冬季补播速生型冷季牧草对杂交狼尾草新品系翌年春季产量和品质的影响  

Effects of Overseeding Fast-growing Cold-Season Forage in Winter on Yield and Quality of the New Strains of Hybrid Pennisetum in Next Spring

作　　者：韩卡文 石秀兰[1] 韦立台 杨磊 张群珧 韩瑞宏[1] HAN Kawen;SHI Xiulan;WEI Litai;YANG Lei;ZHANG Qunyao;HAN Ruihong(College of Horticulture and Landscape Architecture,Zhongkai University ofAgriculture and Engineering,Guangzhou 510225,China)

机构地区：[1]仲恺农业工程学院园艺园林学院

出　　处：《广东农业科学》2019年第6期118-124,共7页Guangdong Agricultural Sciences

基　　金：广东省科技计划项目(2015A020209187,2016A020207003);广州市科技计划项目(201607010099);广东省土地复垦植被恢复工程技术研究中心建设项目(粤科函政字〔2013〕1589号)

摘　　要：【目的】探索广东地区杂交狼尾草草地冬播速生型冷季牧草对杂交狼尾草翌年春季产量和品质的影响。【方法】在刈后冬季休眠的杂交狼尾草行间,补播速生型冷季牧草光叶紫花苕(Vicia villosa)、箭筈豌豆(V.sativa)和多花黑麦草(Lolium perenne),以不补播为对照,在翌年春季刈割时测定杂交狼尾草的产量及营养品质。【结果】补播后翌年春季杂交狼尾草产草量和品质均有提高,11月补播光叶紫花苕、箭筈豌豆、多花黑麦草和12月补播多花黑麦草的杂交狼尾草产草量依次为11.85、8.85、8.83、7.54 t/hm2(DM),比不补播对照分别提高65.5%、23.6%、23.3%和5.3%;杂交狼尾草粗蛋白质含量以补播光叶紫花苕处理最高。【结论】补播光叶紫花苕对杂交狼尾草生产性能的综合影响效果最好,其次是11月补播多花黑麦草、箭筈豌豆,12月补播多花黑麦草效果欠佳,综合效果低于不补播对照。【Objective】The study was carried out to explore the effects of overseeding fast-growing cold-season forage grass in winter on the yield and quality of hybrid Pennisetum in the next spring in Guangdong hybrid Pennisetum grassland.【Method】In the row of hybrid Pennisetum that is dormant after winter castration,the fast-growing cold-season forage grass Vicia villosa,V.sativa,and Lolium perenne were reseeded in the rows of hybrid pennisetum during the winter dormancy after mowing,with non-overseeding group as control,and the yield and nutritional quality of hybrid Pennisetum were determined during spring cutting in the spring of the next year.【Result】The results showed the yield and quality of hybrid Pennisetum was improved in the next spring after overseeding.The yield of hybrid pennisetum after the reseeding of V.villosa,V.sativa,and L.perenne in November and reseeding of Lolium perenne in December was 11.85,8.85,8.83 and 7.54 t/hm2(DM),respectively,an increase of 65.5%,23.6%,23.3%and 5.3%over those of the non-overseeding control group,respectively.The group with the reseeding of V.villosa has the highest crude protein content of hybrid Pennisetum.【Conclusion】The comprehensive effect of the reseeded V.villosa on the production performance of hybrid Pennisetum was the best,followed by the L.perenne and L.perenne reseeded in November.The comprehensive effect of L.perenne was poor,which was lower than that of non-overseeding treatment.

关 键 词：杂交狼尾草 冷季牧草 补播 生产性能 隶属函数评价 

分 类 号：S544[农业科学—作物学]