Can cold shed tomatoes be watered in the morning and sprayed in the afternoon?

It can be spaced 24 hours apart.

If spraying fungicide, it is recommended to dry the morning dew before spraying, avoid high temperatures, and do not spray in the afternoon. Insecticides are different, you can't spray anti-whitening powder with dew in the morning, but you can spray them with potion at night.

It is also possible to spray in the afternoon, but after spraying, the ventilation in the shed should be strengthened to reduce the air humidity in the shed, and after reducing the humidity, the tomato is not easy to aggravate the occurrence of diseases.

However, it is best to take medicine in the morning on a sunny day, so the effect is better.

1.Watering according to the growth periodIn the whole process of tomato growth and development, the amount of water watered in different growth periods is different. The water required at the germination stage is relatively high, and the soil moisture should be controlled at 80%, and when it comes to the seedling stage, the water will be reduced, and the soil moisture should be 60%, so it is necessary to control the moisture at this time, but it should not be too dry, otherwise it will affect the flower bud differentiation.

The humidity after planting should not be lower than 60%, but it should not be overwatered, usually watering while planting, and then watering 3-5 days after planting. When fruiting, the more fruits, the greater the ventilation, and the humidity should be controlled at 75-80%. 2.

According to the stubble to water in early spring to plant tomatoes in the greenhouse, after fruit set, it is necessary to water in time, at this time more water is needed. If it is a wintering tomato, it is necessary to water enough planting water in October, and at the same time cooperate with the cultivator to ensure the moisture of the soil, if there is no special situation before fruit set, there is no need to water again. Use a small amount of water when watering to avoid a significant reduction in floor moisture.

3.It is very important to see if the tomato needs to be watered to see if it is watered, and it is very important to judge whether the tomato is short of water. If the leaves of the tomato are dark green, the heart leaves are also very spread, and the leaves look shiny, it means that the tomato is growing well and does not need to be watered.

If the heart leaves do not look extensive, the leaves are dark green, and the leaves still droop on sunny days, it means that the tomatoes are short of water and must be watered in time. If there is too much water, the heart leaves will be excessively spreading, and the leaves are large but very thin, so it is necessary to control the moisture at this time. 4.

It is very important to control the watering time of watering, during the tomato growth period, you should choose a sunny day for watering, and the time is set in the morning, and other times are not suitable. If you choose afternoon or evening, the humidity in the shed is relatively high, which can easily cause pests and diseases. On cloudy days, the humidity is already very high, and if you water it again, there is a high risk of waterlogging.

The humidity is at its highest at noon, when the temperature of the watering ground changes greatly, which affects the growth of the root system. Growing vegetables in the greenhouse is indeed a good method, even in winter you can eat delicious vegetables, but in this planting is particular, there are more problems that need to be paid attention to, and spring tomatoes have higher requirements for moisture, so when planting tomatoes, we should pay special attention to the problem of moisture, and observe its growth, so that it can have a better growth environment, and there will be more tomatoes in the future, so that growers have a good income.

It's best to take the medicine two days apart!

It is recommended that the insecticide and the fungicide should be spaced apart, and the application should be done after 24 to 48 hours.

If you spray fungicides, it is recommended that it is best to spray after the dew dries in the morning, so as to prevent dilution, and the sterilization effect is not good when diluted, in addition, avoid high temperature weather, high temperature will hurt seedlings, the sun is not strong, and spraying in the afternoon on cloudy days is OK. Spraying pesticides can also be sprayed before the dew dries in the morning, and the pesticides are mixed with water, not afraid of dew. In the morning, you can spray whitefly medicine, and at night, you can spray thrips medicine.

Greenhouse tomatoes are a very common vegetable, and the requirements for the growing season are relatively strict, requiring sufficient light, suitable temperature, humidity and so on. On rainy days, it can cause problems such as temperature drops, excessive humidity, etc., and if there is enough moisture outside, there is no longer a need for watering. However, if there is no rain in the area for a long time and the tomatoes need to be hydrated, you can consider watering them.

However, there are some things to pay attention to when planting tomatoes and watering them on rainy days. First of all, you need to make sure that the ground is not too wet, so as not to cause pests and diseases, which can cause problems in plant growth. Generally speaking, it is possible to water on the second and third days of rainy days, and the amount of water needed can be adjusted according to the temperature, humidity and other conditions.

In short, planting tomatoes in greenhouses on rainy days, although they do not need to be watered frequently, they still need to pay attention to the needs of the plants from time to time, adjust and take care of them in time to ensure the steady growth of tomatoes.

Greenhouse tomato late blight can be watered for 3-5 days.

Eggplant yellow spot borer is also known as eggplant borer and eggplant borer. The adult body is millimeters long, the wingspan is 18 32 mm, the body and wings are white, the forewings have 4 distinct yellow markings, the base of the wings is yellowish-brown, there is a red triangular stripe at the front end of the posterior margin, and there is a black eye-shaped stripe below the apical angle. The middle chamber of the hindwings has a small black spot.

