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Sökning: id:"swepub:oai:slubar.slu.se:86430" > Intercropping affec...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004705naa a2200409 4500
001oai:slubar.slu.se:86430
003SwePub
008240410s2017 | |||||||||||000 ||eng|
0247 a https://res.slu.se/id/publ/864302 URI
0247 a https://doi.org/10.1016/j.apsoil.2017.06.0402 DOI
040 a (SwePub)slu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Zhao, Enid Mingu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology4 aut0 (Swepub:slu)47938
2451 0a Intercropping affects genetic potential for inorganic nitrogen cycling by root-associated microorganisms in Medicago sativa and Dactylis glomerata
264 1b Elsevier BV,c 2017
264 1b Elsevier,c 2024
520 a The effect of intercropping on the genetic potential for N-cycle pathways promoting either retention or loss of N by the microbial communities associated to the roots or present in the bulk soil for two forage crops was studied in a greenhouse experiment. Medicago sativa ('lucerne') and Dactylis glomerata ('cocksfoot') were grown as sole crops or intercropped in soils with or without addition of biogas digestate to also evaluate fertilizer effects. Eight genes involved in inorganic N-cycling were quantified using real-time PCR to determine the genetic potential for different N-cycling pathways. Both plant species and intercropping affected the abundance of root-associated microbial-derived genes involved in N-cycling processes, while there was no effect of amendment with biogas digestate. The genetic potential for the various pathways differed between bulk soil and roots, as well as between the roots of the two plant species, suggesting that organisms involved in different N-cycling processes were favored in different compartments in the soil-root environment. Ammonia oxidizers involved in nitrification, a pathway resulting in N-leaching, dominated in soil whereas those related to N-2 fixation and gaseous N losses (denitrification) were more abundant on roots. We also observed niche differentiation between the two major groups of organisms with the capacity to reduce N2O in the root- and soil compartment. Legume-grass intercropping resulted in a decreasing trend for several root- associated functional communities. More specifically, the legume exerted an effect on the N-cycling communities on the roots of both the legume and grass species, which suggests altered plant-microbial or microbial-microbial interactions during intercropping.
650 7a NATURVETENSKAPx Biologix Ekologi0 (SwePub)106112 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Ecology0 (SwePub)106112 hsv//eng
650 7a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Jordbruksvetenskap0 (SwePub)401012 hsv//swe
650 7a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Agricultural Science0 (SwePub)401012 hsv//eng
650 7a NATURVETENSKAPx Biologix Mikrobiologi0 (SwePub)106062 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Microbiology0 (SwePub)106062 hsv//eng
7001 a Jones, Christopheru Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology4 aut0 (Swepub:slu)48349
7001 a Meijer, Johanu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology4 aut0 (Swepub:slu)49506
7001 a Lundquist, Per-Olofu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtbiologi,Department of Plant Biology4 aut0 (Swepub:slu)47374
7001 a Fransson, Petrau Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig mykologi och patologi,Department of Forest Mycology and Pathology4 aut0 (Swepub:slu)48554
7001 a Carlsson, Georgu Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Biosystem och teknologi,Department of Biosystems and Technology4 aut0 (Swepub:slu)48872
7001 a Hallin, Sarau Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Department of Forest Mycology and Plant Pathology4 aut0 (Swepub:slu)48245
7102 a Sveriges lantbruksuniversitetb Institutionen för växtbiologi4 org
7102 a Sveriges lantbruksuniversitet
7730 t Applied Soil Ecologyd : Elsevier BVg 119, s. 260-266q 119<260-266x 0929-1393x 1873-0272
8564 8u https://res.slu.se/id/publ/86430
8564 8u https://doi.org/10.1016/j.apsoil.2017.06.040

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