甘南高寒牧区加拿大饲用燕麦与豌豆的混播效果研究  

Study on the Mixed Effect of Canadian Forage Oats and Peas in Gannan Alpine Pasture Area

作　　者：杨鹏年 杜文华[1] 田新会[1] YANG Peng-nian;DU Wen-hua;TIAN Xin-hui(College of Pratacultural Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem,Ministry of Education/Pratacultural Engineering Laboratory of Gansu Province/Sino-U.S.Centers for Grazingland Ecosystem Sustainability,Lanzhou 730070,China)

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续研究中心,甘肃兰州730070

出　　处：《中国草地学报》2022年第3期39-48,共10页Chinese Journal of Grassland

基　　金：西藏饲草产业专项(XZ201801NA02,XZ201901NA03);国家重点研发计划(2018YFD0502402-3);甘肃省草地畜牧业可持续发展创新团队项目(2017C-11);现代农业产业技术体系建设专项资金(CARS-40-09B)共同资助。

摘　　要：对加拿大饲用燕麦与青海箭筈豌豆、加拿大饲用豌豆不同比例(100∶0、80∶20、70∶30、60∶40、50∶50、40∶60、30∶70、20∶80、0∶100)混播草地的生产性能和营养价值进行研究,探讨燕麦与豌豆的最佳混播组分和混播比例,以期为甘南高寒牧区燕麦与豌豆混播草地的建植提供参考。结果表明,混播组分间,燕麦与青海箭筈豌豆混播(A1组分)的平均株高较高,燕麦平均枝条数较高,平均营养价值较好。混播比例间,随着豌豆比例的增加,燕麦平均枝条数逐渐降低,豌豆平均枝条数逐渐增加,平均干草产量总体呈缓慢降低的趋势,平均粗蛋白含量逐渐升高,平均中性洗涤纤维和酸性洗涤纤维含量逐渐降低;燕麦和豌豆的混播比例为80∶20(B2)时,平均鲜草和干草产量最高,平均枝条数较多,平均粗蛋白、中性洗涤纤维和酸性洗涤纤维含量较高。在混播组分和混播比例交互作用下,加拿大饲用燕麦和青海箭筈豌豆以50∶50(A1B5)比例混播时干草产量较高(15.82×10^(3)kg/hm^(2)),粗蛋白含量为15.61%,中性洗涤纤维含量为47.71%,酸性洗涤纤维含量为30.81%,粗脂肪含量为2.45%,综合评价值最高(0.7216)。In order to explore the mixed sowing effect of oats and peas,this experiment studied the production performance and nutritional value of the mixed sowing ratio(100∶0,80∶20,70∶30,60∶40,50∶50,40∶60,30∶70,20∶80,0∶100)of Canadian forage oat and two pea varieties(Qinghai common vetch,Canadian forage pea).The results showed that among the mixed components,the average plant height,the number of oat and average nutritional value of Qinghai common vetch and oats(A1 group)were higher.For different mixed sowing ratio,as the peas mixed sowing ratio increases,the average number of branches of oats decreased gradually,the average number of branches of peas increased gradually,and the average hay yield decreased slowly,the average CP content increased gradually,and the average NDF and ADF content decreased gradually.When the mixed sowing ratio of oats and peas was 80∶20(B2),the average fresh and hay yield was the highest,the average number of branches was more,and the average content of CP,NDF and ADF were higher;The interaction between mixed sowing components and mixed sowing ratio showed that the hay yield was relatively higher(15.82×10^(3)kg/hm^(2))when Qinghai common vetch and Canadian forage oat were mixed at the ratio of 50∶50(A1B5),the contents of CP,NDF,ADF and ether extract(EE)contents were 15.61%,47.71%,30.81%and 2.45%,respectively,and the comprehensive evaluation value was the highest(0.7216).

关 键 词：甘南高寒牧区 加拿大饲用燕麦 豌豆 混播 

分 类 号：S54[农业科学—作物学]