How to manage vegetables in summer? Rainproof tips for arched sheds!

Starting from July 24, this year's largest range, longest duration, the hottest round of high temperature hit.

Look at our vegetable growers, some people are using high temperature stuffy shed, some people have just sown chili seeds ready to germinate, some people have bred seedlings waiting for the beginning of autumn to transplant, some people are digging lotus roots in lotus pond... Many farmers are still working in the field under the scorching sun, everyone is hard!

Our farmers are not afraid of their own hard work, but hope that these "baby vegetables" can thrive and finally have a good harvest. Therefore, Xiaobian compiled some small knowledge about vegetable management in summer high temperature rainfall weather for everyone, hoping to help everyone.

How to improve the transplanting survival rate of summer vegetables?

Summer temperature is high, temperature difference between day and night is small, water evaporation is large, seedlings slow after transplanting. To improve survival:

Firstly, ridge cultivation or semi-high ridge cultivation is adopted, and drainage measures are taken.

The second is to use less chemical fertilizer or organic fertilizer without decomposition. The base fertilizer can be bio-organic fertilizer or organic-inorganic compound fertilizer, applied 30~ 50kg per mu, spread to the ground before ridging; before planting, apply 20kg bio-bacterial fertilizer per mu with holes, concentrated in cultivation holes or under ridges, without direct contact with seedling roots.

Third, do not flood when watering. After transplanting, slow seedling water should be continuously watered for 2~3 times, and the ditch or ridge should be watered in the morning of the second day; drainage should be carried out in time after rain, and well water should be used again in time after thunderstorm at noon, that is,"watering the garden", reducing the harm of hot rain and reducing soil hardening.

Fourth, 5~7 days after seedling planting, tilling and loosening should be carried out to increase the permeability of soil and inhibit excessive growth of seedlings.

Summer pruning leaves to pay attention to what?

Take colored pepper as an example, the temperature is high in summer, the light is strong, the young fruit of colored pepper and the fruit in the color conversion period are easy to occur sunburn, reasonable pruning and leaf picking are effective measures to prevent sunburn. However, two points should be noted:

One is: the upper leaves of the fruit are "more and not crowded".

To prevent sunburn, make sure there are leaves around the pepper fruit, especially the upper leaves. To follow the upper leaves of the fruit "more but not crowded" principle, not only to ensure the ventilation effect between plants, but also not lack of light transmission. Do not pick the leaves on the upper part of the fruit, even if they are old leaves, try not to pick them off. These leaves can act as "parasols" for colored pepper fruits to reduce the occurrence of sunburn.

The second is that the lower leaves of the fruit are "less and more vigorous".

Many vegetable farmers remove all the leaves at the lower part of the fruit when picking leaves, leaving no leaves, believing that this not only reduces labor costs, but also reduces nutrient consumption. In fact, this is unreasonable. After all the leaves at the lower part of the fruit are removed, on the one hand, the leaves of the plant are greatly reduced, which reduces the formation of photosynthetic products, which is easy to cause insufficient nutrient supply of the plant; on the other hand, there is no shelter from the lower leaves. Direct sunlight around noon will cause the ground temperature around the root system to rise, which is not conducive to the growth of the root system. Therefore, do not remove all the leaves in the lower part of the fruit, and reserve one or two functional leaves appropriately.

How to prevent rain in arch shed

Rainfall is concentrated in summer. Due to the small spacing and long length of arch shed, rainwater on the shed film pours down without time to seep down. Rainwater accumulated on both sides has no place to drain and can only enter the shed from both sides of arch shed, especially the arch shed with low terrain. Rainwater is easy to pour into rainwater from both sides or periphery, resulting in serious root diseases.

Therefore, it is suggested that the drainage ditch should be dug at the walkway between the two arches and at both ends of the arch shed. The drainage ditch is about 50 cm deep to ensure that rainwater can be discharged in time when it rains.

In addition, vegetable farmer friends can also set rain film on both sides of the waist wind of the arch shed.

Some vegetable farmers choose not to remove the film when it rains. Although this can prevent rainwater from entering, the heat and moisture in the shed cannot be dissipated. It is far from enough to cool down only by releasing air from the top.

It is suggested to set up another layer of film on both sides of the arch shed, the width of the film is 70- 80cm, the lower part is covered with soil about 20cm, and the upper part is lifted; then the insect net is installed according to the size of the air vent on both sides. The width of the insect net is generally 1.3m. In this way, when rain falls, both sides of the arch shed are provided with rain shielding films, which can form simple drainage channels, prevent rainwater from pouring into the shed, prevent pests from flying into the arch shed, and effectively release air.

For conjoined large arch shed, it is suggested to set "drainage groove" in the middle of shed roof to solve the problem of difficult drainage and enhance the rainproof ability of shed facilities.