How is celery planted with high yield? Celery has three kinds of cress, celery and celery. It has the effects of clearing heat, diuresis, blood pressure, and rouge. Today's Xiaobian is about the environmental requirements of celery cultivation and the cultivation techniques. I hope that everyone can help.
First, the requirements of environmental conditions
1, temperature
a, celery belongs to the cold and gentle variety.
b. The most suitable temperature for seed germination is 18-25 degrees, and the lowest temperature is 4-6 degrees.
c, the most suitable temperature for the seedling period is 15-20 degrees, the low temperature that can be tolerated for a short time is minus 4 degrees to 5 degrees, and the high temperature can be tolerated for 30 degrees in a short time.
d, the root system can be wintering at a low temperature of about -15 degrees.
e, the most suitable temperature for the vegetative growth period is 16-20 degrees, more than 20 degrees will not lead to poor growth of celery, prone to disease, quality decline.
2, lighting
a, low temperature and long sunshine is conducive to the differentiation of flower buds in the celery seedlings, easy to make the spring celery uncooked convulsions.
b. If the celery trophic growth period is large, it will make the high temperature glare increase the fiber, which is not conducive to the growth of celery.
3, moisture
a, the root system is relatively shallow, mostly around 12-18cm, so it is not resistant to drought, need moist soil and air conditions.
b. During the growth period, if the surface is covered with white fibrous roots, sufficient water should be added, otherwise the celery will stop growing, the mechanical structure in the petiole will be developed, and the yield and quality will be reduced.
4, soil nutrition
a, soil selection: rich in organic matter, water retention and fertility, loam or clay loam.
b. Fertilization amount: For each 100kg of celery, 40g of nitrogen, 14g of phosphorus and 60g of potassium are needed. The plant of celery and nitrogen deficiency is short, and the petiole is easy to age and hollow.
c. Bored celery is prone to chapped, so it is necessary to replenish boron fertilizer in time, and apply 0.5-0.75kg of borax per mu.
Second, the cultivation system
1. Open cultivation time
a, spring and summer celery
80-90 days before the final frost, nursery seedlings are planted, 20-30 days before the final frost, planted in spring and summer, and harvested before and after the high temperature season.
b, autumn celery
Breeding in early summer, growing in the autumn cool season, harvesting in about 30 days after the frost, the growth period is 4-5 months.
c, winter celery
In areas with a minimum temperature higher than -5 degrees, direct seedlings or small plants can be used for wintering; in areas with a minimum temperature of -10, wind barriers and ground cover grasses are overwintered; in areas with a minimum temperature of -12 degrees or less, autumn celery roots are often used for storage. Wintering, planted after thawing in the spring of next year.
2, protection facilities cultivation times
a, celery protection land to winter
After winter, spring and autumn, it can be planted in large areas, and it can be cultivated with cucumber and tomato.
b, winter greenhouse celery
Shading seedlings in June-August, planting in August-October, and harvesting in the same period of April in April.
c, improved Yangshuo winter spring celery
Seeding is planted from late August to early September, and planting is carried out from mid-October to early November. It can be harvested from April to May.
d, autumn protection celery
Autumn shed celery: planted in late June, planted in mid-to-late August, harvested from mid-October to mid-November.
Small arch shed plus grass cover cultivation: seedlings in the middle and late June, planting in early September, and entering the harvest period in mid-December.
Third, choose excellent varieties
1. Variety of good commodity, good commodity, not easy to hollow, strong disease resistance, short growing period, protected land and open field.
2, common good varieties are: Harriet celery, Luricika celery, cool celery and so on.
Fourth, the cultivation techniques
1. Cultivation of winter celery in the greenhouse
a, June-August open-air shading seedlings, planted in the solar greenhouse from August to October, harvested from December to April.
b. Temperature requirement: indoor temperature is 20 degrees, night minimum temperature is 5 degrees, deep winter temperature can not be lower than 3 degrees, and the ventilation is increased when the temperature returns to temperature, and fertilizer water management is done well.
2. Improve the cultivation points of winter celery in Yangshuo
a, from mid-October to early November, planted in the impotence before the wind barrier, after planting, pour enough water, when the temperature is below 0 degrees, cover the grass to keep warm.
b. In the winter, when the night is frozen, the frozen water is frozen, and the manure and manure are added to enhance the cold resistance of the celery.
c. Reasonably remove the grasshopper before returning to green to prevent celery from being frozen.
d. In the second year from the end of March to the beginning of April, the fertilizer should be stormed and the indoor temperature should be within the range of 15-22 degrees.
3, the cultivation of celery in spring and summer in greenhouse
a. Sowing from late January to early March, cover the membrane after sowing, and cover the grass at night.
b. Ensure that the temperature is not less than 10 degrees before emergence.
c. In the early stage of spring celery growth, scientific watering and strengthening of cultivating.
d. During the vigorous growth period, it is necessary to increase the amount of water and fertilizer applied.
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