T/CDNX 008-2020 Seeds of pumpkin cultivation technical specification
T/CDNX 008-2020 Seeds of pumpkin cultivation technical specification
Basic Information
Scope
Scope: This standard specifies the terminology and definitions, production environment, cultivation techniques, selenium-enrichment technologies, timely harvesting, and file management for the cultivation of selenium-enriched pumpkins. This standard applies to the cultivation of selenium-enriched pumpkins. Main technical content: 4. Production environment: The base should be selected in areas with selenium-rich soil, and the production environment should comply with the provisions of NY/T 391. 5. Cultivation techniques: 5.1 Variety selection: Select varieties with high quality, high yield, and strong resistance, and the seed quality should comply with the provisions of GB 16715.1. 5.2 Field management: Techniques such as seedling cultivation, land preparation and fertilization, timely transplanting, rational 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 control should comply with the provisions of NY/T 393. 6. Selenium-enrichment technologies: 6.1 Selenium supplementation principles: When the selenium content in pumpkin fruits from naturally selenium-rich production 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 should be selected. 6.3 Supplementation methods: Leaf surface supplementation and rhizosphere supplementation. One or both 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 at the budding stage, flowering stage, and young fruit stage, with 450kg to 650kg of selenium solution evenly spr