T/CDNX 029-2020 Active Group standards

T/CDNX 029-2020 Cultivation Techniques of Selenium-enriched Broccoli

T/CDNX 029-2020

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 029-2020

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, site environment, cultivation techniques, selenium-enrichment techniques, timely harvesting, and file management for the cultivation of selenium-enriched broccoli. This standard applies to the cultivation of selenium-enriched broccoli. Main technical content: 5. Cultivation techniques 5.1 Variety selection: Select varieties with high quality, high yield, and strong resistance, and the seed quality shall comply with the provisions of GB 16715.4. 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 shall be implemented in accordance with the provisions of GB/Z 26586 or may refer 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 control shall comply with the provisions of NY/T 393. 6. Selenium-enrichment techniques 6.1 Selenium supplementation principles: When the selenium content in the broccoli heads of naturally selenium-enriched production does not meet the requirements of GB/T 1135, selenium can be supplemented through artificial techniques. 6.2 Selenium 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 seedlings reach a height of 10cm to 15cm, and spray 230kg to 300kg of selenium solution per hectare. Supplement selenium once each during the flowering period and the period of broccoli head enlargement, spraying 450k