Early winter green vegetable anti-freezing coverage technique

Abstract

The invention discloses an early winter green vegetable anti-freezing coverage technique which is characterized in that a crop of green vegetables can be planted in a place only harvesting one season of grain crops to the north of the Yellow River, a plastic film covers the unsold green vegetables before freezing in late autumn, so that sales period can be prolonged, the plastic film can resist slight cold, and the unsold green vegetables can be prevented from cold injury and can be protected. After corns are harvested, land is immediately plowed, seeds are sowed to reach the width of 0.5 meter and form a 0.5 meter aisle during seeding, two sides of the plastic film covering the green vegetables are pushed down by soil, so that sales time of the green vegetables can be prolonged, the plastic film is removed during sales, the unsold green vegetables are covered again and prevented from freezing after harvesting, and the sales period of the covered green vegetables can be prolonged by 20 days to 30 days as compared with that of open-air green vegetables without being covered by the film.

Description

Technical field [0001] The invention is an antifreeze covering technology for early winter green vegetables, which belongs to the field of agricultural planting. Background technique [0002] In northern China, after the corn is harvested, the temperature is still higher in some places, and a crop of greens can be planted. However, because greens cannot be sold out in time, they are often frozen, causing losses to growers and affecting planting enthusiasm. Summary of the invention [0003] The present invention is to cover a layer of plastic film on the vegetables that have not been sold before being frozen, so that the sales period can be prolonged. The plastic film can withstand slight cold, so that the unsold vegetables can be protected from frostbite. protection. detailed description [0004] After the corn is harvested, immediately plow the land. When sowing, plant the vegetables to a width of 0.5 meters and a walkway of 0.5 meters. Before freezing, cover the greens with plas...

AI Technical Summary

Problems solved by technology

[0002] In northern China, after the corn is harvested, the temperature in some places is still high, and a batch of green vegetables can be planted. However, because the green vegetables cannot be sold out in time, they are often frozen, which causes losses to the growers and affects the enthusiasm for planting.