Common misunderstandings of vegetable plastic film mulching

There are many varieties of vegetables in our country, and no matter what vegetables are planted, it is very necessary to cover with plastic film. Vegetable planting and plastic film mulching can effectively enhance the growth ability of vegetables and improve their yield and quality. However, many people have a lot of misunderstandings when covering plastic film. So what are the specific ones? The following editor brings you a common misunderstanding of vegetable plastic film mulching, let's have a look!

1. the plastic film is close to the base of the stem.

If the plastic film is not properly covered, it can easily lead to a variety of diseases in vegetables. When covering plastic film, many people will choose to keep the plastic film close to the base of the stem of vegetables, which is wrong and can easily lead to the death of vegetables. When we are opening the mouth of the plastic film, it is best not to cut the plastic film and use our hands to cut open a larger opening to avoid healing and keep the diameter at about 6 cm. If the temperature is high, roll up both sides of the plastic film in time to avoid the rise of low temperature. By the same token, the plastic film should be spread out in time when the temperature drops. Then clamp the plastic film adjacent to it with a clip to prevent the plastic film from touching the stem.

2. Cover the whole shed close to the ground

When covering the plastic film, some vegetable farmers will directly cover the whole shed with plastic film. Then, during the agricultural operation, the plastic film is trampled heavily, causing it to stick closely to the ground, thus reducing the air permeability of the soil. This hinders the respiration of vegetable roots, resulting in stunted development of vegetable roots and a decrease in yield. And when we are covering the plastic film, it is best to use materials such as steel wire to prop up the plastic film, so that the plastic film can be covered on the strut and can be watered under the film. In this way, it can not only improve the permeability of the soil, but also drain moisture in time and avoid excessive humidity. If it is an operating line, it is best to cover crop straw, which is very beneficial to its growth.

3. Covering prematurely

The early covering time of plastic film is also a misunderstanding for many people. When we cover plastic film, we should adjust and control reasonably according to the change of weather and the type of planting. For example, after planting cucumbers in autumn, plastic film will be covered if the surrounding environment is higher. It will not only lead to high temperature in the plastic film and stuffy seedlings, but also increase the surface humidity, which is very disadvantageous to the root system of crops, thus affecting the squatting seedlings of crops. Therefore, when we cover plastic film, we must pay attention to its weather conditions, usually about half a month after planting to improve the healthy rate.

4. Film mulching only in the operation line

Many people will only choose to cover the plastic film on the operation line, but turn a blind eye to the planting line. And covered with plastic film in this way, not only can not achieve the effect of plastic film mulching. On the contrary, it will also lead to more obvious disadvantages, affecting the growth of crops. The main purpose of plastic film mulching is to avoid excessive humidity in the shed and cause diseases. When we are watering, it is generally based on the planting line, if the planting line is not covered, then basically can not play the role of reducing humidity, insulation is also basically no. And the soil permeability of the operating row will decrease sharply, which will seriously affect the growth of crop roots.

The above is a brief introduction to the common misunderstandings of vegetable plastic film mulching. That's all for today's introduction. This article is for reference only. I hope it can help you all.