兰州大学机构库 >草地农业科技学院
Forage production and soil water balance in oat and common vetch sole crops and intercrops cultivated in the summer-autumn fallow season on the Chinese Loess Plateau
Wang, ZK(王自奎)1,2; Jiang, Hailiang1,2; Shen, YY(沈禹颖)1,2
2020-04
Source PublicationEUROPEAN JOURNAL OF AGRONOMY
ISSN1161-0301
Volume115
AbstractIntegrating forage crops into traditional wheat and maize cropping systems is a potential alternative for increasing fodder supply while maintaining sustainable grain production on the Loess Plateau of China. This study was conducted to evaluate the biomass and crude protein production as well as the soil water balance and water use efficiency of oat (Avena sativa L.) and common vetch (Vicia sativa L.) intercrops compared to sole crops. Field experiments were conducted during the fallow season after wheat harvesting (mid-July to late October) in 2011 and 2012. Five cropping patterns were tested: sole oat (SO), sole common vetch (SV), and three intercrops of oat to common vetch in rows of two to one (I21), one to one (I11), and one to two (I12). Rainfall in the middle and late growing season in 2011 was abundant, but the early season was very dry. Rainfall in 2012 was less than average but distributed similarly with the long-term pattern. When harvested in late September, I21 showed the greatest aerial biomass and crude protein yield of 3.20 and 0.36 t ha(-1), respectively, in 2011, and SO showed the greatest biomass and crude protein yield of 5.70 and 0.51 t ha(-1), respectively, in 2012. When harvested one month later, the crude protein content of common vetch maintained a large value, while that in oat was reduced by 21 %-29 %. I21 still showed the greatest biomass and crude protein yield in 2011, and in 2012, SO had the highest biomass yield of 7.74 t ha(-1) while SV showed the highest crude protein production of 0.65 t ha(-1). The land equivalent ratio was above unity in all intercropping systems in 2011 and below unity in all systems in 2012. The soil water in the 0-120 cm layer in all treatments was fully recharged in 2011, but depleted in 2012, and the depletions in SV and I12 were significantly less than that of the other treatments (P < 0.05) on both harvesting dates. In 2011, water use efficiencies based on biomass and crude protein on both harvesting dates were all greatest in I21, water use efficiencies at the early and late harvestings were greatest in SO and I12, respectively. Therefore, the intercrops with a greater oat proportion had the advantage of maintaining system production when early season water availability was unfavorable, while those with a greater common vetch proportion had the potential of improving forage quality and conserving soil water to maintain the production of the main crop under normal water conditions. Selection of a proper planting pattern should take initial soil water conditions and rainfall availability into consideration.
KeywordForage crop Fallow crop Intercropping Crude protein content Water use efficiency
DOI10.1016/j.eja.2020.126042
Indexed BySCIE
Language英语
Funding ProjectNational Natural Science Foundation of China[31872416][31871560][51609112] ; China Forage and Grass Research System[CARS-34] ; Fundamental Research Funds for the Central Universities[lzujbky-2019-kb33]
WOS Research AreaAgriculture
WOS SubjectAgronomy
WOS IDWOS:000528197200024
PublisherELSEVIER
Original Document TypeArticle
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/368839
Collection草地农业科技学院
Corresponding AuthorShen, Yuying
Affiliation1.Lanzhou Univ, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Peoples R China
2.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730020, Peoples R China
First Author AffilicationCollege of Pastoral Agriculture Science and Technology
Corresponding Author AffilicationCollege of Pastoral Agriculture Science and Technology
Recommended Citation
GB/T 7714
Wang, Zikui,Jiang, Hailiang,Shen, Yuying. Forage production and soil water balance in oat and common vetch sole crops and intercrops cultivated in the summer-autumn fallow season on the Chinese Loess Plateau[J]. EUROPEAN JOURNAL OF AGRONOMY,2020,115.
APA Wang, Zikui,Jiang, Hailiang,&Shen, Yuying.(2020).Forage production and soil water balance in oat and common vetch sole crops and intercrops cultivated in the summer-autumn fallow season on the Chinese Loess Plateau.EUROPEAN JOURNAL OF AGRONOMY,115.
MLA Wang, Zikui,et al."Forage production and soil water balance in oat and common vetch sole crops and intercrops cultivated in the summer-autumn fallow season on the Chinese Loess Plateau".EUROPEAN JOURNAL OF AGRONOMY 115(2020).
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