The eggs are millimeter mm, dumpling-shaped, with 2 or 5 teeth on the ridge, milky white at the time of first birth, grayish-black before hatching. The mature larvae are 16 to 18 mm long, yellowish-white at the first instar and pink at the old age. The dorsal plate of the head and prothorax is black-brown, with 6 black-brown hairy spots on each segment, 4 large in the front and 2 small in the back, with a nodule on each side of each segment and two bristles on it.

Pupae 8 9 mm long, light yellowish-brown, with a pair of protrusions above each side of the stomata on 3 4 segments of the abdomen, covered with dark brown irregular cocoons, white at first, gradually dark brown or brownish-red.

The larvae burrow the top heart, tender shoots, young stems, flower buds and fruits of eggplant, causing wilting, flower dropping, fruit drop and fruit rot on the branches. In autumn, the larvae are more bored fruits, and insect feces are left outside the borers. Autumn eggplant is more damaged than spring eggplant.

In Wuhan area, 5 6 generations occur in Wuhan area, and 4 generations in Jiangxi, Zhejiang and other places, and the mature larvae form thin cocoons attached to the stump forks, dead leaves, weed rhizospheres and soil surface crevices and other places for overwintering. Pupae begin in April of the following year, and larvae generally begin to appear in May, overlapping generations, and July and September are the most serious, of which mid-July to late August is the most serious period, that is, the first.

The second and third generations are the main and harmful generations. Adults are diurnal and nocturnal, with weak phototaxis and greenism. The eggs are scattered in the middle and upper parts of the dead plant, especially on the reverse side of the upper young leaves.

The hatched larvae first eat the egg shell, and then bored into the flower buds and ovary or into the heart leaves, shoots and petioles. Generally, spring eggplant flowers, buds, and shoots are seriously damaged, and autumn eggplant fruits are seriously damaged. In summer, the mature larvae mostly pupate the green leaves in the middle and upper parts of the dead plants, and a few pupate on the dead leaves, and in the autumn, they pupate in the litter of the lower part of the dead plants, weeds and soil crevices.

Summary. Hello, it is not advisable to water four do not water 1Do not pour low-temperature water.

If the water temperature is too low, the ground temperature will drop sharply, and at the same time affect the rise of temperature, which is easy to cause cold roots and roots of plants, and affect the seedlings. Therefore, it is not advisable to pour pit water, especially water with ice. 2.

Do not water on cloudy days. It is not advisable to water when the temperature is low on a cloudy day, otherwise, it will not only affect the rise of temperature, but also cause the occurrence of diseases such as early blight and late blight caused by the increase of air humidity in the shed. 3.

Do not water in the evening. Tomatoes should not be watered at night, especially after fruiting, otherwise it will not only cause excessive humidity in the shed, serious condensation of leaves and cause gray mold and other diseases, but also easily cause plant growth or crazy seedlings. 4.

Not much flooding. Flood irrigation not only causes the ground temperature to drop sharply, but also may cause tomato fruit cracking, and can also cause soil compaction, affecting root respiration and plant growth.

Hello, it is not advisable to water four do not water 1Do not pour low-temperature water. If the water temperature is too low, the ground temperature will drop sharply, and at the same time affect the rise of temperature, which is easy to cause cold roots and roots of plants, and affect the seedlings.

Therefore, it is not advisable to pour pit water, especially water with ice. 2.Do not water on cloudy days.

It is not advisable to water when the temperature is low on a cloudy day, otherwise, it will not only affect the rise of temperature, but also cause the occurrence of diseases such as early blight and late blight caused by the increase of air humidity in the shed. 3.Do not pour liquid water on the car beam in the evening.

Tomatoes should not be watered at night, especially after fruiting, otherwise it will not only cause excessive humidity in the shed, serious condensation of leaves and cause gray mold and other diseases, but also easily cause plant growth or crazy seedlings. 4.Not much flooding.

Flood irrigation not only causes the ground temperature to drop sharply, but also may cause tomato fruit cracking, and can also cause soil compaction, which affects root respiration and plant growth.

It's just about to bloom now, and the leaves are wilting at noon today.

It's been more than 2 o'clock.

Get back to me.

If the leaves are wilting due to drought, it can be relieved after watering.

It's dry, and I'm going to water it this morning, but the well is broken, and it's just been repaired.

Well, it's okay, dear, you can slow it down.

Some of the leaves are ripe.

What does that mean.

I want to pour it at night, no.

If the drought is too severe, it can also be watered at night.

Tomatoes should be watered at an interval of 3-5 days to slow the seedling water, pay attention to the use of river water or well water when watering the plants, and take a low watering method to make the tomato roots completely moistened, so that the bush plants absorb water. Tomatoes are watered once a few days Tomatoes have a higher demand for water during the growth process, and the watering frequency should be adjusted according to weather changes, when the weather is hot, you can water every 2 or 3 days, if the climate is cooler, you should water the tomatoes every 1 week. How to maintain tomatoes after watering After watering tomatoes, you need to build a shade shed for the plants, block 60% of the light, let the seedlings be exposed to scattered light, and pull out the weeds in the soil to avoid tomatoes being infected with insect pests.

How to fertilize tomatoes After tomato planting, an organic fertilizer solution should be applied, and when the leaves grow to about 5-10 cm, foliar fertilizer should be sprayed for the plant to ensure that there are sufficient nutrients during the growth of the tomatoes, so as to avoid poor growth.