Method for controlling hollow celery:
1. Variety selection: Choose high-quality celery with high purity and good quality, and use new high-fat membrane seed dressing to avoid underground pests and diseases, isolate virus infection, not affect germination and swelling function, strengthen respiratory intensity and increase seed germination rate. .
2. Cultivation techniques: Choose plots that are rich in organic matter, have good water retention and fertility, and have good drainage and irrigation conditions. Under the same conditions of fertilizer and water, it is prone to hollow disease in areas with strong salt and alkali, heavy weight, large sandy soil and serious pests and diseases. Cultivate celery in the shed, the temperature in the daytime is 18 °C ~ 23 °C, not more than 25 °C, 13 °C ~ 18 °C at night, not lower than 10 °C, the ground temperature is 13 °C ~ 18 °C. The base fertilizer should be applied, and the fertilizer should be applied to the fertilizer in the growing season. The fertilizer should be timely and the fertilizer should not be de-fertilized. In the vigorous growth period, it should be continuously supplied with water for fertilizer. It should be used once every 15-20 days, and the vegetable Zhuanglingling and Xingao lipid film powder should be used together. It can play the role of internal meridian conditioning and outer skin protection for plant growth and development. effect. After the medicine is used, the nutrient digestion and metabolic energy of the vegetables are improved. Only when the fertilizer is applied and watered in time can it develop rapidly. The new high-fat film has the effect of promoting the growth of celery. However, only when the water and fertilizer supply is sufficient, the management measures are proper, and the celery itself is relatively thick and sprayed, the effect of increasing production can be achieved.
3. Harvest period: The harvest period of celery is not obvious, as long as the long achievements should be harvested in time. If the harvest period is late, the petiole is aging, the ability of the leaves to produce nutrients is reduced, and the root absorption capacity is weakened. At this time, the parenchyma cells in the petiole are broken due to aging and insufficient nutrition to form a hollow phenomenon.
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