高寒地區(qū)混播方式及比例對(duì)牧草生產(chǎn)性能的影響
打開(kāi)文本圖片集
中圖分類號(hào)：S812 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-0435（2025）04-1172-09
Abstract：To clarify the efects of forage mixed sowing method and its proportion on the forage production per formance in alpine region，‘Qingyin No.1’ oats （Avena satiua） was mixed with‘Feed rape No.2'‘Huayouza No.62’，Common vetch and‘QinghaiNo.13’broad bean in ratio of ，5：5，7： 3 and 10：O，respectively. Forage yield and nutritional quality under diferent treatments were determined.Land equivalent ratio （LER）， relative yield（RY），relative total yield（RYT）and oat competition ratio （CR）were quantified under diferent mixed sowing methods，and the effects of mixing was evaluated by using the TOPSIS comprehensive evaluation model. The results showed that mixed sowing oats with legumes and cruciferous forages could significantly improve the dry mater yield and quality of forages compared to monoculture.LER and RYT values were greaterthan 1 under all mixed systems. The competition ratios ofoats were lessthan 1 in the oats and‘Huayouza No. 62’mixed sowing system and the oats with‘Qinghai broad bean mixed system，and were greater than 1 in the other mixed sowing systems. Comprehensive evaluation showed that oats and‘Qinghai No. broad bean at 5：5 mixed ration was the best，and followed by 7：3.
Key Words：Alpine region；Mixed method；Mixed proportion；Production performance
青藏高原是我國(guó)重要的牧區(qū)，畜牧業(yè)是省牧區(qū)經(jīng)濟(jì)發(fā)展的重要支柱產(chǎn)業(yè)和牧民增收的主要途徑[1]。（剩余12236字）