T/GZAAV 003-2020 Active

Scope: This document specifies the terms and definitions, raw material preparation, facility preparation, and key techniques for silage production of Lophatherum japonicum and feed oats in mixed silage. This document is applicable to the processing of mixed silage of Lophatherum japonicum and feed oats. Main technical content: 4. Raw material preparation 4.1 Mowing period: Mow feed oats and Lophatherum japonicum simultaneously when the feed oats are in the heading stage. 4.2 Stubble height: Leave a stubble of 3 cm to 5 cm. 4.3 Wilted harvesting: After wilting, spread and air-dry the wilted Lophatherum japonicum and feed oats in the field to reduce the moisture content to 60% to 70%. 5. Facility preparation 5.1 Silage pits: Follow the provisions of NY/T 2698. 5.2 Surface stacking: Follow the provisions of NY/T 2697. 5.3 Bag storage: Follow the provisions of DB37/T 3924.1. 5.4 Wrapped silage: Follow the provisions of DB37/T 3925.2. 6. Silage production techniques 6.1 Shredding: Use a chopper or twister to shred the material into pieces 3 cm to 5 cm in length. 6.2 Mixing ratio: Mix the wilted Lophatherum japonicum and feed oats in a ratio of 1:3 to 1:5 and mix well. 6.3 Additives: Use silage additives in accordance with the relevant provisions of Announcement No. 318 of the Ministry of Agriculture of the People's Republic of China. 6.4 Filling and compacting: Follow the provisions of NY/T 2698, NY/T 2697, DB37/T 3924.1, and DB37/T 3925.2 for silage pits and surface stacking. 6.5 Sealing: Follow the provisions of NY/T 2698, NY/T 2697, DB37/T 3924.1, and DB15/T 456 for silage pits and surface stacking. 6.6 Post-storage management: For silage pits and surface stacking, pay attention to drainage and rodent prevention. Repair any damaged sealing membranes promptly to avoid air and rainwater causing further damage. For bagged silage, avoid exposure to rain and sunlight and store it indoors or in a covered outdoor area. 7. Retrieval and q