Recently, the weather has changed drastically, the air humidity has increased, the number of rains has been frequent, and the frequency of occurrence of hail and short-term wind damage has increased. Since vegetables are mostly broad-leaved herbs, their edible organs are generally tender and juicy, so the hail has a great impact on vegetables. Therefore, the technical treatment of hail rehabilitation is very important to reduce the economic losses of vegetable farmers, and special attention should be paid to production. Generally, different measures should be taken to resume vegetable production according to different crops and different damage levels.
1. According to different types of vegetables
1. Eggplant fruits are vegetables with strong regeneration ability. If they are less damaged by hail, the plants can be properly trimmed and then applied with a quick-release fertilizer (nitrogen fertilizer) to promote the early emergence of new shoots and leaves, which can restore production capacity faster. . If the seedlings are damaged or the adult plants are more seriously damaged, the crops should be replaced as appropriate and some fast-growing vegetables should be replaced.
2. After the injury of legumes and vegetables, due to their weak plant regeneration and regeneration ability, the suitable sowing period is longer, and the rebroadcasting cost is relatively low, so the residual leaves and leaves are generally cleared and replanted, and production can be resumed after 1 month.
3. Due to the large leaf area, melon vegetables are greatly affected by hail, and melon vegetables have a long growth period and a long seedling period. Therefore, except for cucumbers, other vegetables that are severely affected should be replanted. However, because the method of melon vegetable site fertilization and opening is quite different from other vegetables, it is generally possible to replant a season of 40 to 60 days of fast-growing leafy vegetables, and then harvest another season of autumn extension vegetables without changing the ridge direction after harvest.
4. Due to the short growing period of fast-growing leafy vegetables, another season can be replanted within half a month after the disaster.
2. According to the degree of disaster
1. For plots with severe losses and terrible harvests, it is necessary to seize the time for replanting, and leaf vegetables such as spinach, baby cabbage, bean, lettuce can be broadcast live according to the situation.
2. Take different measures according to different crops for the loss of about 50%: tomatoes, beans and cucumbers with strong branching ability can be grown on the side branches; for cabbage and lettuce without branching ability can be planted with beans and other elevated vegetables.
3. Take the foliar fertilizer to lighten the disaster to improve photosynthetic ability and enhance the resistance to stress. 0.1% urea and 0.3% potassium dihydrogen phosphate can be sprayed, or "Bihu" and other foliar fertilizers can be sprayed. Once every 7 days, spray 3 times in a row. And spray medicine in time to prevent disease, you can use carbendazim 500 times solution, once every 7 days, spray 3 times in a row.
Third, the impact on facility vegetables
The severe impact of hail on vegetable production is also manifested in the devastating damage to large and small arch sheds and seedbeds. The hail is coming violently and cannot be prevented, but it is not long. Therefore, after the hail is over, the worn film and the stumps and leaves of the plant should be quickly removed, and the shed film and the seedlings should be covered in time to minimize the loss.
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