NY/T 5092-2002 Technical specification for the production of pollution-free food celery
Some standard content:
ICS65.020.20
Agricultural Industry Standard of the People's Republic of China
NY/T5092—2002
Pollution-free food
2002-07~25 Issued
Technical regulations for celery production
2002-09-01 Implementation
Issued by the Ministry of Agriculture of the People's Republic of China
NY/T5092-
This standard is proposed by the Ministry of Agriculture of the People's Republic of China. Foreword
The drafting units of this standard are: National Agricultural Technology Extension Service Center, Hubei Plant Protection Station, Beijing Plant Protection Station, and Vegetable and Flower Research Institute of Chinese Academy of Agricultural Sciences.
Main drafters of this standard: Zhao Zhonghua, Yan, Shi Shangbai, Zheng Jianqiu, Li Baoju194
1 Scope
Technical regulations for the production of pollution-free food celery
This standard specifies the production environment requirements and production technology management measures for the production of pollution-free food celery. This standard applies to the production of pollution-free food celery. 2 Normative references
NY/T 5092—2002
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB4285 Pesticide Safety Use Standards
GB/T8321 (all parts) Pesticide Rational Use Criteria NY/T496 Fertilizer Rational Use Criteria General
NY5010 Pollution-free Food Vegetable Production Area Environmental Conditions GB16715.5--1999 Melon Crop Seeds Leafy Vegetables 3 Production Area Environment
Should comply with the provisions of NY5010.
4 Production Management Measures
4.1 Cultivation Season
Spring cultivation: Seedling cultivation and planting in winter, and market in summer. Summer and autumn cultivation: Seedling cultivation and planting in summer, and market in autumn. Autumn and winter cultivation: Sowing in late summer and early autumn, and market in winter. 4.2 Seed Selection and Treatment
4.2.1 Variety Selection
Select varieties with long petioles, solid, less fiber, high yield, good stress resistance, and strong resistance to diseases and insect pests. 4.2.2 Seed quality
The seed quality meets the quality index of celery varieties in GB16715.5-1999, i.e., purity ≥92%, cleanness ≥95%, germination rate ≥65%, and moisture ≤8%.
4.2.3 Seed treatment
4.2.3.1 Disinfection
Use 48℃ constant temperature water to soak the seeds for 30min while stirring constantly, then take them out and soak them in cold water. 4.2.3.2 Seed diffusion
Soak the seeds in cold water for 24h. During the soaking process, the seeds need to be rubbed several times to facilitate water absorption. 4.2.3.3 Germination
Take out the soaked seeds, rub them with clean water, drain the water, wrap them with gauze with good air permeability, cover them with a wet towel, and germinate them at 15℃～20℃. When 30%～50% of the seeds are white, they can be sown. 195
NY/T 5092—2002
4.3 Seedling cultivation
4.3.1 Seedbed preparation
Select a field with convenient drainage and irrigation, loose and fertile soil, good fertilizer and water retention performance, and no Umbelliferae crops have been planted for 2 to 3 years as the seedbed. Apply 25kg of decomposed organic fertilizer, 100g of nitrogen, phosphorus and potassium compound fertilizer (15-15-15) and 50g of carbendazim per square meter, plow the fine soil, and make a high field with a width of 1m~1.2m, a furrow width of 0.3m~0.4m, and a furrow depth of 0.15m~0.2m. 4.3.2 Seeding amount and sowing methodbzxZ.net
For every 667m2 of cultivated field, celery seedlings need 150g~～180g of seeds in summer and autumn, and 100g~120g in winter and spring; celery needs 20g~25g of seeds. First, water the bottom thoroughly, sprinkle a thin layer of soil after the water seeps down, then sow the seeds, and cover with 0.5cm~0.6cm of fine soil. Then cover with a thin layer of wheat straw or rice straw to keep moisture, and it can also cool down and prevent rainstorms in summer. But be careful to remove the ground cover immediately after arching the soil. 4.3.3 Seedling management
4.3.3.1 Temperature management
For seedlings in winter and spring, cover with mulch and greenhouse for heat preservation, and remove the mulch after the seedlings emerge. As the temperature rises, gradually increase ventilation. In summer and autumn, the seedlings are covered with double net film (shade net plastic film), and a small arch shed with ventilation, rain protection and cooling is built on all sides. 4.3.3.2 Fertilizer and water management
During the entire seedling period, attention should be paid to watering and the soil should be kept moist. Watering should be done frequently with small amounts of water. Seedlings should be raised in the morning and evening in summer and autumn, and in the morning on sunny days in winter and spring. Apply 0.2% urea once after the seedlings are all grown, and then apply it every 10d to 15d to promote the growth of seedlings. 4.3.3.3 Weeding and thinning
After sowing and before seedlings emerge, 150ml. to 200ml of weed killer (or other herbicides) can be used, mixed with 70kg to 100kg of water and sprayed on the surface to prevent weed damage during the seedling stage.
