1. It is not advisable to do big loquats to clean the drains. Every vegetable farmer should do high-row cultivation. Because of the high groundwater level in winter, and the weather is more rainy, it is easy to cause the soil moisture to be too large, thus causing root collapse phenomenon. At the same time, the surface of vegetables is vulnerable to cold damage, which may greatly cause the phenomenon of dead vegetables sprouting in open field. Most of the varieties of open-field vegetables grown in winter are leafy vegetables and some cold-resistant vegetables such as onion and garlic. Winter solanaceous vegetables are thermophilic, so they must not be planted in open fields.
2, timely fertilization. It is advisable to spray high-quality foliar fertilizers such as Huilongbao and American Stars on the vegetables in the area before the arrival of the cold, so as to improve the cold resistance of the vegetables and reduce the occurrence of rotten vegetables and frostbite.
3, keep warm. In addition to draining the ditch, before the arrival of the cold, it is necessary to cover the vegetables by covering rice straw, shade nets, and non-woven fabrics to keep warm and breathable. It is not recommended to use a film because the film is not air-permeable, but it will increase the moisture, and it will easily cause rotten vegetables, damage the foliage, and affect the sales.
Planting facilities
The arrival of strong cold air is unavoidable. Therefore, it is necessary to pay attention to the cultivation of facilities: Before the advent of strong convective weather, it is necessary to tighten the shed film and do a good job of windproof and solid film. Snowfall occurs during winter months. Before snowing, the sheds should be compacted. This can increase the temperature inside the shed, allowing the snow on the shed film to melt faster, thus reducing the possibility of snow overhanging the scaffolding.
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