How to do intensive seedling breeding in spring?

    1. Strengthen the forecast of severe weather

    At this stage, the solar greenhouse is the main facility for vegetable seedlings. The weather conditions will be favorable for the growth of seedlings as a whole, but the temperature in early spring is unstable, and cold, cloudy days, haze days, and windy days may occur from time to time. It is necessary to strengthen the monitoring and forecasting of severe weather, and make technical plans for disaster prevention and mitigation.

    2. Strengthen the environmental management of seedlings

    Strengthen the maintenance and management of seedling facilities, and improve the airtightness and thermal insulation of solar greenhouses and greenhouses. Under the premise of ensuring the temperature during the day, the northern solar greenhouse should uncover the thermal insulation quilt as early as possible and at night. After the temperature rises, the indoor multi-layer covering should be uncovered in time.

    3. Strengthen the precise supply of water and fertilizer at the seedling stage

    Implement differentiated water and fertilizer management according to the growth and development process of seedlings. The irrigation time should be chosen before 10 am on a sunny day as much as possible, and the irrigation water reserved in advance in the greenhouse should be used to avoid the direct use of cold underground tap water.

    Try not to water in rainy days to reduce the humidity in the shed. When the humidity is high, turn on the axial flow fan to enhance the air disturbance in the shed to avoid wetting or dew on the leaves. The nursery with conditions can also use bottom tidal irrigation and air dehumidifier to reduce the humidity. Humidity in the shed.

    Fourth, strengthen the whole process of prevention and control of plant diseases and insect pests

    The occurrence of pests and diseases is conditional and regular. To prevent and control overwintering vegetable diseases, it is necessary to coordinate the relationship between heat preservation and ventilation and dehumidification, make full use of agricultural control measures, and flexibly use chemical spray control and fumigation control methods. Implement timely prevention and control, adhere to symptomatic prevention and control, and choose the right time and appropriate spraying equipment for prevention and control.

    5. Strengthen the safety prevention and control of nursery farms

   Vegetable nursery farms are relatively labor-intensive, and the internal material handling, production operations, and commodity seedling transportation and sales in the nursery farm are highly fluid. At the same time, the air in early spring is dry and windy weather is prone to occur.

One is safe operation. Establish fire prevention, electricity, and equipment safety operation specifications to avoid personal injury and property damage.

The second is production safety. Strictly prevent and control the epidemic in accordance with the requirements, and ensure a safe working environment for nursery workers.

The third is safe and orderly emergence. Whether farmers come to the base to raise seedlings or transport and sell seedlings long-distance, they should be isolated and disinfected, and seedlings should be sent at the wrong time.