a. Seedbed preparation sites should be selected soil loose, fertile, convenient irrigation plots, high-quality fertilizer applied per hectare 30 to 45 tons, 300 kg of urea and appropriate amount of vegetation ash. After ploughing and cultivating, the bed is generally 80cm wide and it is easy to cover the mulch. b. The seeding material of sowing parsley is fruit, water absorption and germination are relatively slow, and soaking and germination are often performed in production. Generally when the seeds are “whiteningâ€, sowing is started. The sowing method is sowing or drilling. The row spacing is 10~13cm. The seedbed is 2.0~2.5g per square meter, and the field is 19.5~22.5kg per hectare. Cover fine soil 0.5 ~ 0.7cm after sowing, and cover the straw to keep warm moisture. c. Seedling management After 5 to 7 days after sowing, seedlings may emerge, and the covered straw should be promptly removed. 1 when the center of the leaves and the seedlings begin, after the emergence of leaves and seedlings once each. Calendar seedling age of 30d, physiological seedling age with 4 to 5 true leaves can be planted. d. Planting planted celery planted fields should be avoided, and the soil should be fertile and loose. Each hectare pig manure 30 tons, 15 tons of human excrement, plus superphosphate 375kg, potassium sulfate 75kg, after mixing, spreading, plowing, the excrement mixed, made into a wide 80 ~ 120cm plowing field. Planting spacing 20cm, spacing 15cm, planting 270,000 per hectare. Fill the planting water and cover the mulch with open field cultivation. e. Field management should be timely tillage and weeding, and the cultivator should be cultivated 3 to 4 times, and cultivators should be employed after each harvest. The growth period should generally be top dressing 3-4 times, each topdressing urea 105 ~ 120kg per hectare, and foliar spraying 0.3% of potassium dihydrogen phosphate solution 300 ~ 450kg per hectare. f. Pest control In the early stage of disease, leaf spot can be sprayed with 65% doxorubicin 500 times solution or 50% carbendazim 500 times solution, sprayed once every 7 to 10 days, and sprayed for 2 to 3 times. The aphids can be sprayed with 40% dimethoate 2000 times or 20% cypermethrin 6000 times spray. g. Harvested from 80 to 90 days after sowing began harvesting, in order to harvest the middle 3 to 4 leaves is appropriate.
Hydrolyzed Sponge White Powder
Sponge
Chengdu Sino Tech company , https://www.cnherbfun.cn