Liaoning Provincial Standard of the People's Republic of China
Latest
DB21/T 1769-2024
Replace
DB21/T 1769-2009
Scope
This document specifies the technical requirements for orchard construction, shaping and pruning, flower and fruit management, soil, fertilizer and water management, pest and disease control, natural disaster prevention, and fruit harvesting in cold-region apple production. This document applies to cold-region apple production. Note: In this document, "cold regions" refer to apple producing areas with an average temperature of -12 ℃ to -10 ℃ in January and an extreme low temperature below -20 ℃.
DB21/T 1769-2024 Referenced Document
DB21/T 1318.2 Technical regulations for green prevention and control of major fruit tree diseases and insect pests Part 2: Apple
DB21/T 2806 Hanfu apple dwarfing middle stock and large seedling construction technical regulations
DB21/T 3192 Technical Regulations for Growing Grass Between Rows in Apple Orchard
GB 15618 Soil environment quality risk control standard for soilcontamination of agriculture land
GB 3095 Ambient air quality standards*, 2026-02-27 Update