1, build seedbed

Seedbed should choose a cool plot with convenient irrigation and drainage, and deep ploughing and drying. For the configuration of seedbed soil, fertile pastoral soil and fully decomposed manure were screened according to the ratio of 4∶6, then fully mixed, and the bed soil was disinfected with carbendazim and thiram wettable powder.

2. Seeding and seedling raising

Celery can be cultivated in spring and autumn. Spring is usually in late March, and autumn is in the middle and late July. Soak the seeds for 12~ 14 hours before sowing, then gently rub off the old skin, put it at 20℃ to accelerate germination for 4~6 days, and sow after exposure. When sowing, water is poured on the soles of the feet first, then 1 layer of bed soil is covered after water infiltration, and seeds are evenly spread on the bed surface and then covered with 0.5 cm of bed soil. 75 grams should be planted every 667 square meters.

3. Soil preparation and transplanting

Apply sufficient base fertilizer on the selected land, and make ridges after deep ploughing and fine trimming, with a width of1.2m.. When the seedlings grow to 3-4 true leaves, transplant the seedlings according to the seedling spacing of 8cm~ 10cm, the plant row spacing 10 cm× 20 cm, and the density18,000 plants /667 square meters.

4. Field management

Attention should be paid to watering during the growth period to keep the soil moist. Celery seedlings grow slowly, so weeds should be pulled out in time to prevent grass damage. If the plant shows fertilizer deficiency, it can be topdressing 1 time to raise seedling fertilizer, and applying ammonium sulfate 10 kg every 667 square meters.

5, pest control

Because of its special smell, celery has relatively few pests and diseases. The main pests are caused by aphids; The common disease is early blight, which should be prevented and treated in time.

Extended data

Growth conditions:

1, soil: the requirements for soil are strict, and loam or clay loam with rich, loose, good aeration and strong water and fertility conservation is needed. The optimum soil ph is 5 ~ 7.

2. Moisture: Small celery belongs to shallow root vegetables, with weak water absorption capacity, weak drought tolerance, large evaporation capacity and strict water requirements. After sowing, the bed soil should be kept moist to facilitate the emergence of seedlings. Soil and air should be kept moist during vegetative growth.

3. Illumination: Celery is shade-tolerant, and it needs to be covered with a sunshade net before emergence. It likes medium-intensity illumination in the peak period of vegetative growth and needs sufficient illumination in the later period.

4. Temperature: the optimum temperature for plant growth 15~20 degrees Celsius. Strong cold tolerance, seedlings can tolerate low temperature of -4~-5 degrees Celsius, and growing plants can tolerate short-term low temperature of -7~- 10 degrees Celsius. Not heat-resistant, it is easy to grow in vain and the mesophyll becomes thinner when the temperature is high.

Baidu encyclopedia-parsley