The most important effect of rainy days is the high temperature and low light, insufficient photosynthesis, which causes the supplement of organic nutrients to keep up with the consumption.
â‘ Replenish fertilizer in time: before the arrival of rainy days, supplement leaf nutrition in time to improve photosynthesis. Root irrigation and topdressing are carried out in time to improve root activity, increase nutrient absorption, and increase plant resistance. It should be noted that more attention should be paid to the weather forecast, and topdressing should be carried out before the continuous rainy days, so as to prevent the soil from being dry in cloudy days but unable to replenish water normally and thus affect the growth of vegetables.
â‘¡Ventilation and cooling: The temperature in summer is higher, even if it is rainy, the temperature will be higher than in other seasons. In this case, the respiration consumption of vegetables will increase. However, due to insufficient light in rainy days, the nutrients produced by photosynthesis cannot be supplemented and consumed in time, which may lead to physiological problems in plants. Therefore, before the arrival of rainy days, ventilation and cooling must be done to reduce nutrient consumption. At the same time, it can also do proper thinning or reduce dipping flowers to retain fruit, which can also reduce nutrient consumption and facilitate balanced nutrient distribution.
â‘¢Keep the balance of moisture absorption
Sunny days after rainy days often cause vegetables to wilt. The principle is that the absorption and dissipation of water is out of balance. Therefore, do a good job of shading after continuous rain and avoid excessive sunlight, so that the vegetables can adapt to the sudden arrival of sunny days, which will help the root system to restore water absorption capacity after a long time of rainy days. At the same time, proper sprinkling can be done to increase air humidity and reduce leaf moisture evaporation.
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