How to water vegetables in greenhouses in winter? What to look out for?

I think you should choose drip irrigation or sprinkler irrigation. Both of these methods can be watered for greenhouse vegetables, the effect is also very good, and the efficiency is relatively high, but we must avoid wasting water resources.

Don't water too much at one time when watering, you can use a watering can to water, don't cause water accumulation, the temperature should be slightly higher when watering, if the temperature is particularly low, it is very easy to freeze to death, and ventilate more after watering. When watering, the water temperature should not be too cold, these are all things to pay attention to.

You can directly water, you can also spray for watering, there are some greenhouses that have related equipment, so that it is very convenient to water, watering must pay attention to the condition of the soil, pay attention to the growth of plants.

When watering in winter, be sure to choose to water at noon, so as not to cause the vegetables to be frozen. Pay attention to the time of watering, pay attention to the way of watering, pay attention to the temperature of watering, and pay attention to the method of watering.

For watering greenhouse vegetables in winter, it is best not to water it often, wait until it is completely dry after watering, and do not rush to watering when it is cloudy.

I think you can use drip irrigation to water, so that the watering efficiency will be higher, and the spraying will be particularly even. This will not cause a waste of water resources, and it is necessary to control the amount of watering.

It is also necessary to prepare a watering can inside, and then spray it evenly on the surface of the vegetables, and it is necessary to pay attention not to water too much, otherwise it may freeze.

Pay attention to watering, don't too much water in the greenhouse, not particularly dry, if you water too much, it is easy to cause stuffy roots.

What do you need to pay attention to when watering vegetables in greenhouses? When is the right time for watering?

In the process of vegetable planting, water and fertilizer supervision is a crucial management aspect, and sufficient water and fertilizer must be used to promote the growth and development of vegetables. The proper use of water and fertilizer can lead to healthy growth and development of vegetables and fruits, improved resistance to diseases and pests, and increased production. Summer and winter watering can affect soil temperature, so the length of irrigation is crucial.

In general, when growing vegetables in a greenhouse, they should be watered frequently. This requires watering every few days and fertilizing every few days. When planting outdoors, many farmers will water when they see a drought, which can easily lead to problems and jeopardize the normal growth and development of green plants in spring.

When watering in the shed, in addition to paying attention to the ambient temperature, you need to pay attention to the ambient humidity in the shed. Generally speaking, it is more suitable for watering in the morning, starting from the 9th in the morning, the ambient temperature in the morning is not very high, about 25, suitable for watering. After watering, the ambient humidity should be properly ventilated and adjusted.

In general, it is best to water in the morning and afternoon. Morning and afternoon watering had no effect on the growth and development of vegetables and fruits. It is usually prevented from watering during periods of high temperatures.

At the same time, it is not easy to cause the growth and development of vegetables. When planting vegetables in March, you should be aware of the change in ambient temperature. If the ambient temperature is relatively low, you should also pay attention to cold and warmth to ensure the normal germination of seeds.

Severe cold can also occur in late spring, and that should be prevented. March is the time when fruits and vegetables are at their most vigorous. Nutrients should not be lacking, so fertilizer should not be terminated.

At this time, the key is to apply basal fertilizer. Although it can give many nutrients to vegetables and fruits, it should not be excessive, otherwise vegetables and fruits will grow and develop in vain, which will have a great impact on the taste. It is necessary to do a good job of pest control and try to avoid damage.

Vegetables are able to cook into a plant or bacteria. Vegetables are one of the indispensable ingredients in everyone's daily diet. Fruits and vegetables provide a variety of nutrients, minerals and other nutrients that the body needs.

It is able to provide a variety of nutrients, give mineral elements, and improve the intestines. Carotene in fruits and vegetables can enter the body and be converted into vitamin D. If vitamin D is deficient, many organ functions can also be harmed, such as reduced night vision in the eye.

Hyperkeratosis and ** not smooth and its immune function decreases. In addition, vegetables and fruits can also give nutrients such as folic acid tablets and vitamin K1.

When watering, you need to pay attention to the fact that you must water on a sunny day, not on a cloudy day.

When watering greenhouse vegetables, we should pay attention to timely and frequent watering. The right time to water should be in the morning and evening.

When watering vegetables in the greenhouse, it is necessary to pay attention to the appropriate watering time, at low temperature when watering, and it is best to choose Chang rot to water in the morning on a sunny day.

<>1. Master the principle of watering, watering vegetables in greenhouses should be watered according to climatic conditions or seasons, because the hot weather in summer is also relatively hot, and the light is also very strong. And, when watering greenhouse vegetables, we should pay attention to timely and diligent watering, and the land should be watered less in winter and spring, not watered in rainy days, and can choose to water in the morning on sunny days, you can use drip irrigation, but do not flood irrigation, so as not to cause waste of water resources, or cause stagnant water, resulting in rotten roots of greenhouse vegetables.

