As the temperature rises, leafy vegetables grow better this way!

Vegetables play an important role in people's diet structure

Vegetables are an important source of vitamins and mineral salts that the human body needs. Leaf vegetable is an important vegetable type, which takes leaves and petioles as products, including cabbage, rape, lettuce, cabbage, leek, fennel and so on.

After entering February, the temperature gradually rises and the light time increases, which is more and more suitable for the growth of leafy vegetables in the facilities. The amount of leafy vegetables on the market increases, but problems such as bolting in spring gradually increase, affecting the commodity of vegetables. In this case, it is particularly important to do a good job in the postharvest management of leaf vegetables. Agricultural experts recommend that you do this:

Encourage timely harvesting

Early spring season is very suitable for the growth of leaf vegetables due to sufficient light, fast temperature rise and large temperature difference between day and night. Producers should adjust the harvesting standards according to the market needs, taking into account factors such as yield and selling price, so as to achieve timely harvesting and appropriate early harvesting, so as to keep the good commodity of leaf vegetables and improve the yield of leaf vegetables. The quantity of vegetables on the market gradually increases, and the price tends to decrease. Appropriate early harvest can reduce the risk caused by the price decrease. The collection standards of enterprises, parks and cooperatives shall be formulated according to the appearance quality requirements of the sales channels, and the collection shall be conducted at the appropriate harvesting maturity according to the sales needs. The earlier the harvesting time should be after dew drying, the better to avoid leaf vegetables with water mud, affect the commercial property, affect the post-harvest preservation.

Applied preservation technology

The rate of vegetable loss is high, and the rate of leaf vegetable loss is higher. According to the characteristics of different leaf vegetables, according to the use to determine the harvest standard, to ensure the reasonable harvest maturity, reasonable harvest time, so as to ensure the storage tolerance of vegetables. Attention should be paid to water control before harvesting to improve the storage endurance of leafy vegetables. The temperature difference between morning and evening is large, and attention should be paid to heat preservation, moisturizing, cold damage prevention and rot prevention after harvesting. Adopt insulation and moisturizing measures such as film covering, heat preservation being covered, wet cloth covering, increasing environmental humidity and other measures to keep the temperature and humidity of vegetable body, keep the storage environment temperature and humidity, so that leaf vegetables in the most suitable preservation conditions. Pay attention to the reasonable connection of all links after harvest, maintain the quality of leaf vegetables, extend the freshness period of vegetables.

The packing method should be reasonable

Good packaging can maintain the marketability of leafy vegetables, avoid mechanical damage, reduce the problems affecting the marketability such as rot, and reduce the rate of leaf vegetables loss. Leaf vegetable packaging should match the brand image. Binding, wrapping paper and plastic wrap, packaging box, packaging bag for leaf vegetables commonly used packaging methods. Air-conditioned packaging is a new type of packaging. By adjusting the composition of gas in the packaging, it can inhibit respiration and avoid anaerobic respiration problems, avoid yellowing, Browning, rot and other problems, greatly reduce the rate of leaf and vegetable loss, reduce the resulting economic losses, and extend the shelf life.

Proper household storage

The temperature of the cold room of the household refrigerator is generally 2-6℃, and the temperature of leaf vegetables is 0-5℃. Leaf vegetables are suitable for storage in the household refrigerator. When storing baby spinach, lettuce and other young vegetables with high water content, you can use clean paper to wrap. The paper can absorb part of the water, so as to reduce the humidity of leafy vegetables and avoid the rot caused by high humidity. The storage time of leaf vegetables is long and the content of nitrous acid is increased. Therefore, the family storage time of leaf vegetables should be reduced as far as possible to ensure the quality and effectively reduce the loss rate.