What's the function of bird proof netting?

Vineyard bird netting

Regarding the protection of grapes, many farmers will think that it does not matter, and half of them think it is necessary. For grape racks, all grapes can be covered. Strong anti-bird nets are more suitable, and the fastness is relatively better. For ordinary varieties, It is completely acceptable to farmers. The cost is relatively low. Compared with ordinary knotless fishing nets, it is relatively lightweight. For some high-quality fruits, anti-bird nets can be recommended. They have relatively high fastness and can be used for more than 5 years. High-density polyethylene can also last for more than 5 years and the cost is lower.

What you should note about cherries is that some customers will think of using small pieces of netting to cover individual trees. They prefer small-sized nets. Cherries and other fruits are relatively seriously damaged by birds. Cherries It is cost-effective and sometimes causes farmers to lose their harvest.

The fruits produced in Japan mainly include citrus, apples, pears, grapes, "rich" persimmons, etc. According to statistics from the Japan Agricultural Cooperative, the pear fruit area in Japan in 1999 was 16,900 hm2, with an output of 390,400 tons and a market volume of 361,300 tons. The main producing areas with an area greater than 1000hm2 are Tottori, Ibaraki, Chiba, Fukushima, and Nagano prefectures; the counties with an output greater than 10,000t include Chiba, Tottori, Ibaraki, Nagano, Fukushima, Tochigi, Saitama, Fukuoka, Kumamoto and Aichi.

There are a large number of birds in Japan and they are serious about pecking fruits. To avoid bird damage, anti-bird nets are installed around and above the pear orchards to prevent birds from flying into the pear orchards;

Anti-bird nets are also commonly used at airports in Japan. Under normal circumstances, the likelihood of encountering a bird strike is greatest when a flight has just taken off or is about to land. Because most common birds such as sparrows and pigeons fly below 100 meters. When flights fly to an altitude of 800-1,000 meters, they may encounter eagles or vultures, causing relatively large losses.

In some areas of China, the fruit planting area is so large that farmers think it is okay for birds to eat part of it. Compared with Japan, fruits in Japan are calculated on a per-unit basis, so it is easier to see the losses after calculation. And the use in Japan is already very mature. Japanese pears are of high quality and have a lot of fragrance, so they are susceptible to bird damage. At the same time, in order to prevent hail attacks, pear growers often set up multi-functional protective nets above the greenhouse gardens. The protective net is made of nylon, with a mesh size of about 1cm3, and is placed above the scaffold 1.5 meters away from the shed surface. This can prevent bird damage and effectively avoid hail attacks. Therefore, we can still promote the use of anti-hail anti-bird nets.

Airport bird netting

In addition, rice is the only crop among all crops in Japan that has a 100% self-sufficiency rate. In 1998, the rice planting area in Japan was 1.79 million hectares, the output per unit area was 507 kilograms per 10 acres, and the total annual output was approximately 9.46 million tons. The new rice planting technology is called "direct seeding cultivation technology", which consists of the falling water sprouting method and a high-precision on-demand seeding machine. At present, this new technology has been basically developed, and the future task is to popularize it. The popularized area in 2000 was 8,900 hectares. In addition, bird damage prevention technology and the development of excellent varieties suitable for direct seeding will be important issues in the future.

All in all, the range of use of anti-bird nets is quite large, and bird damage has always been a concern for everyone. No matter which country you are in, there is a development trend.