Second, advance sheds. In order to rejuvenate the seedlings as soon as possible after planting the vegetable seedlings, the greenhouse is required to reach an optimum temperature, especially for vegetables such as tomatoes, eggplants, cucumbers, etc. These vegetables have higher requirements for the temperature and temperature of the ground, requiring 5 to 10 The ground temperature of centimeters must reach above 15°C, and the minimum temperature must not fall below 10°C in order to grow normally. Therefore, 10 days before the planting of vegetable seedlings, the greenhouse should be covered with a plastic film to close the greenhouse and raise the temperature. Third, timely planting. In early spring, the temperature is unstable, and it is prone to cold weather such as plunge cold, strong wind cooling, and snow freezing. Vegetable seedlings must pay attention to listening to the weather forecast before planting, and require no cooling and cloudy snow weather within 5 to 7 days. . Fourth, strengthen insulation. After the planting of seedlings, we must strengthen the insulation work to promote the seedlings. Within 3 to 5 days after planting, the greenhouses should be enclosed and the winds should be released. The daytime temperature is maintained between 28 and 30°C and the nighttime temperature is maintained above 20°C. In case of strong winds and cool weather, cover the insulation at night to prevent excessive heat dissipation at night, causing the temperature of the greenhouse to fall too quickly. In addition, the laying of crop stalks in the operation line can not only increase the ground temperature, but also reduce the humidity in the shed, which is conducive to the healthy growth of vegetables. Body building products : Body care products, 4-Aminobenzamidine Dihydrochloride,Bulk Fluorogesterone Acetate Powder,Bulk Fluocinolone Acetonide Powder,Clomiphene Citrate Powder,
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First, low temperature hardening seedlings. Low-temperature hardening seedlings can significantly enhance the low-temperature tolerance of vegetable seedlings, which is beneficial to the early emergence of seedlings after planting. The low-temperature hardening seedlings are generally carried out 7 to 10 days before the vegetable is planted and cannot be used for too long. Nursery bed temperature during the day in 15 ~ 20 °C, reduced to 8 ~ 12 °C at night, in order to improve the cold resistance of seedlings. The temperature of seedbed during low-temperature hardening cannot be too low, otherwise it will affect the normal physiological function of the root system, and prone to aging and stiff seedlings, affecting normal growth.