How to Irrigate Water in Greenhouse Vegetables

This year, the greenhouse vegetable is continuing due to drought. The drought is serious. The moisture evaporates quickly. Some farmers find that the soil on the surface of the ditch is dry and use the dam water to irrigate. It is blind and diligent. If the irrigation is improper, the water control is not good. The internal humidity will lead to the phenomenon of “three falls” of peppers and cucumbers entering the full fruit period and the epidemic of diseases and insect pests. Therefore, attention should be paid to the following matters when filling water:

First, timely "three checks" to see if there is water shortage. When opening a shed in the morning, first check whether the water droplets on the greenhouse membrane are evenly distributed and dense. If there are more water droplets, it means that the water is adequate and no irrigation is needed. If the amount of water drops is small, it is necessary to timely fill the water. Next, check whether there is water on the covered mulch; again, check whether the soil below 10 cm above the rake is moist, because the sorghum deep rill cultivation is used in the shed, the soil on the rill surface is dry, but the moisture in the deep soil is very high. If you see that the surface is dry, it will lead to excessive humidity, long-term root water, induce root rot.

Second, the irrigation time: the best after 11 in the morning, after the irrigation through the daytime ventilation and humidity, can reduce the greenhouse humidity, high temperature during the day can not be watered, before closing the shed in the afternoon to prevent irrigation, after irrigation without dehumidification on the off In the shed, the humidity will increase and induce the occurrence of diseases.

Third, irrigation methods: It is best to use artificial irrigation, put an end to the entire shed irrigation, pumping irrigation is best to use a small pipe sprinkler irrigation water.

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