Watering vegetables in greenhouses means looking at the land and looking at the land. It also depends on the variety of vegetables. In general, the following points should be noted:
One is that watering should not be excessive. When the temperature in the greenhouse is low, the amount of watering should be small and the interval time should be long. Avoid flooding and flooding the vegetables, causing the roots of the vegetables to fall.
Second, the watering should not be arranged when the high noon temperature is high. Do not watering in the early morning and evening. The water temperature should be about 20°C. If the sky is cold, use well water as much as possible.
Third, the weather changed and watered. Sunny days, more pouring, cloudy days to less or not pouring, wind and snow cold days should avoid irrigation. When the weather changes from sunny to cloudy, the amount of water should gradually decrease, and the interval should be properly lengthened. From cloudy to sunny, the amount of watering should be from small to large, and the interval should be relatively shortened.
Fourth, the amount of water in different parts is different. When the temperature in each part of the greenhouse differs greatly, the amount of watering must also be different. The entrance and exit of the greenhouse and the central part of the greenhouse have relatively strong light, ventilation, high temperature, large amount of water evaporation, and watering capacity. Should be a bit more, north of the greenhouse, along the sides of the shed, the temperature is low, humidity is high, the sunshine time is short, the amount of watering should be less or not watered.
Fifth, different watering stages are different, the general watering should be controlled during the seedling stage, the middle and later stages of appropriate pouring, vegetables in the slow growth stage should be poured less, rapid growth period should be more pouring.
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