Detailed Explanation of the Latest Key Management Points Before and After Early Spring Vegetable Transplanting
In early spring, temperatures are relatively low. Transplanting vegetables at the right time not only helps the seedlings recover from transplanting, but also helps increase the plants' cold resistance. However, management before and after vegetable transplanting is also extremely important. So how should vegetables be managed before and after transplanting? Follow the editor to take a look.
1. Low-temperature hardening of seedlings
Low-temperature hardening of seedlings can significantly increase the cold tolerance of vegetable seedlings and help them recover after transplanting. Low-temperature hardening is generally carried out 7-10 days before vegetable transplanting. The hardening period must not be too long, otherwise it will cause frost damage to the seedlings. The temperature of the seedling bed should be kept at around 15-20 degrees during the day, and lowered to 8-12 degrees at night, so as to improve the cold resistance of the seedlings. During low-temperature hardening, the temperature of the seedling bed must not be too low, otherwise it will seriously affect the normal physiological functions of the root system, and root aging and seedling stunting are very likely to occur.
2. Cover the shed in advance
In order for the seedlings to recover slowly as soon as possible after transplanting, the greenhouse needs to reach a suitable temperature. This is especially true for fruit-type vegetables such as tomatoes, eggplants and cucumbers, which have relatively high requirements for soil temperature and air temperature. The soil temperature at a depth of 5-10 cm is required to reach above 15 degrees, and the minimum air temperature must not be lower than 10 degrees, so as to ensure their normal growth. Therefore, 7-10 days before the seedlings are transplanted, plastic film should be used to cover the spray area and seal the greenhouse to increase the soil temperature.
3. Transplant at the right time
Although temperatures are rising in early spring, the temperature is unstable, and adverse weather such as late spring cold, strong winds and cooling, and frost are very likely to occur. Therefore, before transplanting vegetable seedlings, be sure to pay attention to the weather forecast. It is required that there be no cooling or rainy and snowy weather within 5-7 days, so that it is beneficial for the vegetable seedlings to recover after transplanting. If there is adverse low-temperature weather in the coming days, transplanting should be delayed to avoid this period.
4. Strengthen insulation
After the seedlings are transplanted, insulation must be strengthened to promote the recovery of the seedlings. Within 3-5 days after transplanting, the greenhouse should be kept sealed without ventilation, and the greenhouse temperature should be appropriately raised to speed up seedling recovery. It should be kept at 28-30 degrees, and at night it should also be kept above 20 degrees. When strong winds and cooling occur, insulation materials should be added at night to avoid excessive heat loss at night, which would cause the greenhouse temperature to drop too quickly. In addition, laying straw or stalks between the rows can not only increase the soil temperature, but also reduce the humidity in the greenhouse and promote healthy seedling growth.
The above is an introduction to the key management points before and after early spring vegetable transplanting. We hope it can help you. If you want to learn more related knowledge, please follow us.