dc.creatorHerrera, J. M.
dc.creatorBüchi, L.
dc.creatorRubio, Gerardo
dc.creatorTorres Guerrero, C.
dc.creatorWendling, M.
dc.creatorStamp, P.
dc.creatorPellet, D.
dc.date.accessioned2018-06-14T19:12:38Z
dc.date.accessioned2018-11-06T12:26:27Z
dc.date.available2018-06-14T19:12:38Z
dc.date.available2018-11-06T12:26:27Z
dc.date.created2018-06-14T19:12:38Z
dc.date.issued2017-03
dc.identifierHerrera, J. M.; Büchi, L.; Rubio, Gerardo; Torres Guerrero, C.; Wendling, M.; et al.; Root decomposition at high and low N supply throughout a crop rotation; Elsevier Science; European Journal of Agronomy; 84; 3-2017; 105-112
dc.identifier1161-0301
dc.identifierhttp://hdl.handle.net/11336/48696
dc.identifier1873-7331
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1866638
dc.description.abstractSoil nitrogen (N) dynamics can be modified by cover crops in rotations with cereals. Although, roots are a major source of N, little is known about the dynamics of root decomposition of cash and cover crops. The objective of this study was to assess the effects that cover crop species have on i) the decomposition of spring wheat roots during the growth of cover crops, and ii) the decomposition of cover crop roots during the growing season of spring wheat. The experiment aimed also at comparing three non-winter hardy cover crops of varying shoot C/N ratios under low and high N input levels of 6 and 12 g N m−2 y−1, respectively. The experiment included spring wheat (Triticum aestivum L.) as the main crop and nonwinter hardy cover crops (yellow mustard (Sinapis alba L.), phacelia (Phacelia tanacetifolia Benth), and sunflower (Helianthus annuus L.) as well as bare soil fallow treatment. Minirhizotrons were used to nondestructively assess the spatial and temporal patterns of root growth and decomposition from 0.10 to 1.00 m. Simultaneously, we grew all crops in soil columns to measure destructively C and N contentin the roots. We concluded that wheat root decomposition was not affected by cover crop species. In contrast, during the growing season of wheat root decomposition of yellow mustard was on average twice as high for phacelia and sunflower as a consequence of a higher production of roots with a significantly higher C/N ratio compared to the other cover crops.
dc.languageeng
dc.publisherElsevier Science
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1161030116302568
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.eja.2016.12.012
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCover crops
dc.subjectWheat
dc.subjectNitrogen uptake
dc.subjectRhizotrons
dc.subjectMinirhhizotrons
dc.subjectRoot turn over
dc.titleRoot decomposition at high and low N supply throughout a crop rotation
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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