Welcome to the official website of Shandong Zhongnong Gerui Agricultural Group Co., Ltd!

HOME >> NEWS >> The heat wave continues to cool the vegetables in the shed

The heat wave continues to cool the vegetables in the shed

Recently, many places in the north of China have been hit by high temperature and heat waves, with a long duration and strong intensity rarely seen in the same period.

In such high temperature weather, we need air conditioning, fans "life", greenhouse vegetables are also in urgent need of cooling, there are many cooling methods commonly used by vegetable farmers, but in practical application, there are widespread misunderstandings, how to cool down to be more scientific and effective?

The sunshade covering method should be scientific

Covering the sunshade net is the most common cooling method for vegetable farmers in the high temperature season, but the wrong covering method will affect the cooling effect and even play a negative role.

First, the sunshade net is best not close to the shed surface.

Black sunshade net absorbs more heat, will directly transfer heat to the shed film, shorten the life of the shed film, at the same time, close to the cover of the shed heat loss is slow, can not achieve the ideal cooling effect.

Correct use: It is recommended to maintain a distance of 0.5 to 1 meters between the sunshade net and the shed surface to ensure that the air can flow between the sunshade net and the shed surface, which can accelerate the heat loss in the shed, and can play a good sunshade effect to reduce the heat storage in the shed.

For bases or parks, where greenhouses are relatively concentrated, automated shading equipment can be used.


Second, the shading time should not be too long.

Sunshade net covering time is too long, will affect the photosynthesis of vegetables, is not conducive to the normal growth of vegetables. Vegetable shading should be flexibly mastered according to the requirements of light intensity and temperature in combination with weather conditions, vegetable types and vegetable growth stages.

Materials used for shading, such as sunshade nets, are generally covered on sunny days and uncovered on cloudy days; Cover at noon, uncover in the morning and evening; Measures of early capping and late uncovering. If the weather is rainy and the temperature is not too high, after the planting of vegetables, the shading material can be covered only in the slow seedling stage. In addition, when a long Yin turns sunny or root disease occurs, vegetable farmers can also use sunshade nets to avoid the occurrence of plant wilting.

The use of greenhouse cooling agent should be appropriate

Preparatory work

Clean the dust on the shed film before spraying. The simplest and most efficient method is to find a long sweep 箒, and wrap the thermal insulation inside the cotton core or soft old clothes on the 箒, then tie the cloth tightly. Be careful not to use wire, in case it scratches the shed film.

Special reminder: The weather is fine after the rain, and the cooling agent spraying effect is the best, which can save the work of manually cleaning the dust of the shed film

Usage and dosage

When using, refer to the product instructions, dilute with water according to the required shading rate.

It should be noted that before opening the lid of the barrel, the cooling agent should be upside down and shaken well to prevent precipitation. When diluting, you can first add a small amount of water to the bottom of the sprayer, then add a cooling agent, and finally fill up the water. Then close the lid of the sprayer drum and shake well. You can also use a bucket to dilute the cooling agent in proportion, and then transfer it to the sprayer, and then spray it in sections from the bottom of the greenhouse.

640 (23).jpg

Matters needing attention

When you need to operate on the roof of the shed, you must pay attention to safety.

It is recommended to spray in clear, windless weather.

The cooling agent must be diluted with clean water and used now.

After spraying, clean the sprayer with clean water in time.

Using an electric sprayer, the better the atomization effect of the nozzle, the higher the quality of the spray.

When spraying, the nozzle can not be too close to the shed film, and the swing amplitude can be slightly larger to prevent the flow of droplets. Try not to leak, not to re-spray.

When spraying the cooling agent, pay attention to close the top tuyere to prevent the cooling agent from dripping on the blade.

Mobile phone station

Tel:+86 0536-5785800

Contact Fax: +86 0536-5505088

Contact email: sggrny@163.com

Contact website: http://www.zngragricultural.com

Address: Gerui agriculture, 20 / F, Shouguang e-commerce building, Shandong Province

Shandong Zhongnong Gerui Agricultural Group Co., Ltd

Bottom navigation


QR code

seo seo