T/NAASS 019-2022 Active Group standards

T/NAASS 019-2022 Ningxia scale dairy farm stretch film wrapded alfalfa semi-dry silage technical specification

Publish Date: 2022-11-12 Implement Date: 2022-12-16 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 20.00

Out of stock

Basic Information

Standard Code: T/NAASS 019-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: \nFeeds

Publish Date: 2022-11-12

Implement Date: 2022-12-16

Scope

Scope: This document specifies the terms and definitions, harvesting techniques, manufacturing techniques, machinery and equipment, quality control, and testing methods for stretch-wrapping and silage of alfalfa in large-scale dairy farms in Ningxia. This document applies to the production of semi-dry silage of alfalfa wrapped in stretch film in large-scale dairy farms and forage production and processing enterprises in Ningxia. Main technical content: 3. Terminology and definitions The following terms and definitions apply to this document. 3.1 Semi-dry silage Haylage is a forage product obtained by reducing the water content of forage to 45%–55% and storing the raw material under airtight and anaerobic conditions to inhibit the growth of harmful microorganisms. [Source: T/CAAA 003-2018] 3.2 Stretch-wrapping film A specialized film for wrapping hay bales, featuring high tensile strength, adhesion, suction capacity, puncture resistance, tear resistance, anti-aging properties, excellent airtightness, and light-blocking capability. 4. Harvesting techniques 4.1 Harvesting timing During the appropriate harvesting period, check the weather forecast and ensure no rainfall within 48 hours before starting mowing. 4.2 Mowing 4.2.1 Mowing frequency Alfalfa can be mowed once to twice in the first year of planting, and two to four times after the second year. 4.2.2 Mowing period Mow during the budding to early flowering stage, and the last mowing should be completed before September 25 (40–45 days before the first frost). 4.2.3 Stubble height Stubble height should be 8–12 cm. 4.2.4 Harvesting using a mower with flattening function to ensure effective flattening of alfalfa stems. 4.2.5 Drying Use specialized drying machines to spread and dry the alfalfa after mowing. 4.2.6 Baling When the alfalfa is dried to 45%–55% moisture, proceed with baling operations, ensuring the width of the hay bales is suitable for subsequent picking. 5. Manu