2. Pay attention to the watering method, watering should be carried out according to the dryness and humidity of the soil, generally speaking, do not dry and do not water, if you can not judge whether the soil is dry, you can grab a handful of 10 cm of soil with your hands, and then knead it into a ball, after loosening it does not loosen it indicates that it does not need water, if the soil is loose, it means that it lacks water, at this time you need to water it more, but do not use large water to irrigate, because this is likely to lead to rotten roots of vegetables, In normal times, as long as you pay attention to keep it dry, if there is water in winter, you need to pay attention to the amount of watering and drain in time to avoid rotten roots.

3. Pay attention to watering precautions, generally speaking, watering needs to pay attention to the time of watering, which can be watered in the morning on a sunny day, because the water temperature and the temperature of the land at this time are also very close to the rental shirt, after watering, the root system adapts to the water relatively quickly, and the temperature will not change much at this time, but if you water in the afternoon, the soil temperature suddenly decreases, causing damage to the roots of the plant, so it is generally in the afternoon, evening, and rain and snow weather are not suitable for watering.

4. When watering, we should also pay attention to the amount of watering, generally speaking, it is not advisable to use large water for flood irrigation, because this will lead to the gradual loss of fertility, affect the absorption of fertilizer by the root system, and cause the plant to grow normally, in this case it can only restore the surface temperature as soon as possible, if the indoor maintenance in the greenhouse can directly increase the indoor temperature of the greenhouse, wait until the temperature rises, and pay attention to timely ventilation and moisture drainage, and wait until the temperature and humidity reach the appropriate range, you can wait for the growth of vegetables on their own.

1. The temperature in winter is low, and the water evaporation rate of vegetables in planting decreases, and the demand for water will also decrease. Therefore, we can reduce the amount of watering appropriately in winter, and the watering frequency should be slightly increased. When watering, it is necessary to use small water drip irrigation to prevent excessive water, high humidity and low temperature from causing vegetables to rot.

In winter, as long as the water demand of vegetables is met, try to combine water and fertilizer.

2. Watering time. There are also certain requirements for the watering time of vegetables in winter greenhouses, generally we should water at noon, and the best watering time is between 10 o'clock and 15 o'clock every day. Because the temperature of the greenhouse during this time period is relatively high, it can avoid frost damage.

When watering, try to use well water, because the temperature of the well water is relatively high, and the water temperature can also be heated to about 10 degrees. Prevent the water temperature from being too low and causing vegetables to be unable to adapt and cause frost damage.

3. Water according to the weather. When watering, you should observe the weather conditions, increase the amount of watering on sunny days, reduce the frequency of watering, and not only do not watering on rainy days, but also do a good job of rain prevention and drainage. And when the weather temperature gradually decreases from high, it is necessary to reduce the amount of watering in time to prevent waterlogging and frost damage caused by excessive moisture.

On the contrary, it is necessary to increase the amount of watering appropriately to ensure sufficient water while preventing freezing damage and waterlogging of vegetables.

4. Water according to the growth. Most of the vegetable holes do not have different water requirements at different growth stages, so we also need to control the amount of watering and adjust the watering method according to the growth of the vegetables. Generally, the growth cycle of leafy vegetables is not long, so the watering period is relatively concentrated, and the watering amount should be large and the watering interval should be short.

At the seedling stage, it is necessary to ensure that the soil is moist, promote the seedlings to slow down, control the amount of watering at the germination stage, and then increase the amount of watering during the fruit expansion period to ensure that the vegetable growth has sufficient and suitable water.

Hello, dear, how to water vegetables without greenhouses in winter? Answer: First, according to the soil moisture according to the soil conditions watering is very important, if the soil is not lacking, you also water a lot, it will seriously affect the permeability of the planting * soil, resulting in roots.

Second, according to the weather in general, sunny watering is the best, a few days after watering are sunny is the best, if watering is the rainy season, then it will lead to an increase in the probability of disease, so we can judge according to the weather forecast before watering. One point that everyone needs to pay attention to here is that if it has been cloudy before, it is not possible to water it when it suddenly clears. 3. Timely watering is suitable for the average daily temperature of vegetable growth, which is 22 degrees.

In winter, the ground temperature is mostly around 18 degrees. If you water too much or at the wrong time, the low temperature will also drop, and the roots of the vegetables will be damaged by frost. Watering at ground temperature, preferably in the morning, after the grass has been pulled apart.

Watering, but also to check the condition of the soil. It is enough to keep the soil moist and not to water it too often. If you water too much, 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 water from a kettle.