ask:

How do I manage the release of strawberries?

The temperature and humidity management of strawberry cultivation in facility cultivation is the focus of the cultivation and management of strawberry out of season in winter. Many people think that strawberry temperature and humidity management is simply to control the temperature and humidity of strawberries by opening and closing the air vents in time. In actual production, many ventilation management operations are not scientific and reasonable. Combining my more than ten years of facility cultivation experience, I will talk about some tips and details in ventilation management, hoping to help the majority of growers.

1. Correct ventilation operation:

Maybe many people don't take it seriously when it comes to air venting, thinking that it is as simple as opening the air vent. In fact, otherwise, there are great skills in venting. If the tuyere is operated with a film roll machine, relatively speaking, the problem is not big, but in many large-scale greenhouses, the wind is mostly manually operated. Here mainly talk about the correct operation of manual operation:

1. The opening and closing width of the tuyere should be consistent. The opening and closing widths of the air outlets cannot be different, which will easily cause uneven temperature in the facility, especially avoiding holes in the air.

2. To open the air vents for the greenhouse to cool down, the waist vents should be first, then the top vents; after cooling, the vents should be closed, the top vents first, and the waist vents back. To open the air outlet for the purpose of dehumidification, the top air outlet and the back waist air outlet should be opened first; the air outlet should be closed after the moisture is discharged, and the waist air outlet should be first, then the top air outlet.

The greenhouse cools and removes humidity, and the opening and closing of the air vent are carried out evenly at the same time.

2. Precautions for operation in sunny days:

On a sunny day, due to the good light and the greenhouse effect of the facilities, the temperature difference between indoor and outdoor is large, especially in winter, the temperature difference between inside and outside can reach more than 20℃. At this time, the air release is mainly based on cooling and dehumidification. When ventilating, pay attention to adjusting the size of the wind-proof vents according to the temperature in the facility at any time. Never open the vents in place at one time based on experience for other management operations indoors, so that the temperature in the facility will drop sharply, which is not harmful to the growth of seedlings and flowers. . It is advisable to open and close the air outlets a little at a time to keep the temperature in the facility relatively stable.

3. Precautions for ventilation operation in continuous rainy days:

Most people think that it is not suitable for wind operation on cloudy and rainy days. It is ok to keep the wind on 1-2 days. However, if the wind is not operated for a long time in continuous rainy days, various problems are prone to occur. Therefore, continuous rainy days should It is advisable to carry out appropriate air release operations at the right time according to weather conditions.

After 2-3 days of continuous rainy days, choose a rain-free noon time for a short period of time (15-30 minutes is appropriate) to properly open the air vents to remove moisture (mainly open the top air vents) and air exchange (open the top air vents and waist air vents) ). Continuous rain and rain, the air in a closed facility is completely oversaturated for 2-3 days, and once the rain stops outside, the humidity of the air flowing outside is less than that of the air in the facility, so the ventilation management is helpful to reduce the humidity and air exchange in the facility , Is conducive to the growth of seedlings.

Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone