T/YNFS 009-2023 Active Group standards

T/YNFS 009-2023 "Technical regulations for estimating hazelnut production"

Publish Date: 2024-02-08 Implement Date: 2024-03-08 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/YNFS 009-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2024-02-08

Implement Date: 2024-03-08

Scope

Scope: This document specifies the technical requirements for walnut yield measurement, including terminology and definitions, preparation for yield measurement, content and timing of yield measurement, sampling, productive yield measurement, experimental demonstration and measurement of four-side trees (ancient trees), and yield measurement reports. This document is applicable to walnut yield measurement. Main technical content: 1. Scope 2. Normative reference documents 3. Terminology and definitions 3.1 Productive yield measurement 3.2 Experimental demonstration yield measurement 3.3 Five-point sampling method 3.4 Coverage coefficient 3.5 Fresh green fruit coefficient 3.6 Dry and fresh fruit coefficient 4. Preparation for yield measurement 4.1 Yield measurement tools 4.2 Site information 4.3 Composition of yield measurement experts 5. Basic situation investigation and yield measurement timing 5.1 Basic situation investigation 5.2 Yield measurement timing 5.2.1 Pre-harvest yield measurement 5.2.2 Actual yield measurement 6. Sampling 6.1 Sampling sites 6.1.1 Productive yield measurement 6.1.2 Experimental demonstration yield measurement 6.2 Sample trees 6.2.1 In the identified yield measurement sites, 5 sample trees are selected using the "five-point method" and marked, with no edge trees selected. 6.2.2 In the towns involved in the survey, the four-side trees and ancient trees are randomly selected as 5 yield measurement sample trees. 7. Yield measurement 7.1 Productive yield measurement 7.1.1 Calculation of the number of trees per unit area 7.1.2 Calculation of the average number of green fruits per tree 7.1.3 Calculation of the average weight of a single green fruit 7.1.4 Calculation of the average yield of green fruits per tree 7.1.5 Calculation of the green fruit yield per unit area 7.1.6 Calculation of the dry fruit yield per unit area 7.2 Experimental demonstration yield measurement 7.2