The latest watering method of vegetables in greenhouse in summer

The most important thing for growing vegetables in the greenhouse to water is not only to moisturize, but also to distribute moisture. Water cannot be kept in the greenhouse all the time, and some diseases with high humidity are prone to occur. But there are some different precautions for watering in summer. High temperature, heavy rain and easy drought are the keys to watering in summer. Watering methods and matters needing attention should be determined according to these effects. You can continue to read the details below.

1. Watering time

Under the influence of high temperature weather, it can not be watered at noon or when the sun is strong. The ground temperature is very high, and vegetables are constantly receiving high temperature and evaporating water. At this time, the roots and plants are very weak, and sudden watering is easy to be counterproductive. Maybe boil the roots. It is best to water it in the morning and evening, when the temperature drops a little, which can protect the roots, absorb quickly and restore growth.

2. Watering method

When watering, not too much, flood irrigation is not good, it is best to install irrigation facilities under plastic film infiltration, or sprinkler irrigation, drip irrigation. The advantage of the way of infiltration under the membrane is that it can directly maintain the absorption of water by the root system, and it will not be distributed into the greenhouse. Sprinkler irrigation into water molecular irrigation, conducive to absorption, can be absorbed directly from the leaves, easy to recover, if drought, can increase air humidity. Drip irrigation can make the roots have a transition period to adapt to the watering process after drought and high temperature.

3. Watering after a long drought

If the soil will be very dry after a long drought in summer, the concentration of soil solution will increase and the absorptive capacity of roots will decrease. Can not water too much at one time, you can all pour shallow water first, observe the growth reaction of vegetables and gradually increase the amount of water. Finally return to normal watering. If it is still hot during watering, choose the time to do it. In addition, the watering should continue.

4. Drought prevention

After the beginning of summer, areas prone to drought in previous years should be prepared for drought prevention at the beginning of summer, such as covering plastic film in advance and installing sprinkler irrigation, drip irrigation and infiltration watering facilities. Prepare sunshade net, which can reduce light and temperature, reduce water evaporation and protect the planting environment. You can spray clear water every sunny morning. Prevent drought and cool down. The main thing is to keep growing momentum.

The main purpose of watering greenhouse vegetables in summer is to cool down and prevent drought, which is a main purpose, but the ultimate goal is for the normal growth of vegetables in summer. Therefore, summer watering should not be taken lightly. Watering is different from other times. You need to pay attention to the time and method of watering.