What do you need to pay attention to when watering vegetables?

Planting vegetables requires a lot of water and nutrients, simply only nutrients and no water combined, the root system of vegetables is unable to grow and develop normally, and in serious cases, vegetables will even shrink and dry up because of lack of water.

Planting vegetables requires a lot of water and nutrients, simply only nutrients and no water combined, the root system of vegetables is unable to grow and develop normally, and in serious cases, vegetables will even shrink and dry up because of lack of water.

There is a knack for watering vegetables, and the precautions are as follows.

When watering vegetables, first of all, you must hoe the soil to loosen it well, so that the soil can absorb water quickly, absorb water evenly and saturated.

If you are irrigating and watering the soil, the water should not be too deep, nor too low, and the soaking time should not exceed 30 minutes.

If you are watering vegetables with manure and urine, Seven Star Old Farmers suggest that you water it after three o'clock in the afternoon.

After the sun is exposed to the sun during the day, the nitrogen in the feces and urine is easy to evaporate and lose, resulting in the bottom of the fertilizer effect of the manure and urine.

Therefore, the old farmer of Seven Stars personally believes that vegetable watering, whether you are manually watering, or mechanized watering, or blocking irrigation watering, if your vegetable soil is compacted, I suggest that you first use a hoe hoe to loosen the soil and then water, so that the soil water absorption is more balanced, the water storage time is long, not easy to lose, the vegetable root system has strong absorption, pay attention to spraying fine mist when mechanized sprinkling, avoid spraying water with high-pressure faucets, which is easy to cause vegetable lodging death, when watering vegetables with manure and urine, You should choose a sunny day in the afternoon when the sun is westerly, so that the nitrogen fertilizer in the manure and urine will not be easily evaporated due to the high temperature of the sun, right? What do you think? Everyone is welcome to comment!

Therefore, the old farmer of Seven Stars personally believes that vegetable watering, whether you are manually watering, or mechanized watering, or blocking irrigation watering, if your vegetable soil is compacted, I suggest that you first use a hoe hoe to loosen the soil and then water, so that the soil water absorption is more balanced, the water storage time is long, not easy to lose, the vegetable root system has strong absorption, pay attention to spraying fine mist when mechanized sprinkling, avoid spraying water with high-pressure faucets, which is easy to cause vegetable lodging death, when watering vegetables with manure and urine, You should choose a sunny day in the afternoon when the sun is westerly, so that the nitrogen fertilizer in the manure and urine will not be easily evaporated due to the high temperature of the sun, right? What do you think? Everyone is welcome to comment!

Reasonable watering is an important measure to ensure the healthy growth of greenhouse vegetables and improve the yield. In view of the low temperature in winter and the high humidity in the shed, the following matters should be paid attention to when watering vegetables in the greenhouse:

1. Pay attention to growth.

Look at the growth of the plant, usually when the plant lacks water, the leaves will wilt, the growth will be weakened, and the fruit umbilical rot will occur more, so it should be replenished in time.

2. Pay attention to moisture.

It depends on the soil moisture, if the greenhouse soil is not dry when watering, it is not only not conducive to raising the ground temperature, but also easy to lead to poor soil permeability, resulting in a lack of oxygen in the root system, resulting in root soaking and yellow leaves.

3. Pay attention to the weather.

Before watering, be sure to watch the weather forecast, not only to choose a sunny day for watering, but also to ensure that there are 2 3 days of sunny days after watering, so as to avoid encountering rainy weather after watering, resulting in increased humidity in the shed, lower ground temperature, and frequent diseases. In the late winter, it is necessary to pay more attention to the fact that in the first two days after the cloudy day, it is not suitable for watering, and the shed temperature and ground temperature should be increased first, so that the plants can basically return to normal before watering.

4. Pay attention to the ground temperature.

The average daily ground temperature suitable for vegetable growth is about 22, and in the late winter, the temperature in the shed is more than 15 20, if the watering is excessive or the watering time is not right, the ground temperature will drop rapidly, causing the root system to be injured, endangering the growth of the aboveground part of the plant, therefore, watering at low temperature is best carried out after pulling the grass in the morning.

5. Pay attention to covering the mulch.

Mulching can not only reduce ground water evaporation, maintain soil moisture, reduce the number of watering, reduce air humidity, reduce the occurrence of diseases, but also increase ground temperature and speed up the growth rate of vegetables.

6. Pay attention to moderate watering.

Watering vegetables in winter and spring sheds generally follows the principle of no shortage and no watering, rather dry than wet, keeping the water content of vegetable rhizosphere soil at about 60%, preventing too much and too frequent watering, and avoiding flood irrigation. Overwatering can easily reduce the air temperature and soil temperature in the shed, which is not good for the growth of vegetables. It should be watered frequently with small water, or water from a kettle to the plant.

