T/NAASS 064-2023 Active Group standards

T/NAASS 064-2023 The Nitrogen and Phosphorus Leaching Prevention and Control Regulations for Outdoor Spinach in the Yellow River Irrigation District in Ningxia

Publish Date: 2023-10-31 Implement Date: 2023-12-10 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/NAASS 064-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Plant cultivation

Publish Date: 2023-10-31

Implement Date: 2023-12-10

Scope

Scope: This regulation stipulates the relevant terms, definitions, and key techniques for preventing and controlling nitrogen and phosphorus leaching in open-field spinach in the Yinghe Irrigation District of Ningxia, as well as other management measures. This regulation applies to the prevention and control of nitrogen and phosphorus leaching in soil of open-field spinach in the Yinghe Irrigation District of Ningxia; Main technical content: 3. Terms and definitions: The following terms and definitions apply to this document. Nitrogen and phosphorus leaching in spinach fields refers to the process in which nitrogen and phosphorus in soil are leached out of the corn root zone through irrigation and precipitation. 3.1 Source control technology: Based on the total nutrient demand determined by the target yield of three seasons (crops) of spinach, this technology controls fertilizer input and effectively controls nitrogen and phosphorus leaching in soil from the first season (early spring crop) onwards. 3.3 Process blocking technology: During the three seasons of spinach growth, this technology effectively blocks nitrogen and phosphorus leaching in soil through water-saving irrigation control and reduced nitrogen fertilizer application. 3.4 End-stage treatment technology: After the harvest of the third season (autumn crop), this technology effectively blocks nitrogen and phosphorus leaching in soil through measures such as mechanical deep tillage and controlled winter irrigation. 4. Prevention and control techniques for nitrogen and phosphorus leaching in spinach: The peak periods of nitrogen and phosphorus leaching in spinach fields are after the first irrigation after basal fertilization and after the second irrigation after top-dressing fertilizer. By controlling irrigation and fertilizer application amounts, improving water and fertilizer utilization efficiency, and reducing nitrogen and phosphorus leaching, the specific target yields, fertilizer and