1. Cultivation season in the summer cool areas can be cultivated in spring and fall. 2 to March in the greenhouse and other protected nursery seedlings, planted in May, harvested in mid to late August. Or in May seedlings, planted in mid to late July, harvested in October. Or late June seedlings, planted in early September in the greenhouse, harvested in November. Because the fleshy roots are suitable for expansion in a cool environment, the growth process, in the temperature from high to low conditions, easy to get high yield. Hot summer areas, only suitable for fall cultivation.
2. Seedling soil method of seedling, hole tray seedling can be, I think the soil method of seedling is easier to get strong seedlings. Because of the root of celery to double hanging fruit as seed material, its fruit skin thick and firm, and have oil glands, not easy to absorb water, germination is slow and untidy. Therefore, the germination of a pass is very important, must be soaked in seed, and rubbed in the soaking of seed. Soak the seeds at a temperature of 20 ℃ to 30 ℃, time 8 to 10 hours can be. Then wash the seeds, drain the water, mix with fine dry soil, and sow on the seedbed. Seedbed can be flat bed or small raised bed, bed soil should be broken and raked, apply enough fermented bottom fertilizer, watering bottom water. Seeds are sown as sparsely as possible, eliminating the need for seedling splitting and reducing damage to the root system. Afterwards, use the furrow irrigation to water a small amount of water, so that the seeds are in full contact with the soil. The optimum temperature for seed germination is 10℃ to 25℃. When the seeds germinate, cover with medicated soil (seedlings are susceptible to sudden collapse disease) at a thickness of 0.5 centimeters, do not water to prevent the soil from becoming compacted, and the seeds develop on the bottom water of the seedbed. To be the top of the buds out of the soil, and then watering, to small water irrigation principle, keep the soil moist. Seedling age is generally 70 to 90 days. Specifically depending on the nursery conditions and seedling growth.
3. Planting choose deep soil, well-drained plots, clean the field before planting, deep turning of the soil, applying sufficient base fertilizer, watering the bottom of the water. The planting density of root celery is generally about 7000 plants per mu. Due to the root of celery root system is not easy to recover after injury, planting should be careful digging seedlings, to prevent injury to the root, and try to transplant with soil, in order to facilitate root recovery and seedling survival.
4. Field management is the same with general root vegetables, seedling watering to "less watering and diligent watering" as the principle. Leaf growth period "the ground is not dry not water, the ground white only water". Flesh root growth period should be uniform water supply, appropriate application of phosphorus, potash fertilizer, especially potash, to promote the rapid expansion of fleshy roots. Flesh root growth later, should still be appropriate watering, to prevent hollow. Throughout the growth period, old and diseased leaves should be removed in a timely manner to reduce the spread of pests and diseases, in order to facilitate ventilation and light.
5. Harvesting and storage is generally harvested after the fleshy roots are fully expanded. Too early low yield, too late easy to hollow or hollow formation in storage. Storage at 0 ℃ to 5 ℃, up to 2 months long.