What are the key management points for leafy vegetables after early spring harvest?
March is a period when temperatures rise rapidly, and with abundant sunlight at this time, it is very suitable for the growth of leafy vegetables. Although we are currently in a special period, express delivery and transportation are gradually recovering, and as the market volume of leafy vegetables increases, their supply is also returning to normal. So post-harvest management of leafy vegetables becomes extremely important. Let's take a look together below.
1. Timely harvesting
In early spring, sunlight is abundant. Although temperatures rise relatively quickly, nighttime temperatures are still fairly low. This is very suitable for the growth and development of leafy vegetables. Growers should adjust the harvesting standards for vegetables according to market changes, comprehensively consider factors such as yield and price, and achieve timely harvesting. This improves the marketability of leafy vegetables and reduces the risk of lowering market prices and affecting returns due to concentrated harvesting and marketing.
2. Avoid bolting
For leafy vegetables, from the start of sowing, the range of temperature changes is very large. For example, Chinese cabbage, baby cabbage, cabbage, lettuce, and others are extremely prone to vernalization due to low temperatures. Therefore, attention should be paid to measures for the vegetables. Once bolting is found, they should be harvested early to avoid losing commercial value due to bolting and causing extremely large losses.
3. Reasonable fresh-keeping packaging
Before harvesting leafy vegetables, attention should be paid to controlling watering. In early spring, the temperature difference between day and night is relatively large. After harvesting, attention should be paid to keeping them warm and moist to prevent chilling injury and rot. After harvesting, they should be promptly covered with plastic film to avoid being left exposed, and fresh-keeping methods for vegetables should be reasonably selected to effectively extend the storage period. Leafy vegetables should be packaged with wrapping paper, packing boxes, and packing bags to extend the fresh-keeping period. At the same time, during harvesting and transportation, try as much as possible to avoid breaking stems and leaves, reduce mechanical damage, lower the loss rate, and reduce the economic losses caused by this.
4. Proper household storage
After buying them and bringing them home, also pay attention to refrigerating them promptly. The temperature of the refrigerator compartment in a household refrigerator is generally 2-6 degrees, while the suitable fresh-keeping temperature for leafy vegetables is between 0-5 degrees, so they are very suitable for storage in a refrigerator. In addition, when storing sprout vegetables with high water content, such as baby spinach and baby leaf lettuce, they can be wrapped in clean paper, because paper can absorb part of the moisture, thereby reducing the humidity of the leafy vegetables and avoiding rot caused by excessively high humidity.
The above is an introduction to the key management points for leafy vegetables after early spring harvest. We hope it can help you. To learn more related knowledge, please follow us.