Six Attentions for Watering Cucumbers in Greenhouse
Pay attention to the growth of cucumbers in the greenhouse. Usually, when the cucumbers in the greenhouse are short of water, the leaves will wilt, the growth will be weakened, and more diseases will occur. At this time, you should add water in time.
Pay attention to the moisture content and check the soil moisture content. If the cucumber soil in the greenhouse is watered when it is not dry, it will not only increase the ground temperature, but also easily lead to poor soil permeability, resulting in hypoxia in the root system, resulting in the phenomenon of yellow leaves appearing in the roots.
Pay attention to the weather and choose sunny days for watering. Ensure that there are two to three days of sunny days after watering to avoid rainy weather after watering, which will increase the humidity in the shed, lower the ground temperature and cause more diseases.
Pay attention to the ground temperature. The average daily ground temperature for cucumber growth in the greenhouse is about 22℃, and the ground temperature in the greenhouse is mostly 15℃～20℃. If watering is excessive or the watering time is wrong, the ground temperature will drop rapidly, causing root damage and endangering the upper part of the plant. Therefore, low-temperature watering is carried out in the morning after the grass thatch is opened.
Pay attention to mulch mulch mulch can not only reduce ground water evaporation, maintain soil moisture, reduce watering times, reduce air humidity, and reduce disease occurrence, but also increase ground temperature and speed up cucumber growth in greenhouses.
Pay attention to water management. After watering, the temperature is raised to about 40℃ at noon in the first two days, and the shed is stuffy for one hour to increase the ground temperature in the shed. Then increase the amount of ventilation and reduce the humidity in the shed. In view of the susceptible disease of cucumbers in the greenhouse, spray prevention to reduce the occurrence of pests and diseases.
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