摘要
在青藏高原拉萨地区,通过连续两年大田试验研究了不同春箭筈豌豆(Vicia sativa)轮作系统的干物质产量、土壤肥力和经济收入。研究采用的5个轮作处理分别为休闲-冬青稞(Hordeum vulgare)-休闲(F-H-F),油菜(Brassica napus)-冬青稞-油菜(R-H-R),箭筈豌豆-冬青稞-箭筈豌豆(V-H-V),箭筈豌豆-冬青稞-油菜(V-H-R)和油菜-箭筈豌豆-油菜(R-V-R)。结果表明V-H-R和R-H-R产量最高,分别达27.24和26.89t·hm^-2。各轮作系统间总粗蛋白质产量存在显著差异(P<0.05),R-H-R系统最高,达3.68t·hm^-2。加入兰箭1号的V-H-V和V-H-R系统,其平均土壤全氮含量均高于F-H-F和R-H-R系统,分别提高了134.9%、19.6%和115.6%、9.8%,各轮作系统间土壤有机碳含量差异不显著(P>0.05)。各轮作系统经济产值,以V-H-V和V-H-R最高,分别达44284和41444CNY·hm^-2。因此,春箭筈豌豆为缓解青藏高原畜牧业饲草料短缺时的优良饲草,有巨大的应用潜力。
The dry matter yield,soil fertility,and economic output of different rotation systems of common vetch (Vicia sativa) were studied under field conditions in the Tibetan Plateau in the Lhasa region for two consecutive years.The treatments used in this study were fallow - Hordeum vulgare - fallow (F-H-F),rape (Brassica napus)- Hordeum vulgare - rape (R-H-R),common vetch - Hordeum vulgare - common vetch (V-H-V),common vetch - Hordeum vulgare - rape (V-H-R),and rape - common vetch - rape (R-V-R).The results showed that the highest yields were observed with V-H-R and R -H -R (27.24 and 26.89 t·ha^-1,respectively).There was a significant difference in total crude protein production between the rotation systems (P < 0.05),and the R-H-R system had the highest,at 3.68 t·ha^-1.The V-H-V and V-H-R systems with Lanjian No.1 had higher average soil total N content than that of the F -H -F and R -H -R systems,which increased by 134.9%,19.6%,115.6%,and 9.8%,respectively.The differences in soil organic carbon content among the rotation systems were not significant.The systems with the highest economic output values were V-H-V and V-H-R,at 44 284 and 41 444 CNY·ha^-1,respectively.Therefore,spring common vetch provides excellent forage for relieving forage shortage in livestock husbandry of the Tibetan Plateau,and has great potential.
作者
马望力
南志标
MA Wangli;NAN Zhibiao(State Key Laboratory of Grassland Agro-ecosystems / Key Laboratory of Grassland Livestock Industry Innovation,Ministry of Agriculture and Rural Affairs / College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730020,Gansu,China)
出处
《草业科学》
CAS
CSCD
2019年第6期1616-1623,共8页
Pratacultural Science
基金
国家牧草产业技术体系(CARS-34)
关键词
春箭筈豌豆
青藏高原
轮作系统
农业生产力
common vetch
Tibetan Plateau
rotation system
agricultural productivity