摘要
为筛选适宜三江源区燕麦与豆科牧草混播的最佳比例,进行了燕麦、箭筈豌豆和豌豆不同混播比例试验。结果表明:在5个混播比例中,燕麦+箭筈豌豆+豌豆(7:2:1)处理的干草产量最高,达15974.53kg/hm^(2),其燕麦、箭筈豌豆和豌豆的株高、单株产量、单株地下生物量均最高,显著高于燕麦单播、燕麦+箭筈豌豆(7:3)、燕麦+豌豆(7:3)处理。燕麦、箭筈豌豆和豌豆混播处理的粗蛋白含量显著高于燕麦单播(P<0.05),其中燕麦+箭筈豌豆+豌豆(7:2:1)处理的粗蛋白含量最高,达4.93%,其中性洗涤纤维和酸性洗涤纤维含量显著低于燕麦单播、燕麦+箭筈豌豆(7:3)、燕麦+豌豆(7:3)(P<0.05)。综合评价表明,最佳混播比例为燕麦+箭筈豌豆+豌豆(7:2:1)。
In order to select the best mixed-seeding ratio of Avena sativa,Vicia sativa and Pisum sativum in Sanjiangyuan region,different mixed sowing experiments of A.sativa,V.sativa and P.sativum were carried out.The results showed that among the five mixed-seeding ratios,the hay yield of A.sativa+V.sativa+P.sativum(7:2:1)treatment was the highest,reaching 15974.53 kg/hm^(2).The plant height,yield per plant and the underground biomass per plant of A.sativa,V.sativa and P.sativum in this treatment were the highest as well,which were significantly higher than that of A.sativa unicast,A.sativa+V.sativa(7:3)and A.sativa+P.sativum(7:3).The crude protein content of the mixed-seeding A.sativa,V.sativa and P.sativum was significantly higher than that of A.sativa unicast(P<0.05),and the crude protein content of A.sativa+V.sativa+P.sativum(7:2:1)treatment was the highest,reaching 4.93%.The content of neutral detergent fiber(NDF)and acid detergent fiber(ADF)of the mixed-seeding A.sativa+V.sativa+P.sativum(7:2:1)treatment were significantly lower than that of A.sativa unicast,A.sativa+V.sativa(7:3)and A.sativa+P.sativum(7:3)(P<0.05).The comprehensive evaluation of membership function value showed that the optimal mixed-seeding ratio of A.sativa,V.sativa and P.sativum arrow was A.sativa+V.sativa+P.sativum(7:2:1).
作者
马晓东
孙金金
汪鹏斌
王琳
贺有龙
汪海波
鱼小军
MA Xiao-dong;SUN Jin-jin;WANG Peng-bin;WANG Lin;HE You-long;WANG Hai-bo;YU Xiao-jun(College of Grassland Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem,Ministry of Education/Sino-U.S.Center for Grassland Ecosystem Sustainability/Pratacultural Engineering Laboratory of Gansu Province,Lanzhou 730070,China;Grassland Station of Guoluo Prefecture,Qinghai Province,Maqin 814000,China)
出处
《中国草地学报》
CSCD
北大核心
2021年第7期21-27,共7页
Chinese Journal of Grassland
基金
国家重点研发计划“高寒草地综合利用关键技术及适应性管理研究与示范”(2016YFC0501904)。
关键词
三江源
燕麦
箭筈豌豆
豌豆
混播
评价
Sanjiangyuan region
Avena sativa
Vicia sativa
Pisum sativum
Mixed-seeding
Evaluation
