生态科学2025，Vol.44Issue(2)：13-19,7.DOI:10.14108/j.cnki.1008-8873.2025.02.002
湘西两熟制地区冬种多花黑麦草引种研究
Study on the introduction of winter ryegrass in the double-cropping region of west Hunan
摘要
Abstract
To enhance the utilization efficiency of winter fallow paddy fields and establish a winter ryegrass production system in double-cropping region,this study systematically compared seven Lolium multiflorum L.cultivars(Thunderbird,Bigboss,Tetragold,Abundat,Kuanye,Changjiang No.2 and Chuannong No.1)introduced from domestic and international sources.The evaluation focused on agronomic performance and soil physicochemical properties to identify optimal cultivars for double-cropping region in west Hunan.Our findings showed that the fresh weight yield and dry weight yield of Thunderbird peaked to 75800 kg·ha-1 and 11130 kg·ha-1,respectively,which were significantly higher than those of the other 6 cultivars(P<0.05).The total quantity of quality of crude protein,crude fiber,calcium and phosphorus of Thunderbird were significantly higher than those of the other 6 cultivars(P<0.05),which were 1660.90 kg·ha-1,1728.56 kg·ha-1,43.59 kg·ha-1 and 30.56 kg·ha-1,respectively.Winter ryegrass could alleviate soil acidification,and exert positive effects on soil total N,available N and total K.The total N,available N and total K of soil planting Thunderbird ryegrass were significantly higher than those of other cultivars(P<0.05).The fuzzy membership function analysis was used to comprehensively evaluate the yield and quality of different ryegrass cultivars and their effects on soil physicochemical properties.The results showed that the Thunderbird had the highest comprehensive evaluation of yield and quality and the best comprehensive effects on soil physicochemical properties.In conclusion,Thunderbird is the first choice of winter ryegrass cultivars in double-cropping region of west Hunan.It has the best production performance and is suitable for popularization and application in this area.关键词
多花黑麦草/生产性能/饲草品质/土壤理化性质Key words
Italian ryegrass/production performance/forage quality/soil physicochemical properties分类
农业科技引用本文复制引用
曹孟岩,项瑶,何宏斌,张楚婷,何春桃,辛国荣..湘西两熟制地区冬种多花黑麦草引种研究[J].生态科学,2025,44(2):13-19,7.基金项目
国家自然科学基金(32171683) （32171683）
公益性行业(农业)科研专项经费项目(201503122) （农业）
广东省自然科学基金(2020A1515010494) （2020A1515010494）
"扬帆计划"引进创新创业团队专项(2015YT02H032) （2015YT02H032）
