T/CDNX 017-2020 Active Group standards

T/CDNX 017-2020 Carrot selenium-rich cultivation technical specification

Publish Date: 2020-05-06 Implement Date: 2020-05-28 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CDNX 017-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Fruit and vegetable cultivation and products

ICS Name: Plant cultivation

Publish Date: 2020-05-06

Implement Date: 2020-05-28

Scope

Scope: This standard specifies the terms and definitions, production site environment, cultivation techniques, selenium-enrichment technologies, timely harvesting, and file management for the cultivation of selenium-enriched carrots. This standard applies to the cultivation of selenium-enriched carrots. Main technical contents: 5. Cultivation techniques: 5.1 Variety selection: Select varieties with high quality, high yield, and strong resistance. 5.2 Field management: Techniques such as cultivating strong seedlings, preparing the soil and applying fertilizer, timely transplanting, reasonable planting density, fertilizer and water management, and pest and disease control can be implemented according to local field management techniques. 5.3 Fertilizer application: Fertilizer application should comply with the provisions of NY/T 394. 5.4 Chemical pest and disease control: Chemical pest and disease control should comply with the provisions of NY/T 393. 6. Selenium-enrichment technologies: 6.1 Selenium supplementation principles: When the selenium content in the flesh roots of carrots produced naturally does not meet the requirements of GH/T 1135, selenium can be supplemented through artificial techniques. 6.2 Selenium supplementation fertilizers: Selenium fertilizers or selenium soil conditioners registered by the state should be selected. 6.3 Supplementation methods: Leaf surface supplementation and rhizosphere supplementation. One or both supplementation methods can be selected according to actual production needs. 6.3.1 Leaf surface supplementation: Prepare a selenium solution with a concentration of 70mg/kg to 120mg/kg. Supplement selenium once each during the vigorous growth period and the period of flesh root enlargement, and spray 450kg to 600kg of selenium solution evenly per hectare each time. Require that both sides of the leaves be sprayed with selenium solution until no water droplets remain. Selenium should be applied on cloudy days or after 4 PM on sun