What's with the hollow celery? How to prevent and cure?

Celery is widely planted in China, and it is easy to appear a hollow phenomenon when planting, which will affect the income. So what's with the hollow celery? How to prevent and cure?

What's with the hollow celery?

1. Temperature and light

Celery has certain requirements for temperature and light during its growth. if the temperature is too low or the light is insufficient, it will lead to freezing and weakening of photosynthesis of celery leaves, insufficient accumulation of nutrients, and reduction of root absorption, resulting in hollow.

2. High temperature and drought

Celery tastes crisp and tender, which means that it has more water content, so there are certain requirements for water when planting. If the soil is too dry, resulting in a lack of water, the lack of water will hinder its absorption and transport of nutrients. Achievement thought there would be hollow symptoms.

3. Insufficient fertilizer

The root system of celery is shallow and underdeveloped, so the ability to absorb fertility is weak, we should pay attention to the method of fertilization, and we need to apply phosphate fertilizer at the initial stage of growth. if the lack of phosphate fertilizer will lead to seedling growth thin, leaf differentiation and other symptoms, hollow phenomenon will appear in the late growth stage.

4. Soil

Celery can adapt to slightly acidic or slightly alkaline soil, many plants like loose and fertile sandy loam, while celery likes more fertile clay loam, planting on sandy loam will lead to hollow.

5. Harvest too late

Celery hollow and harvest time is too late, hollow is an aging phenomenon of celery, if the harvest is too late, its stem fiber tissue continues to increase, and the root absorption capacity decreases, so that the stem and leaf aging, the phenomenon of malnutrition, resulting in hollow.

Second, how to prevent and control celery hollow?

1. Methods to prevent celery from being hollow

(1) selection of improved varieties

When buying seeds, you should buy them from trusted departments and choose varieties that are adaptable to the environment, resistant to adversity and stable in growth.

(2) Control the temperature and light well.

Keep the temperature at 15-23 degrees when planting, and not less than 10 degrees at night, so that it can grow normally, strengthen light, increase its photosynthesis, accumulate more nutrients, but its strong irradiation.

(3) strengthen fertilizer and water management.

When fertilizing, we should pay attention to the time method, it is suggested to give priority to base fertilizer, topdressing as auxiliary, base fertilizer can choose mature organic fertilizer or farm manure, topdressing can use rarefied manure water, as little as possible chemical fertilizer, soil selection is not easy to choose sandy loam.

(4) keep the leaves with strong photosynthesis.

Timely control of celery diseases and insect pests, maintain a strong photosynthetic capacity of leaves, adequate supply of nutrients needed by parenchyma cells in petiole, so as to make the plant grow strong. In addition, and the harvest is also an important measure to prevent the hollow phenomenon.

2. The method of treating celery hollow.

Celery hollow is a physiological aging phenomenon, which occurs in petiole, pulp part of petiole, aging of cells in petiole pulp and conducting tissue, loss of vitality of cell liquid gelatinization and voids in cell membrane. In general, it is difficult to repair celery hollow by medicine, so it can only be prevented to the maximum extent in the process of planting.