Benefits of covering vegetables with plastic mulch
1. Raise the ground temperature
One of the obvious effects of plastic film mulching is to increase soil temperature. Covering with plastic film in spring sowing can increase the ground temperature by 2℃-4℃, seedling emergence move up 6-12 days, and the seedling stage grows well. Greenhouse vegetables are mostly winter and spring stubble and autumn stubble. When winter and spring stubble vegetables are transplanted before and after New Year’s Day, plastic film mulching can raise soil temperature well. Before transplanting, we must prepare the land, make good boundary, and cover it with plastic film.
2. Maintain soil moisture and cool down
Film mulching can effectively prevent soil moisture from evaporating and maintain soil moisture for a long time. Under higher moisture conditions, it is easier to slow the growth of seedlings after planting vegetables. Plastic film can also reduce the occurrence of various diseases, because the humidity in the greenhouse is very high, and it is easy to cause low temperature and high humidity diseases such as gray mold, wilt, soft rot.
3. Improve soil fertility
After the plastic film is covered, the soil is not easy to form, and has good aeration, which is conducive to the decomposition of organic matter and nitrification of nitrogen. Due to the warming of the plastic film, it is conducive to the activity of soil microorganisms, promotes the decomposition of organic matter, and improves the fertility of the soil.
4. Inhibit the growth of weeds
After the weeds come out, they will die soon due to the high temperature under the mulch and poor ventilation.
Different vegetables have different requirements on temperature: Cabbage, lettuce and other cold vegetables require 15-20℃ during the daytime and 6-10℃ at night; tomatoes, eggplants, peppers and cucumbers require 20-30℃ during the daytime, 15-20℃ at night.
Nine kinds of mulching methods of vegetable mulch film:
Suitable for vegetables such as cucumber, green pepper, tomato, eggplant, etc.: lay film with 90-100 cm width and 0.01-0.008mm thickness on the high-border surface, and the two sides of the mulch film are buried under two-thirds to three quarters of the top of the border. The specifications of the high border are: border width 100-110cm, border surface width 80-85cm, border height 10-15cm. The furrow width is 30-40cm. When doing bordering, the border center should be slightly higher, which is conducive to tight laying film.
Suitable for green onion, cabbage and other vegetables: flat border width 100-110cm, border length can be customized according to the plot. Before planting, the mulch film can be spread on the border surface and compacted with soil around.
Suitable for vegetables such as green pepper and cabbage: the bottom width is 73cm, the surface width is 40cm, and the height is 17cm. Cover the ridge surface with mulch, and plant two or three rows for each ridge.
Suitable for kidney beans: bottom width 53cm, ridge surface width 33cm, height 16cm. Cover the ridge surface with mulch.
Suitable for Chinese Cabbage and Radish Vegetables: Covering the furrow surface with plastic film, can promote its growth and bring it to market early.
Suitable for vegetables such as green pepper, cucumber, cabbage, tomato, etc.: Make a groove of 40-50cm wide and 15-20cm ditch on the high-border surface, plant the seedlings in the groove, and then cover with plastic film. After emergence, pierce the plastic film on the top of the plant, and lead the seedling out of the film after late frost.
Suitable for potatoes: On the high-bordered ridge or large ridge, use a hole punch to plant 15cm deep planting holes according to the plant row spacing, plant the seeds or vegetable seedlings in the holes, and then cover the plastic film. After the seedling emerges, the plastic film is pierced.
Suitable for green peppers, cucumbers, eggplants and other vegetables: break the big ridge into double ridges, sow or plant the seeds or seedlings on the inner gang of the double ridges, and then cover the mulch to grow the seeds or seedlings between the two ridges for a period of time, after late frost, the seedlings are led out of the plastic mulch.
Suitable for vegetables such as horn melon, cucumber, green pepper: When the vegetables are planted, use wicker, bamboo to make arches on the furrows or ridges, the width and height are 33cm, then cover the plastic film, compact the soil around the plastic film, after the night frost, the small greenhouse can replace to mulch film.
Our plastic mulch product: http://www.pe-film-china.com/product-category/mulch-film