Causes of formation
The fundamental reason for the formation of empty seedlings in the shed is that the shed is often high temperature and humidity. The seedling period is too long, the seedling period is generally 6~7 days, during this period, it is required to seal the greenhouse, can not be ventilated, the greenhouse temperature is maintained at 30 °C ~ 35 °C, and the grass curtain should be covered around the shed at night to keep warm and anti-freeze, so as to accelerate the slow seedling. If the seedling period is too long, the duration of high temperature and high humidity in the greenhouse will be prolonged, which will easily cause the plant to grow in the state of "fake live".
Ventilation is not timely. After slowing the seedlings, it is necessary to ventilate in time to reduce the greenhouse temperature to 28 °C ~ 30 °C, and then whenever the greenhouse temperature is higher than 30 °C, it is necessary to release air to cool down. Otherwise, the temperature in the shed is high, the transpiration of the soil and plants is strengthened, the relative humidity in the shed will exceed 60%, the first door pepper is difficult to sit down, the first fruit can not sit still, and the growth of the plant is aggravated, resulting in a vicious circle, so as to form an "empty seedling".
Preventive measures
After planting, the greenhouse should be tightly closed and covered with grass curtains at night to promote slow seedlings; After slowing the seedlings, under the condition of maintaining a certain temperature, it is necessary to boldly release the wind to reduce the humidity in the shed. Maintain the greenhouse temperature of 28 °C ~ 30 °C in the early stage, and slowly reduce the greenhouse temperature standard in the future, and maintain 20 °C ~ 25 °C in the flowering and fruit setting period.
When the minimum outside temperature is not lower than 15 °C, ventilation should be carried out day and night, so that the bell pepper plant grows short and strong, with short internodes and more fruit set; Strengthen water and fertilizer management.
Bell pepper leaves are small, the amount of water transpiration is not large, do not water too much when planting, slow seedlings to harvest before, generally not easy to water, otherwise, it is easy to cause flower and fruit drop.
When the first layer of fruit begins to be harvested, watering and fertilization should be strengthened, and more organic fertilizer, phosphorus and potassium fertilizers should be applied to facilitate the yield of sweet peppers and improve the quality of fruits.
Bell pepper "empty seedling" how to avoid the introduction here, I hope it will be helpful to everyone. If you want to buy high-quality and high-yield bell pepper seeds, you can download the seed bank App, and the country's excellent bell pepper varieties are available for everyone to choose.
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