2. Raise seedlings. When raising seedlings, first adjust the bottom soil of the seedbed, then prepare nutrient soil according to the ratio of garden soil to decomposed organic fertilizer of 3∶ 1, spread 10 ~ 15 cm, and water the soles of feet. 75 ~ 100 g of seeds for planting 667 m2. First, the seeds were soaked in warm water at about 40℃ for 24 h (hours), and then the washed and dried fine sand was evenly mixed and spread on the seedbed, covered with fine soil with a thickness of about 1 cm, and the proper germination temperature was kept at 15 ~ 20℃ and 10 ~ 60.
3. Seedling management. After emergence, the border surface should always be moist, and the seedlings should be thinned when the leaves are 2 ~ 3, usually 2 ~ 3 times. Apply dilute water and fertilizer for 5 ~ 6 times, mainly nitrogen fertilizer in the early stage, and increase phosphorus and potassium fertilizer in the later stage. When the seedlings grow to 3-4 leaves and the height is 6-7 cm, remove the film and harden the seedlings, which requires controlling water and promoting roots. The seedling age is generally about 60 d (day), the seedling height is 10 ~ 15 cm, the leaves are 4 ~ 5, the thickness of the base is 3 ~ 5 mm, the leaves are fresh and tender, there are no yellow leaves, and it can be planted when the roots are white.
4. planting. Combined with ploughing and soil preparation and fertilization. Choose strong seedlings and big seedlings and plant them all around. The planting depth is suitable for burying roots. Generally, the plant spacing is 20 ~ 30 cm. All localities can flexibly determine the planting density according to market demand. ?
5. Fertilizer and water management. 1 Water must be thoroughly watered when planting, and the soil should be kept moist frequently in the future. /kloc-after 0/5 ~ 20 d (days), the soil should be kept dry and wet, and intertillage, loosen soil and weed.
In the vigorous growth period, about 30 days after sowing, we should carry out flood and fertilizer management, with 1 time for 5-7 days, 1 0 ~1time for 5 days, and 20 kg urea or 15 kg diammonium phosphate for each time. Enter the high temperature season in June and July, pay attention to keep the water capacity in the field, and create a humid and cool growth environment for celery. Stop irrigation 7 ~ 10 days before harvest.
celery
Celery belongs to Umbelliferae. There are two kinds of cress and celery, which have similar effects. Celery is the best medicine. Celery has a strong aroma, also known as "celery".