T/NAASS 075-2023 Ningxia Yellow River Irrigation District Spring Wheat Double-cropping Oats Grass Cultivation Technical Regulations

Scope

Scope: This standard specifies the technical terms and definitions, site environment, land preparation, sowing, field management, harvesting, and pest and disease prevention for the cultivation of spring wheat and oat grass in the Yinshui irrigation area of Ningxia. This standard applies to the Yinshui irrigation area of Ningxia; Main technical content: 3 Terms and definitions. The following terms and definitions are applicable to this document. - **Multiple-cropping broccoli after spring wheat harvested**: Refers to a multi-cropping model after spring wheat harvest, which aims to improve the utilization efficiency of agricultural resources such as light, heat, and land, increase economic benefits, and facilitate the integration of farmland cultivation and breeding, based on regional agricultural production needs and regional agricultural resource characteristics. 4 Site environment. Soil selection: Light loam or sandy loam with fertile soil, deep and loose cultivation layers, and convenient irrigation and drainage. The environmental conditions should meet the requirements of the *Soil Environmental Quality Standards* (GB 15618-2008). 5 Spring wheat cultivation. 5.1 Variety selection: Select suitable varieties for planting in the Yinshui irrigation area and harvest before July 15. The seed quality should comply with the *National Standards for Cereal Seeds* (GB 4404.1-2008). 5.2 Cultivation techniques: Follow the *High-Yield Cultivation Techniques for Spring Wheat in the Yinshui Irrigation Area* (DB64/T 1060-2015). 6 Oat re-cropping. 6.1 Sowing. 6.1.1 Variety selection: Select high-quality, high-yielding oat varieties suitable for spring wheat re-cropping with a growth period of 90–100 days. The seed quality should comply with the *National Standards for Cereal Seeds* (GB 4404.1-2008) and the *Grade Classification of Herb Seeds of the Gramineae* (GB 6142-2008). 6.1.2 Seed treatment: Before sowing, spread and dry the seeds for 1–2 days and mix with

Development Information

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