How to do planting tomato plants in the greenhouse?
Tomatoes grown in greenhouses are so long and mad, not flowering, no result, what is the cause of cockroaches? How to prevent and control? During the nursery period, the greenhouse temperature is above 35°C during the day and above 25°C at night, the duration is too long, and the temperature difference between day and night is small; after planting, The temperature is still maintained at 35 ° C for a long time, which is the main reason for the seedlings to be long, difficult to flower, and small flowers.
Specific measures: After three leaves, cool down between 11 am and 3 pm to differentiate more flower buds. The main ways to reduce greenhouse temperature are:
1. Pour cold water around the greenhouse, absorb heat by evaporation of water, and reduce the temperature of the greenhouse;
2. Drain the water in the large ditch, that is, ditches and drains the water in the middle of the tomato tart. Be careful not to let the water soak the tomato root to avoid anaerobic respiration causing damage to the tomato;
3. Use the sunshade net at noon, the radiation can be blocked when the sun is strong, and it can also have a good cooling effect;
4. Install spray cooling facilities to cool down;
5. Apply a growth inhibitor, such as chlormequat, but pay attention to the concentration, otherwise it will affect the quality of the tomato.
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