When the seedlings have two true leaves, thin them out with a seedling spacing of 1cm. Thin them out 1 to 2 times later to make the seedling spacing reach about 2cm. Water them in time after thinning.
4.4 Land preparation and basal fertilizer application
After the previous crop is harvested, timely plowing should be carried out. For medium fertility soil, 3000kg~5000kg of decomposed farmyard manure and 40kg~50kg of triple compound fertilizer (15-15-15) should be applied per 667m2. Deep plowing should be carried out to 20cm to fully mix the soil and fertilizer, and the soil should be finely raked and leveled according to local planting habits. 4.5 Planting
4.5.1 Planting density
For every 667m2 of celery, 25,000~35,000 plants should be planted in summer and autumn, 35,000~45,000 plants in autumn and winter, and 9,000~10,000 plants in western celery.
4.5.2 Planting method
Stop watering 3d4d before transplanting, take the seedlings with soil using a claw shovel, and plant them individually. The planting depth should be the same as the soil depth of the seedlings on the seedbed, and the heart leaves should be exposed.
4.6 Field management after planting
4.6.1 Shading and rain protection
After planting in summer and autumn, cover the shade net immediately to shade and cool down. The shade net should be covered on sunny days and uncovered on cloudy days; covered in the morning on sunny days and uncovered in the evening. When it rains, a film should be added to the shade net to block rain and prevent rainwater from entering the greenhouse and causing diseases. 4.6.2 Fertilizer and water management
Water in time after planting, and water the seedlings after 3d to 5d. 10d~15d after the planting value, apply 5kg of urea per 667m2, and apply topdressing once every 20d~~~25d, with 10kg of urea and potassium sulfate per 667m2. Stop topdressing and watering 10 days before harvest to reduce nitrate content and facilitate storage. Topdressing should be done between rows. In summer, it should be done in the morning and evening. Watering at noon will cause a temperature difference on the surface of the plant, leading to seedling death. Watering should be controlled in late autumn and winter. Watering should be done at 10 or 11 o'clock on sunny days. Attention should be paid to strengthening ventilation and dehumidification to prevent and control diseases caused by excessive humidity. 4.6.3 Intertillage and Weeding
Celery grows slowly in the early stage and is often harmed by weeds, so intertillage and weeding should be done in time. Intertillage is usually combined with weeding before each topdressing. Since the root system of celery is shallow (especially for seedlings that have been divided), intertillage should be shallow, as long as the purpose of weeding and loosening the soil is achieved. It should not be too deep to avoid damaging the root system and affecting the growth of celery.
4.6.4 Insulation Management
NY/T5092---2002
In autumn, when the temperature is below 12℃, the shed should be covered in time, and the shed should be covered and the ground should be warmed 10 days before planting in spring. Generally, ventilation starts when the temperature reaches 20℃, and the temperature is maintained at 15℃～20℃, and not lower than 10℃ at night. The temperature is low in December, and it is best to add a small shed to keep warm at night to prevent frost damage and facilitate continued growth.
4.7 Pest and disease control
4.7.1 Principles of pest and disease control
Implement the plant protection policy of "prevention first, comprehensive control", select resistant varieties, cultivate strong seedlings, strengthen cultivation management, apply fertilizers scientifically, improve and optimize the vegetable field ecosystem, and create an environment conducive to the growth and development of celery; give priority to agricultural control, physical control, and biological control, and cooperate with the scientific and reasonable use of chemical control to control the damage of celery pests below the allowable economic threshold, so as to achieve the purpose of producing safe, high-quality and pollution-free celery.
4.7.2 Physical control
4.7.2.1 Insect-proof net isolation
Under the condition of facility cultivation, set up insect-proof net isolation at the vent to reduce the occurrence of insect pests. 4.7.2.2 Set up yellow boards to kill aphids
Use 30cm×20cm yellow boards, at a density of 30 to 40 per 667m2, and the hanging height should be level with the top of the plant or 5 cm to 10 cm higher.
4.7.3 Chemical control
4.7.3.1 Strictly implement the relevant national regulations, and do not use the following highly toxic and high-residue pesticides: methamidophos, methyl parathion, parathion, monocrotophos, phosphamidon, phorate, methyl isofenphos, terbufos, methyl thiocyanate, chlorpyrifos, systemic phosphamidon, carbofuran, fenthiocyanate, chlorpyrifos, chlorpyrifos, fenthiocyanate, fenamiphos, 666, dichlorobenzene, toxaphene, dibromochloropropane, insecticide, dibromoethane, herbicide, aldrin, dieldrin, mercury preparations, arsenic, lead, diclofenac, fluoroacetamide, chlorpyrifos, tetramine, sodium fluoroacetate, tetramine.
4.7.3.2 When using pesticides for prevention and control, GB4285 and GB/T8321 (all parts) must be strictly implemented. 197
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