How to Water Vegetables in a Greenhouse? A Detailed Guide to the Latest Practical Methods
Greenhouse vegetables are the most commonly used growing method today; they can both increase vegetable yields and allow off-season cultivation of vegetables, so that vegetables normally available only in a specific season can be eaten all year round. So, do you know how to water greenhouse vegetables? Let's take a look.
1. Watering Principles
When watering greenhouse vegetables, pay attention to climate changes. In summer, temperatures are high and sunlight is intense, so watering must be done reasonably to help them safely get through the summer, which plays a decisive role in the market yield and quality. Therefore, during high-temperature periods, water frequently; but in the low-temperature seasons of winter and spring, watering must be done with care: water on sunny days, do not water on cloudy or rainy days; when watering on sunny days, do it in the morning, not in the afternoon; avoid flood irrigation, and use drip irrigation under mulch.
2. Watering Methods
Watering should be based on how dry or moist the soil is; do not water if it is not dry. Before watering, grab a handful of soil from 10 cm deep with your hand and squeeze it into a ball; if it does not crumble after being released, it means there is no lack of water, but if it crumbles, it means water is lacking and you should water promptly. When watering, never use flood irrigation; water less but more often, so that soil waterlogging does not cause vegetable root rot, especially in winter and spring. Watering should be timed according to weather changes; it is best to water on sunny days, and the watering time should be chosen in the morning, preferably not later than 11 o'clock, so that the midday sun can evaporate some of the water.
3. Precautions for Watering
Pay attention to the timing of watering. The reason for choosing to water on a sunny morning is that at this time the soil temperature and water temperature are close, and after watering the roots adapt quickly; watering in the afternoon will cause a sudden change in soil temperature and affect the physiological functions of the roots, while watering in the afternoon, evening, or on rainy and snowy days is not advisable. Pay attention to the amount of water; flood irrigation will rapidly lower the soil temperature, cause fertility loss, affect the roots' absorption of fertilizer, and affect the normal growth and development of the plants. After watering in winter and spring, restore the soil temperature as soon as possible, close the greenhouse promptly, and increase the room temperature; after the soil temperature rises, ventilate promptly to remove moisture, so that the temperature and humidity drop to the appropriate range.
The above is an introduction to how to water greenhouse vegetables. We hope it helps you. To learn more related knowledge, please stay tuned to us.