Pay attention to the growth of cucumber in the greenhouse. Generally, when the cucumber in the greenhouse is short of water, the leaves will be wilted, the growth will be weakened, and the disease will occur more. At this time, the water should be replenished in time.
Pay attention to the soil moisture. If the soil in the greenhouse is not drought, it is not only unfavorable to increase the ground temperature, but also easily lead to the deterioration of soil permeability, resulting in the lack of oxygen in the roots, causing roots and yellow leaves.
Pay attention to the weather and choose to water on sunny days to ensure that there are two to three days of sunny after watering to avoid rainy weather after watering, resulting in increased humidity in the shed, lower ground temperature and more diseases.
Note that the average daily ground temperature for greenhouse growth in greenhouses is about 22 °C, and the ground temperature in the greenhouse is mostly between 15 °C and 20 °C. If the watering is excessive or the timing of watering is incorrect, the ground temperature will drop rapidly, causing root injury and endangering the plant shoots. The growth, therefore, low temperature watering is best done after the grass is opened in the morning.
Note that covering the mulch covered with mulch not only reduces surface water evaporation, maintains soil moisture, reduces watering times, reduces air humidity, reduces disease occurrence, but also increases ground temperature and accelerates cucumber growth rate in greenhouses.
Pay attention to the water after the management of watering, the first two days to warm up to about 40 °C at noon, shack for one hour, improve the ground temperature in the shed. Then increase the ventilation to reduce the humidity inside the shed. In order to reduce the incidence of pests and diseases, it is easy to treat cucumbers in greenhouses.
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