One, select seed germination
Before celery planting, first choose a good variety, requires high temperature resistance, drought resistance, disease resistance, strong adaptability. After selecting seeds, drying seeds, celery seeds are fine and slow to germinate, need to germinate seven days before sowing, use 10% warm salt water to soak for 10 minutes, gently scrub, rinse with water for 3-4 times, drain the water from the soaked seeds, wrap them in gauze, keep the temperature at 15-20 ℃, turn them over every day for 2-3 days, and then sow them after the seeds have germinated.
Two, sowing seedlings
Celery sown in March-September each year, the appropriate sowing period is May-June. Watering to keep the seedbed moist, evenly sowing seeds to the soil surface, regular watering, prompting the seedlings to come out as soon as possible.
Three, seedling management
Celery seedlings, in the seedling period to do a good job of shade and sun protection measures to reduce the temperature in the growing environment. When the first true leaves of the seedlings unfold, you can appropriately reduce the number of watering, remove the shade net, if necessary, with a watering, to avoid being burned by the sun. Inter-seeding of celery seedlings, seedling spacing 1-2 cm, the 2nd-3rd true leaf period for the 2nd inter-seeding, seedling spacing of about 3 cm, wait until the seedling 3-leaf period, the number of watering times can be appropriately reduced.
Four, planting
Planting time is generally in the middle and late July each year, in the seedling age of 45-50 days, the seedling height of 10-15 cm or so can be planted. In the planting before the base fertilizer and soil mixed thoroughly, each mu can be planted more than 34,000 plants, after planting watering and moisturizing.
Celery planting time
1, spring celery planting time
North January to March protected nursery, March to April open field planting, May to July harvest. The Yangtze River basin in March for the appropriate sowing period, sowing too early, seedlings receive a certain low temperature, easy to pass through the vernalization stage, caused by undercooked shoots, sowing too late, late into the hot summer, affecting yield and quality.
2, summer celery planting time
Spring frost break open ground seedlings, June to early July planting, August to September harvest market. Summer celery in the hot and rainy season, poor growth, dead seedlings, low yield, planting area is not large.
3, fall celery planting time
Northern June to early July sowing seedlings, August to early September planting, October to November harvest. The Yangtze River Basin in early July to early September sowing, October to December harvest, late sowing in the following March to April before the end of the harvest before the draw, winter celery. In the Yangtze River basin and the south can be cultivated in the open ground, sown in September to November, harvested in December to April. In the north can be protected cultivation.
Reference: Baidu Encyclopedia-Dry celery (Umbelliferae celery plants)