Greenhouse chive growers must heed the warning of gale disasters

At 1 a.m. on October 20, a gale began blowing in Hujiakuo Town, Laoting County, and the wind speed only eased somewhat by around seven or eight o'clock that evening. As a result, many greenhouses, including chive sheds, were damaged. In our village alone, the plastic film was blown off more than a dozen greenhouses, causing varying degrees of loss to the vegetable growers and sounding a warning bell for every aspect of chive shed management. Here, I have summarized the following windproof lessons for reference.

1. Do not skimp on the plastic film for chive sheds

Most of the chive sheds damaged this time were caused by there not being enough surplus plastic film covering the shed frames. Even if soil was pressed down around the edges, when a gale came, the plastic film shook up and down and side to side, and after swaying and shaking for a long time, no matter where a single air leak appeared, the plastic film of an entire shed would instantly be lifted off, and human strength simply could not resist it. So how much surplus plastic film is best for covering a shed? Based on this lesson, observation showed that sheds with more than 40 cm of surplus plastic film outside plus sufficient soil, and sheds with more than 50 cm of surplus plastic film at both ends weighed down with enough soil, were relatively safe.

2. It is best to dig trenches along the sides of the shed to bury and weigh down the plastic film

Burying the plastic film in a trench makes the plastic film form a U shape in the trench, holding more soil, so its strength to resist gales is greater. Many of the sheds that were not blown down had their plastic film buried and weighed down in trenches.

3. The wire joints of the shed frame must never be twisted on the outside of the shed frame

Generally, shed structures are connected with iron wire, and the twisted joints of the iron wire are best twisted on the inner side of the cement posts or bamboo poles, so that they cannot come into contact with the plastic film. Once the twisted joints come into contact with the plastic film, not only will wind abrasion wear holes in it, but even after the plastic film is pressed tight, the powerful squeezing force will also make holes in the plastic film. If the twisted joints are already facing outward, then flatten the twisted joints so that the contact surface with the plastic film does not protrude too much, and then wrap them with a thicker piece of old clothing fabric, so that when you feel with your hand there is no protruding support point, to avoid puncturing the film.

Wang Lijuan, Donghuangkou Village, Hujiakuo Town, Laoting County