T/CDNX 025-2020 Active Group standards

T/CDNX 025-2020 Seamicrogreens cultivation technical specifications

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 025-2020

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 techniques, timely harvesting, and file management for the selenium-enriched cultivation of watercress. This standard applies to the selenium-enriched cultivation of watercress. 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 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 techniques 6.1 Selenium supplementation principles: When the selenium content of watercress produced naturally does not meet the requirements of GH/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 Selenium supplementation methods: Leaf surface selenium supplementation and rhizosphere selenium supplementation. One or both supplementation methods can be selected according to actual production needs. 6.3.1 Leaf surface selenium supplementation: Prepare a selenium solution with a concentration of 70mg/kg to 120mg/kg. Supplement selenium once each in the early growth stage and the growth peak period, with 450kg to 600kg of selenium solution evenly sprayed per hectare per time. Require that the selenium solution be sprayed on both sides of the leaves, leaf sheaths, and leaf stems until it does not drip. The selenium solution should be applied on cloudy days or after 4 PM on s