Celery is rich in protein, vitamins, minerals and other nutrients, and can lower blood pressure and diuresis, which is favored by people. Celery is one of the vegetables introduced abroad, and it is cultivated all over the country. The high-yield cultivation techniques of celery and autumn sorghum are now shared as follows:
1, variety selection
Ventura celery has large plant type, leaf fertilizer, light green petiole, semi-circular solid cross section, shallow ventral stalk, hypertrophy of petiole, compact petiole, crisp texture, less fiber and excellent quality. Loved by the public. Because it is about 80 days from planting to harvesting, the yield per plant is more than 1 kg, more than 6000 kg per mu, which is more resistant to celery virus, leaf spot and boron deficiency, and is favored by the majority of vegetable farmers.
2, sowing period selection
Ventura celery optimum growth temperature 15-22 ° C, higher than 25 ° C poor growth, prone to pests and diseases, higher than 30 ° C stop growth; below 5 ° C stop growth, dish shape and commercial properties will be affected; Short-term -10 ° C low temperature. In the northern part of the country, the post-autumn season is usually between the end of June and the beginning of July. Seedlings are planted in shades and cool places. They are planted in plastic greenhouses from the end of August to the beginning of September, and harvested in mid-November.
3, germination
Seeds should be germinated at low temperature first, soak the seeds in clean water for 24 to 48 hours, and soak them in the refrigerator; wash them with moist gauze and put them in the germination box at 15-20 °C, or hang them in well water. The germination is carried out at the position of 15-20 °C above the inner water. It is washed once a day with water. It usually starts to appear white after 5-7 days, and the seed is started after 30% white.
Prepare before planting. Seedbed seedlings are used, the seedling soil is selected from the special seedling substrate for vegetables, or the mixed substrate with the volume ratio of grass charcoal: vermiculite: perlite = 2:1:1, or the mulched soil can be laid, and the seedbed with a thickness of 10 cm is laid; The planting area ratio is 1:60, that is, planting 600 square meters, the seedbed area is required to be 10 square meters.
Sowing seedlings. The seedbed is watered, the groove is dipped every 8cm, the depth is 0.5-1cm, the strip is broadcast, the soil is about 0.3-0.5cm, and the water is sprayed; then the small arch shed is covered, and the black shade net is covered with the shading seedling
4, colonization
Prepare before planting. The day before planting, the seedbed will be drenched with water, and the seedling will be planted with the seedling; the organic fertilizer per mu of chicken manure will be 2-3 cubic meters, and the ternary compound fertilizer will be 40-50 kilograms. After deep turning; the width of the earthworm is 1.2 meters and the width of the earthworm is 20 centimeters. The height is 15 cm. The distance between the stalks and the celery is 20*20cm, and each line is 5 lines. When planting, the roots are not buried, the roots are not exposed, and the plants are irrigated after planting.
5, topdressing irrigation
Celery likes water and fat. Planting logistics watering, keeping the soil moist, is conducive to slow seedlings; in the early stage, it is mainly based on quick-acting nitrogen fertilizer. 10 days after planting, topdressing starts, 10 kg per mu, 7-10 days, 2 times in a row; Phosphorus and potassium fertilizers are mainly used to apply high-calcium potassium in vegetables, etc.; pay attention to the supply of calcium and boron, and if necessary, spray borax and chelate calcium to supplement nutrients.
6. Pest control
The main pests: locusts, for controlling aphids, can be hung in the shed to trap the yellow plate, if necessary, spray with imidacloprid or acetamiprid, or use the isopropan smog to smear better; In the early stage, the diseased leaves are removed or sprayed with avermectin. The main diseases: leaf spot, spot blight can be controlled by frost urea, manganese and zinc. Early blight can be used zinc, zinc, manganese, zinc; gray mold, pyrimethanil, multi-antibiotics.
7, harvesting
After planting, generally 90 to 120 days can be harvested, harvested once or harvested in stages.
The celery planting technique of celery can delay the peak period of vegetable marketing, improve the planting efficiency of celery, and thus improve the planting efficiency of farmers.
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