Four points of management before and after planting vegetables in early spring

January 23, 2024

First, low temperature refining. Low-temperature refining can significantly enhance the low temperature tolerance of vegetable seedlings, which is conducive to the early planting of vegetables and early seedlings. Low-temperature refining is generally carried out 7 to 10 days before the plant is planted, and it cannot be too long. The daytime temperature of the nursery bed is controlled at 15-20 Â°C, and it is lowered to 8-12 Â°C at night to improve the cold resistance of the seedlings. The temperature of the seedbed should not be too low when the low temperature refining seedlings, otherwise it will affect the normal physiological functions of the root system, and it is easy to appear aging seedlings and dead seedlings, which will affect normal growth.
Second, detain the shed in advance. In order to slow down the seedlings after planting the seedlings, it is necessary to reach a suitable temperature for the greenhouse, especially for tomato, eggplant, cucumber and other fruits and vegetables, these vegetables have higher requirements on the temperature and temperature of the ground, requiring 5 to 10 The ground temperature of centimeters should reach above 15 Â°C, and the minimum temperature should not be lower than 10 Â°C in order to grow normally. Therefore, 10 days before the vegetable seedlings are planted, the greenhouse should be covered with a plastic film to seal the chamber and raise the ground temperature.
Third, timely planting. The temperature in early spring is unstable, and it is prone to cold weather such as cold spring, strong wind cooling and snow freezing. Vegetable seedlings must pay attention to listening to the weather forecast before planting. It is required to have no cooling and snowy weather within 5-7 days. .
Fourth, strengthen insulation. After the seedlings are planted, it is necessary to strengthen the insulation work to promote the seedlings. 3 to 5 days after planting, the shed should be closed, and the wind should not be released. The daytime temperature is maintained between 28 and 30 Â°C, and the nighttime temperature is maintained above 20 Â°C. In the event of strong winds and cool weather, cover the insulation at night to prevent excessive heat dissipation at night, causing the greenhouse temperature to drop too fast. In addition, laying crop straws in the operation line can not only improve the ground temperature, but also reduce the humidity in the greenhouse, which is conducive to the healthy growth of vegetables.
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