Pay attention to the growth of cucumbers in greenhouses. Usually, when cucumbers in greenhouses are short of water, the leaves will be wilting, the growth will be weakened, and more diseases will occur. At this time, the water should be added in time.
Pay attention to soil moisture depends on soil moisture. If the soil is not watered when cucumbers are grown in greenhouses, it is not only unfavorable to increase the ground temperature, but also can easily lead to the deterioration of soil permeability, resulting in lack of oxygen in the roots, resulting in rooting and yellow leaves.
Pay attention to the weather before watering must watch the weather forecast, choose sunny watering, ensure that there is 2 to 3 days of sunny days after watering, in order to avoid the rainy weather after watering, resulting in increased humidity in the greenhouse, lower ground temperature, disease More hair. The current season needs more attention. In the first two days after the sunny day, it is not suitable for watering. The temperature of the shed should be raised first to make the cucumber in the greenhouse return to normal and water again.
Note that a suitable daily average soil temperature for greenhouse cucumber growth is about 22°C, and the ground temperature in the shed is often 15°C to 20°C. If watering is excessive or the timing of watering is not right, the ground temperature will drop rapidly, causing root injury and endangering the plants. The growth of the above ground, therefore, the low temperature watering is best carried out after the open grass in the morning.
Note that covering the film with plastic film can not only reduce the evaporation of ground water, maintain soil moisture, reduce the number of watering, reduce air humidity, reduce the occurrence of diseases, but also increase the temperature and speed up the growth rate of greenhouse cucumber. Spring greenhouse cucumber watering, generally follow the principle of no shortage of water, rather dry not wet, to maintain greenhouse cucumber soil moisture content of about 60%, to prevent excessive frequent watering, avoid flooding irrigation. Excessive watering tends to lower the temperature in the shed and increase soil temperature, which is detrimental to the growth of vegetables. To take a small water pouring, or point by watering the kettle.
Pay attention to the management of watering after watering. Warm up to 40°C at noon the first two days, and drench the shed for 1 hour to increase the temperature in the shed. Then increase the ventilation and reduce the humidity in the booth. In response to the easy incidence of cucumber in greenhouses, spraying prevention to reduce the occurrence of pests and diseases.
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