T/CDNX 026-2020 Active Group standards

T/CDNX 026-2020 Selenium-enriched cultivation technical specification for Chinese cabbage

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 026-2020

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 environment, cultivation techniques, selenium-enrichment technologies, timely harvest, and file management for the selenium-enriched cultivation of Chinese cabbage. This standard applies to the selenium-enriched cultivation of Chinese cabbage. Main technical content: 5. Cultivation techniques 5.1 Variety selection: Select varieties with high quality, high yield, and strong resistance. The seed quality shall comply with the provisions of GB 16715.2. 5.2 Field management: Techniques such as strong seedling cultivation, land preparation and fertilization, 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 shall comply with the provisions of NY/T 394. 5.4 Chemical pest and disease control: Chemical pest and disease control shall comply with the provisions of NY/T 393. 6. Selenium-enrichment technologies 6.1 Selenium supplementation principles: When the selenium content in the leaf heads of Chinese cabbage produced naturally does not meet the requirements of GB/T 1135, selenium can be supplemented through artificial techniques. 6.2 Selenium supplementation fertilizers: Selenium fertilizers or selenium soil conditioners registered by the state shall 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 when the seedling height reaches 10cm to 15cm, and spray 230kg to 300kg of selenium solution per hectare. Supplement selenium once each during the rosette stage and the hearting stage, and spray 450kg to 600kg of selenium solution per hectare evenly. Ensure