Celery planting method
A, celery planting season: celery seeds can germinate at 4 ℃, the optimal temperature for germination is 15-18 ℃, during the growth period does not tolerate high temperatures, the average daily temperature of 21 ℃ or more celery's growth is poor, and prone to disease, reduce quality. Celery is a cold-tolerant vegetable, the seedling period can withstand the low temperature of minus 4 ℃ -5 ℃, the adult plant can withstand the low temperature of minus 7-8 ℃.
Two, sowing seedling method: celery cultivation is generally the most summer and fall sowing, summer sowing, due to high temperature and dryness, the growth of seedlings is unfavorable, it must be transplanted using seedling. First of all is the preparation of seedbed, usually choose in the water source is convenient, good drainage, back of the place to build seedbed, bed soil rich in organic matter, water retention and fertilizer, loose, high nitrogen content of fertile soil.
Three, live methods: In addition to the summer and fall planting need to seedling, other seasons planting is to take the method of direct seeding planting, the use of seeding method with a large amount of seeds, per mu with the amount of seeds of about one kilogram, sowing with the seeds of small cabbage with the mix, the use of the first seedling of small Chinese cabbage plants to the celery shade to promote celery seedling and seedling growth, waiting for the small Chinese cabbage grow up to pull out, the celery has also become a seedling, can grow in place until harvesting, and can also be used as a seedling, and can be used to grow in place until harvesting. It can be grown in place until harvested.
Four, celery planting: celery for shallow root vegetables, main root developed, strong lateral root regeneration, suitable for seedling transplantation. The main root group of celery is distributed in the topsoil layer of 7-10 centimeters, and the lateral distribution is about 30 centimeters in diameter. Generally choose fertile, loose, water- and fertilizer-retaining loam or sandy loam soil for cultivation, turn the land over more than 20 cm deep, and apply rotted organic fertilizer, 1000-2000 kilograms of rotted farmyard manure, 8-10 kilograms of procalcium, and 100-200 kilograms of grass ash per mu.
Five, field management
1, inter-seedling, weeding: direct seeding of celery after sowing generally 7-10 days after the emergence of seedlings, after the emergence of seedlings, should be combined with inter-seedling in a timely manner to pull out the weeds and small cabbage seedlings. Inter-seedling is generally carried out 2 times, the first time in 1-2 true leaves, thinning out poor seedlings, weak seedlings, leaving seedlings about 3 cm apart, the second time in 3-4 leaves, this time if the seedling, seedling spacing 12-15 cm.
2, 20-30 days before harvest, you can use growth stimulant nine two zero spraying plants once, the concentration of 20-50ppm, can make celery quality tender, yield increase. Spraying needs to be carried out in the morning and evening, and fertilizer and irrigation are also required after spraying to play a greater role.
3, pest control: celery has fewer pests and diseases than other vegetables, and the common pests and diseases of celery are spotted wilt and aphid damage.