T/NAASS 118-2024 Active Group standards

T/NAASS 118-2024 Spring wheat even seeding cultivation techniques in the Yellow River irrigation district in Ningxia

Publish Date: 2024-12-12 Implement Date: 2025-01-03 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 118-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Plant cultivation

Publish Date: 2024-12-12

Implement Date: 2025-01-03

Scope

Scope: This document specifies the terms and definitions, pre-sowing preparation, sowing and fertilization, irrigation, pest and disease control, and harvesting requirements in the precision cultivation of spring wheat. This document is applicable to spring wheat production areas in the Yinghe Irrigation District of Ningxia. Main technical content: 3. Terms and definitions The following terms and definitions apply to this document: - Uniform sowing: A sowing technique using specialized sowing machinery to distribute seeds evenly across the field surface and with consistent soil coverage depth. 4. Pre-sowing preparation - Land preparation: Select fields with level surfaces and good irrigation and drainage conditions for planting, ensuring soil environmental quality meets the requirements of GB 15618. - Plowing with a plow-type grid plow, with a plowing depth ≥25cm. - Laser leveling of the field after plowing, meeting the quality requirements of DG/T 151. - Winter irrigation in mid-November. - When the average daily temperature exceeds 0°C in spring, conduct 1–2 times of mulching to retain moisture. - Use seeds of approved varieties that meet the quality requirements of GB 4404.1. - Use insecticidal or sterilizing seed coatings for seed treatment, with pesticide quality meeting the requirements of GB/T 8321 - Select wheat precision sowing machines that meet the quality requirements of DG64/Z 004. - For overly moist soil, conduct shallow plowing and loosening the soil in mid-to-late February. 5. Sowing and fertilization - Sow when the temperature is ≥0°C and the soil has thawed 5–8cm, with a sowing depth of 2.5–3.5cm and a sowing rate of 20.0–22.5kg/667m2. - Base fertilization: Apply 8.7–12.8kg of nitrogen, 4.6–9.2kg of phosphorus pentoxide, and 1.8–3.6kg of potassium oxide per 666.7m2, meeting the quality requirements of NY/T 496. - Top dressing: Apply 10–15kg of urea per 666.7m2 during the wheat's one-leaf-one-heart stage for