T/NAASS 110-2024 Active Group standards

T/NAASS 110-2024 Ningxia Yellow River Irrigation District Maize Integrated Irrigation and Fertilization System Layout and Management Regulations for Drip Irrigation System

Publish Date: 2024-12-12 Implement Date: 2025-01-02 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 110-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Plant cultivation

Publish Date: 2024-12-12

Implement Date: 2025-01-02

Scope

Scope: This document specifies the requirements for the layout and management of large-scale corn integrated irrigation and fertilization drip irrigation systems in the Yinghe Irrigation District of Ningxia, water quality requirements and purification methods, project design and selection and installation, and equipment maintenance and management. This document is applicable to corn production in the Yinghe Irrigation District of Ningxia. Main Technical Content: 3. Terms and Definitions: There are no terms or definitions requiring definition in this document. 4. Water Quality Conditions: - Water quality requirements: In addition to meeting the requirements of GB 5084 and GB/T50485, after the raw water is treated by the first-stage purification equipment, the sediment, weeds, fish eggs, and algae impurities entering the system pipeline do not affect the normal operation of the system. - Purification treatment: After the Yellow River water is settled in the regulating reservoir, it enters the pipeline through the first-stage pressurized filtration; groundwater directly enters the pipeline through the first-stage pressurized filtration. 5. Project Design: - Compliance with GB 50288, GB/T50363, GB/T20203, DB64/T1290, and DB64/T1292 standards. - Irrigation system: - Net irrigation quota: mnet = 0.1 × γ × z × P × (θmax - θmin)/η - Where: - mnet: Design irrigation quota, mm; - γ: Soil bulk density, g/cm3; - z: Planned soil wetting layer depth, cm, taking 40 cm before the booting stage and 60 cm after the booting stage; - P: Soil wetting ratio, 65%; - θmax: Upper limit of suitable soil moisture content (0.9 of field capacity); - θmin: Lower limit of suitable soil moisture content (0.65 of field capacity); - η: Irrigation water effective utilization coefficient, taking 0.9 according to the standard; - Irrigation cycle (T) determination: This value is the irrigation cycle during the peak irrigation peri