7. Pay attention to regulating the water temperature.

When the water temperature is more than 5 different from the temperature in the shed, it is easy to cause root damage. It is better to use deep well water with higher water temperature or pre-storage in the shed for irrigation.

8. Pay attention to the management after watering.

In the first two days after watering in winter, the temperature should be raised to about 40 at noon, and the shed should be stuffed for 1 hour to increase the temperature in the shed. Then increase the ventilation volume to reduce the humidity in the shed.

Is it better to water in the morning or at night?

In fact, watering vegetables at these two points is a very good choice, and it is very beneficial to the growth of vegetables. If you are a very meticulous person, you can also choose a more suitable time for watering. If you are watering vegetables in spring and autumn, the difference between watering in the morning and evening is not very big, but if you are watering in the season when evaporation is very strong in summer, it is recommended that it is best to choose to do it at night, because watering vegetables at night can absorb more adequate water and fertilizer, if you choose to water in the morning, due to the hot weather, evaporation is vigorous, and the water may be evaporated soon, and it is not able to achieve the effect of watering well. And watering it at night will look more suitable.

Of course, the most unsuitable time for watering vegetables is noon, although vegetables may be very short of water at this time, but watering at this time can not alleviate the drought problem of vegetables, but it is easy to lead to the situation of "fried" roots of vegetables, resulting in the growth of vegetables is affected, and in serious cases, it will also cause the death of vegetables.

How to water vegetables better?

Watering is indeed a very important knowledge for vegetable planting, and here we will introduce a little knowledge about vegetable watering.

Watering in summer should not be flooded: In summer, the weather is hot, and many vegetables often have drought and water shortage, so watering is very important. Many vegetable farmers believe that vegetables need more water to grow in summer, and often use flood irrigation for watering, believing that vegetables can better absorb water, alleviate drought, and reduce the temperature of the growing environment.

In fact, the use of flood irrigation for watering is very unfavorable to the growth of vegetables, because flood irrigation will suffer from water accumulation in the field, resulting in rotten roots, yellow leaves, poor fruit growth and other conditions of vegetables. Especially for some vegetables that are not tolerant to waterlogging, it is undoubtedly a very serious hazard. Therefore, when watering in summer, we must pay attention not to flood irrigation to avoid water accumulation in the field.

Vegetables are tender and juicy plants, and their growth and development processes require a large amount of water. Therefore, watering has become an important part of cultivation management.

Vegetable seedlings do not need much water, but they need careful management ability to cultivate strong seedlings of appropriate age. Before sowing, you must water enough seedbed water, sow after the water seeps down, and do not water the head water after sowing. At the seedling stage, it is usually necessary to keep the seedbed moist.

If the seedlings grow, they can be watered modestly to enhance the seedlings. Some vegetables should not be watered too much at the seedling stage, such as coriander, green garlic, open-field autumn cucumber, etc. Some seedlings with small and shallow roots, such as leeks, cabbage, amaranth, etc., should be watered lightly and frequently.

1 week before the seedlings are planted, the water should be controlled, the seedlings should be refined, and the roots should be strengthened; Before the seedlings rise, the furrow should be watered thoroughly to reduce the root damage when the seedlings are raised; When planting, seedlings are raised, planted, and watered at the same time. 4-5 days after planting, water the seedlings once a time. After the seedlings are slowed down, the water is properly controlled to enhance the rooting.

For some vegetables that use fruit as a commercial organ, it is usually not suitable to water from the early flowering stage to before fruit set, such as loofah, bitter gourd, lentils, peppers, etc., and should be watered when a batch of fruits is sitting. Some vegetables (green leafy vegetables, cabbage, etc.) that require more water during the growing season should be watered frequently to maintain their lush vegetative growth. For example, within 2 months after celery planting, it is advisable to water frequently, otherwise, the growth will be delayed.

In the middle and late stages of vegetable growth, the watering area should be judged according to the root-shoot ratio, such as chayote should be watered within 3-4 meters from the plant. For vegetables that continue to be picked (such as fungus, leeks, celery, etc.), do not water immediately after each harvest, because the wound is not healed, and watering is easy to cause erosion. Vegetables that need to be stored after harvest (Chinese cabbage, potatoes, green onions, etc.) should be watered less before harvest to improve their storage resistance.

In addition, when planting temperature-loving vegetables for watering in the cold season, it is necessary to choose a sunny day to water in the morning, and not in the afternoon or rainy and snowy days. Usually poured with warm water (6-10). In order to reduce the air humidity in the shed, you can take the film to pour dark water, to water enough with small water, not with small water.

