目錄
Growing vegetables in a greenhouse is a choice many people make. It may not sound complicated, but in fact, there are many details that need attention.
How to irrigate vegetables in a greenhouse properly is a very important factor in promoting both higher yields and better quality. This article will provide you with some practical tips.
Irrigation Timing
The choice of irrigation timing should be based on the weather. 一般來說, it’s best to water the vegetables in the greenhouse on sunny days, and not on cloudy days. 也, it’s better to water in the morning, when the humidity inside the greenhouse is not high, and vegetables are less likely to suffer from pests and diseases.
In the summer at noon, especially when the weather is extremely hot, do not water. Because at that time, the vegetables are under high temperatures and constantly evaporating water, and their roots are relatively fragile. Watering suddenly may backfire.
簡而言之, the watering time should be chosen appropriately according to the weather.
Irrigation Water Temperature
For greenhouse vegetable irrigation, it’s recommended to use well water as the source, because the temperature of well water is relatively less cold. Be sure not to use cold water directly from rivers, reservoirs, or ponds.
Irrigation Amount
If the watering amount is insufficient, the vegetables will wilt, and the leaves will turn yellow. If the watering is too much, it will cause oxygen deficiency in the vegetables and root rot. 所以, the amount of water must be appropriate, and the watering interval must also be well controlled. 例如, when the indoor temperature is low and the evaporation rate is slow, the watering amount can be reduced, and the interval can be longer. When the evaporation rate inside the greenhouse is high, the watering amount should be appropriately increased. But pay attention to ventilating the greenhouse to avoid excessive humidity.
Drought Prevention
Especially in some arid areas, when planting greenhouse vegetables, you must pay attention to drought prevention measures.
You can cover the plants with plastic mulch in advance, and install equipment such as sprinklers and drip irrigation systems. Shade nets should also be installed in the greenhouse to reduce sunlight, lower the indoor temperature, reduce water evaporation, and protect the growing environment. At this time, you can choose to irrigate in the early morning on sunny days.
Soil Condition
Vegetables absorb water from the soil through their roots. 所以, when irrigating greenhouse vegetables, you must pay attention to the soil moisture. If the soil already has enough moisture, you can reduce the amount and frequency of irrigation appropriately. If the soil is very dry, then increase the water supply.
Irrigation Method
For greenhouse vegetable irrigation, do not use the rough method of flood irrigation, because it can lead to excessive water use, not only wasting water resources but also greatly increasing the indoor humidity, causing pests and diseases, which is very bad for vegetable growth.
It is best to choose drip irrigation, drip irrigation under plastic mulch, or micro-sprinkler irrigation. These methods can effectively control the amount of water, and may also achieve water and fertilizer integration, applying fertilizer while watering, which greatly improves efficiency.
例如, drip irrigation under plastic mulch can reduce surface water evaporation, and the humidity in the greenhouse can also be effectively lowered, reducing the occurrence of pests and diseases. As for micro-sprinkler irrigation, it has a mist-like effect that helps vegetables absorb water, while also controlling humidity and pests, and reducing deep soil seepage and fertilizer loss.
These water-saving irrigation techniques can all help increase yield and maintain quality. They are the most commonly used irrigation methods for greenhouse vegetables today.
最後一句話
When growing vegetables in a greenhouse, it is very necessary to choose a proper irrigation method and suitable irrigation techniques. Managing irrigation precisely for the plants can ultimately help improve both the yield and quality of the crops. I hope this post is helpful to you!
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作者: 邁克爾
編輯: 邁克爾
內容審閱者: 邁克爾
