T/NAASS 091-2024 Active Group standards

T/NAASS 091-2024 Potato staple specialized variety integrated water and fertilizer technology specification

Publish Date: 2024-09-05 Implement Date: 2024-10-05 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 091-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2024-09-05

Implement Date: 2024-10-05

Scope

Scope: This document specifies the terminology definitions, pre-sowing preparation, seed sowing and mulching, integrated water and fertilizer management, and pest and disease control for potato staple food varieties in Ningxia's dry farming areas under supplementary irrigation conditions. This document is applicable to the integrated water and fertilizer production of potato staple food varieties in Ningxia's dry farming areas under supplementary irrigation conditions. Main technical content: 3. Terminology and definitions: The following terms and definitions are applicable to this document. - Potato staple food varieties: Refers to varieties suitable for processing potato starch, French fries, and potato chips, etc. as staple foods. - Integrated water and fertilizer: Refers to the use of a pressure system to dissolve soluble solid fertilizers or liquid fertilizers in water, and meeting the water and nutrient needs of crops in a timely and appropriate manner according to the path of "water carrying fertilizer, fertilizer promoting water, and water-fertilizer coupling". - Irrigation system: An irrigation system using a primary control system and irrigation pipe equipment, combined with integrated water and fertilizer irrigation technology, to improve the utilization coefficient of irrigation water and fertilizer. 4. Pre-sowing preparation 4.1 Site selection and land preparation: Select plots with supplementary irrigation conditions, gentle terrain, loose soil texture, and deep soil layers; deep plowing in autumn, and rotary tillage and harrowing before sowing to ensure level and fine soil. 4.2 Base fertilizer application: Combine with land preparation, apply 2000–3000 kg of fully composted farmyard manure, 15–25 kg of urea, 30–50 kg of diammonium phosphate, and 15–25 kg of potassium sulfate per 667 m2. Fertilizers shall comply with GB/T 25246, NY/T 1868, and NY/T 2911. 4.3 Variety selection: Select varieties with 20% dry matter, 0.3% reducing sugar content, slow b