always watering, but also increase soil temperature, reduce the occurrence of pests and diseases, and help vegetables grow faster and healthier.
Sixth, regulate water temperature
When greenhouse vegetables are watered, the water temperature should not be too low. Generally, well water with a relatively high water temperature is used.
Seven, after the pouring of water after the work
After watering the greenhouse vegetables, first raise the temperature to 40 degrees, suffocate the shed for 60 minutes, increase the low temperature, then increase the ventilation appropriately, reduce the humidity of the greenhouse, and at the same time do a good job of vegetable pest control measures.
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