What is the cause of celery hollowness in autumn and winter greenhouse

Celery cultivated in warm water in autumn and winter is easy to appear hollow and fiber increase, which greatly reduces the commodity value of celery and brings huge economic losses to farmers. So what causes celery to be hollow? How to prevent it? Let's get to know each other.

1, high temperature and low temperature environment

Celery cultivation in autumn and winter is mostly carried out through greenhouse, if the greenhouse temperature and humidity are not properly controlled in the cultivation process, long-term high temperature and low humidity environment is easy to lead to celery hollow. High temperature will accelerate celery tissue differentiation, while low temperature can not meet the plant's water needs, so that the plant pith tissue decomposition, resulting in celery hollow, fiber increase. Therefore, in order to avoid these situations, greenhouse cultivation must do a good job of temperature and humidity control temperature should be planted between 15-23 degrees, not lower than 10 degrees at night.

2. Insufficient fertilizer and water

Celery root system distribution is strong and underdeveloped, so absorption capacity is limited, once the fertility is insufficient, it is easy to appear hollow and fiber increase phenomenon. Therefore, once the fertilization is reasonable, more phosphorus should be applied at the seedling stage. Insufficient phosphorus will lead to thin seedling growth and leaf differentiation, and hollow will appear at the later stage. There is also autumn and winter cultivation celery, we are afraid of watering caused by the ground temperature drop, affecting the celery to normal growth, in fact, as long as watering appropriate, not only will not affect the celery growth, but also promote its growth. Generally watering once every half month, watering amount should not be too much, to small water, to harvest half a month before, to water twice.

3. Harvest too late

Celery hollow and harvest time is also related, if the harvest time is too late, its fiber tissue continues to grow, resulting in root absorption in summer, stem and leaf aging phenomenon, so there is hollow phenomenon. Therefore, we must pay attention to the harvest, the harvest must be timely harvest, must not delay the time, but the reaction.

The above is the introduction of what is the reason for the hollow celery in the autumn and winter greenhouse. I hope it can help you. If you want to know more about it, please pay attention to us.