What about the key points for selecting flour mesh?...

Nylon mesh as a cover cultivation is now a popular network. Insect nets should pay attention to the problem.

Nylon mesh as a pest control net should pay attention to the problem

1. Some vegetable farmers adopt a week before the harvest of the vegetables to uncover the net, restore the growth under the natural environment, turn the leaves to green, and the plants are strong.

2. After covering the insect net, the vitamin C and the clean vegetable rate are higher than the open field, and the appearance color is better than the open field. It is popular in the market, but the chlorophyll content in the leaves is relatively decreased, and the nitrate content is increased compared with the open field. This may be related to the insect net. Shading is associated with a warming effect.

3, due to the strong performance of insect nets, field management is more dry than the open field. The watering of cabbage is changed from water in the morning and evening to water in the morning, and it is generally not watered at night.

4. Proper use and storage of insect-proof nets After the use of the field, it should be timely pressed, washed, blown, and rolled to extend the service life and increase economic benefits. When used again, check the damage and block the gaps and gaps in time. .

5, insect-proof net is made of polyethylene as raw material, weaved by drawing, there is sunshade cooling effect, but in the process of use, the surrounding pressure is strict, the air circulation is not smooth, the temperature and humidity are relatively increased. The study found that the higher the outside temperature

, the greater the increase in temperature and humidity in the net, and the greater the effect of warming and humidifying the shed.

High temperature and high humidity are bound to be unfavorable to the growth of ve