The summer weather is hot, and people and plants are extremely vulnerable to water shortage. The water management in the greenhouse in summer is very important. It doesn't look like watering is a very simple thing, but pouring more and pouring less, when pouring, how to pour it all has a doorway. Next, we will ask Master Zhou of Heguan Town, Qingzhou City, Shandong Province to summarize the main points of watering management in summer greenhouses. Let's learn together.
First, the watering time is well arranged
The watering time in summer should be carried out in the morning or in the evening, which can not only achieve the cooling effect, but also not cause damage to the vegetable roots. Especially in the evening watering can effectively reduce the night temperature, increase the temperature difference between day and night, reduce the nighttime respiratory consumption of plants, and help the accumulation of nutrients. Remember not to water at noon, to avoid the phenomenon of “fried†roots in the roots of vegetables after cold water stimulation, thus affecting the normal growth of vegetables.
Second, frequent pouring and interlacing
That is to take the planting line and the operation line, and the method of pouring small water alternately, so as to ensure the positive growth of the vegetables, and keep the humidity of the shed to avoid the occurrence of viral diseases and bacterial diseases. The number of watering should be flexibly grasped according to the growth of the vegetables, the dry and wet conditions of the soil, and the weather changes. For example, the day before the continuous abnormally high temperature weather can be appropriately poured and treated.
Third, avoid watering after water control
Some vegetable farmers worry about excessive water control for a long time because of plant growth and other reasons. At this time, watering should pay attention to first pouring a small amount of water, so that after 3-5 days of adaptation, the water should be appropriately increased. Progressively. After the long drought, it is not correct to let them "drink" once, which is very easy to damage the roots, causing weak roots, causing early sorrow, and also providing favorable conditions for the occurrence of various root diseases.
Fourth, spray water
Spray the water on the plant at around 10 am on a sunny day (focus on spraying the upper part of the plant) to prevent "drought". This not only replenishes the leaves, but also reduces the temperature of the shed. Especially for those plants that have entered the late growth stage and whose root absorption capacity is weakened, spraying water has a good effect on relieving physiological problems such as curling leaves and yellow leaves.
The above is the four main points of the summer greenhouse watering management compiled by Huinong. I have learned it?
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