There are a lot of vegetable farmers who have a wrong idea, that is, winter, the temperature is not so dry, the crops do not need watering, is this idea correct? Of course it is not right, even in the winter, greenhouse vegetables need to be watered. However, greenhouse vegetables have a lot of moisture, and there are many places to pay attention to in watering. Let's take a look at it. First, according to the soil details Watering according to the soil conditions is very important. If the soil is not lacking, you will still pour a lot, which will seriously affect the permeability of the planted soil, leading to roots. Second, according to the weather Generally speaking, watering on sunny days is the best. It is the best for sunny days after watering. If it is rainy season after watering, it will lead to an increase in the incidence of diseases, so you can According to the weather forecast. One point that everyone needs to pay attention to here is that if it has been cloudy for a long time, it will not be watered if it suddenly clears up. Because the surface temperature of the greenhouse has not slowed down, you can raise the temperature of the greenhouse and the surface temperature and then water it. . Third, timely watering The average daily temperature suitable for vegetable growth can be as good as 22 degrees. In winter greenhouses, the ground temperature is about 18 degrees. If there is more watering or the timing of watering is not right, the low temperature will also drop, and the roots of the vegetables will be frozen. Watering at ground temperature, preferably in the morning, after the grass is pulled open. Watering, but also to see the soil. The soil is kept in a moist state, and it is not necessary to water it too often. If the watering is poured more, the inside of the greenhouse will also become cooler, and the ground temperature will also drop, which is not conducive to the growth of vegetables. When watering, it is best to pour small water or drip with a kettle. Fourth, according to the growth of vegetables If the leaves of vegetables are cyanotic, the growth potential is poor, and the fruit umbilical rot also occurs. This situation is that the vegetables are short of water and should be watered in time. On the contrary, there is no need to water. Fifth, the control of water temperature The temperature of the greenhouse in winter is higher than the outside, and the temperature of the water should be appropriate. If the temperature difference is higher than 5 degrees, the root of the vegetable will not be able to withstand the damage and will be injured. To water the greenhouse vegetables, it is necessary to raise the temperature of the water first, and it is not advisable to use cold water. Sixth, management After pouring the water, the temperature of the greenhouse should be controlled at noon for the first two days. Keep it at about 40 degrees, and the shed for about 1 hour, the temperature of the surface can be improved. Then ventilate more, so it is not so wet. Seven, cover the mulch Under normal circumstances, the vegetable mulch film can reduce the evaporation of water and the stability of soil temperature. In summary, it is all the content of today. When you are watering vegetables in greenhouses, you must pay attention to these problems and hope to help everyone! For the wonderful pictures and hot comments about watering vegetables in greenhouses in winter, you may be interested in the following recommended contents. Welcome to read. Female Internal Genital Model,Human Brain Anatomy Model,Larynx Heart And Lung Model,Liver Pancreas And Duodenum Model YinChuan EXin Medical Instrument Co.,Ltd , https://www.exmedmodel.com
Watering points and precautions for greenhouse vegetables in winter