For overwintering vegetables cultivated in the open field, it is advisable to pour enough overwintering water before the soil freezes. Planting cold vegetables in the hot and dry season, watering should be "cool weather, cool ground, cool water" when watering, that is, watering in the morning and evening, can be watered well water or shady river water. In the summer, after the rains, the well water should be poured to avoid the appearance of rotten roots.

Reasonable watering is an important measure to ensure the healthy growth of greenhouse vegetables and improve the yield. In view of the low temperature in winter and the high humidity in the shed, the following matters should be paid attention to when watering vegetables in the greenhouse:

1. Pay attention to growth.

Look at the growth of the plant, usually when the plant is short of water, the leaves will wilt, the growth will be weakened, and the fruit umbilical rot will occur more, so it should be replenished in time.

2. Pay attention to moisture.

It depends on the soil moisture, if the greenhouse soil is not dry when watering, it is not only not conducive to the improvement of ground temperature, but also easy to cause poor soil permeability, resulting in lack of oxygen in the root system, the formation of roots, and the phenomenon of yellow leaves.

3. Pay attention to the weather.

Before watering, be sure to watch the weather forecast, not only to choose a sunny day for watering, but also to ensure that there are 2 3 days of sunny days after watering, so as to prevent rainy weather after watering, resulting in increased humidity in the shed, lower ground temperature, and frequent diseases. In the deep winter, it is more necessary to pay attention to the fact that even the first two days after the cloudy day is suddenly sunny, it is not suitable for watering, and the greenhouse temperature should be improved first, so that the plants can return to normal before watering.

4. Pay attention to the ground temperature.

The average ground temperature suitable for the growth of vegetables is about 22, and in the deep winter, the temperature in the shed is more than 15 20, if the watering is excessive or the watering opportunity is not right, the ground temperature will drop rapidly, forming a root injury, endangering the growth of the aboveground part of the plant, therefore, the watering at low temperature is best to stop after pulling the grass in the morning.

5. Pay attention to covering the mulch.

Masking mulch film can not only reduce the evaporation of water in the air, adhere to soil moisture, reduce the number of watering, reduce air humidity, reduce the onset of diseases, but also improve the ground temperature and speed up the growth of vegetables.

6. Pay attention to moderate watering.

Watering vegetables in winter and spring sheds, generally follow the criteria of no lack and no watering, rather dry than wet, adhere to the water content of vegetable rhizosphere soil at about 60%, avoid too much and too frequent watering, and avoid flood irrigation. Overwatering can easily reduce the air temperature and soil temperature in the shed, which is not good for the growth of vegetables. It should be watered frequently with small water, or water from a kettle to the plant.

7. Pay attention to regulating the water temperature.

When the water temperature is more than 5 different from the temperature in the shed, it is easy to form root damage. It is better to use deep well water with higher water temperature or pre-storage in the shed for irrigation.

8. Pay attention to the management after watering.

In the first two days after watering in winter, the temperature should be raised to about 40 at noon, and the temperature in the shed should be improved for 1 hour. Then increase the ventilation volume to reduce the humidity in the shed.

The time of watering, the number of times of watering, the frequency of watering, the amount of watering, how much to water at one time, and how often to water.

If you want to water your vegetables, you should also pay attention to the time issue, so it is best to water them in the morning or evening.

You need to pay attention to the amount of watering. If you water too much, the vegetables may rot the roots.

Vegetables do not need to be watered every day in the non-vigorous growth period, and it is better to water once a day at a general interval of about three days, and once a day in summer if the weather is hot, and once a week in winter.

Vegetables are generally best watered in the sultry evening, and this time is also the time when Zhishiqiao and plants need water replenishment the most, so it is good to water the soil thoroughly at one time, so that the soil can be kept moist, and watering tap water can grow well.

The correct way to water vegetables.

1. Newly planted vegetables.

When vegetables are just planted in the soil dissipation, try to avoid overwatering, because the rhizome part of the plant is not fully developed, it is easy to appear because of too much water in the soil, resulting in difficulty in breathing of the plant.

2. Change the pot of vegetables.

When changing pots and transplanting vegetables, it is also necessary to avoid watering too much in the first few days, when the mature plant roots have just entered the new soil environment, and there needs to be an adaptation period to allow the plants to grow better.

3. Water quality. In the process of growing vegetables, they do not need too much water for high nutrition, so they can be watered with the most common tap water, and it is best to put the tap water in the sun for a while before use.

4. Watering frequency.

During the growing season, the water requirement of vegetables will increase greatly due to the rapid growth of the plants, and it is possible to water them once a day, or even twice a day.

Vegetables are overwatered.

If in the process of planting, the vegetable is overwatered, the vegetable can be moved to the sun, so that the vegetable receives full sunlight, the heat energy of the sun is used to evaporate the water, and the photosynthesis of the plant can be accelerated, and the water in the soil can be quickly discharged by the plant itself.