Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1144663
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dc.contributor.authorTASSINARI, A.
dc.contributor.authorSILVA, L. O. S. da
dc.contributor.authorDRRESCHER, G. L.
dc.contributor.authorOLIVEIRA, R. A. de
dc.contributor.authorBALDI, E.
dc.contributor.authorMELO, G. W. B. de
dc.contributor.authorZALAMENA, J.
dc.contributor.authorMAYER, N. A.
dc.contributor.authorGIACOMINI, S. J.
dc.contributor.authorCARRANCA, C. L. de A. F.
dc.contributor.authorFERREIRA, P. A. A.
dc.contributor.authorPAULA, B. V. de
dc.contributor.authorLOSS, A.
dc.contributor.authorTOSELLI, M.
dc.contributor.authorBRUNETTO, G.
dc.date.accessioned2022-07-12T19:19:38Z-
dc.date.available2022-07-12T19:19:38Z-
dc.date.created2022-07-12
dc.date.issued2021
dc.identifier.citationJournal of Soil Science and Plant Nutrition, v. 21, p. 2124-2136, 2021.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1144663-
dc.descriptionCover crop nitrogen (N) cycling has an important role in agricultural production and contributes to peach [Prunus persica (L.) Batsch] N nutrition. This study evaluated black oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum L.) residue decomposition dynamics, N recovery from cover crop residues, and N compartmentalization in peach tree organs. A 2-year field trial was developed with labeled (3.6?4.0 atom% 15N excess) cover crop shoot biomass application in a 5-year-old peach orchard. The region?s climate is warm temperate (Cfb), and the soil is classified as a Typic Hapludalf. Litter bags with unlabeled shoot residues were also deposited in the orchard to assess biomass, carbon (C), N, lignin, cellulose, and non-structural biomass decomposition dynamics. After 13 months, the leaves, trunk, and roots showed the greatest proportion of N derived from residues (Ndfr) (35.4, 25.1, and 22.4%, respectively) while the greatest concentrations of 15N and Ndfr occurred in roots <2 mm (0.0376 and 0.94%, respectively). The N derived from cover crop shoots in the second production cycle was similar among tree organs. Ryegrass residues presented the highest decomposition constant (k) values for dry matter, total organic carbon (TOC), cellulose, and lignin. Hence, black oat residues presented a higher half-life (t½) for dry matter, TOC, total N, cellulose, and lignin. The N derived from black oat and ryegrass residues in mature trees was expressively low (<1%) and similar between species. Within organs, the highest Ndfr occurred in peach leaves during the flowering stage, when the greatest residue decomposition rate also occurred. Soil N and plant internal N reserves are the major N sources for newly formed organs, but greater contributions to tree N nutrition may occur with long-term cover crop residue deposition and different plant species.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectNcycling
dc.subject15N recovery
dc.subjectPrunus persica L Batsch
dc.titleContribution of cover crop residue Decomposition to peach tree nitrogen nutrition.
dc.typeArtigo de periódico
dc.subject.thesagroAvena Strigosa
dc.subject.thesagroLolium Multiflorum
dc.subject.thesagroNitrogênio
dc.subject.thesagroPêssego
riaa.ainfo.id1144663
riaa.ainfo.lastupdate2022-07-12
dc.identifier.doihttps://doi.org/10.1007/s42729-021-00508-xeng
dc.contributor.institutionADRIELE TASSINARI, Federal University of Santa Maria
dc.contributor.institutionLINCON OLIVEIRA STEFANELLO DA SILVA, Federal University of Santa Mariaeng
dc.contributor.institutionGERSON LAERSON DRESCHER, University of Arkansaseng
dc.contributor.institutionRODOLFO ASSIS DE OLIVEIRA, Federal University of Santa Catarinaeng
dc.contributor.institutionELENA BALDI, University of Bolognaeng
dc.contributor.institutionGEORGE WELLINGTON BASTOS DE MELO, CNPUVeng
dc.contributor.institutionJOVANI ZALAMENA, Federal Institute of Education, Science and Technology of Rio Grande do Suleng
dc.contributor.institutionNEWTON ALEX MAYER, CPACTeng
dc.contributor.institutionSANDRO JOSÉ GIACOMINI, Federal University of Santa Mariaeng
dc.contributor.institutionCORINA LUISA DE ABREU FERNANDES CARRANCA, National Institute of Agricultural and Veterinary Researcheng
dc.contributor.institutionPAULO ADEMAR AVELAR FERREIRA, Federal University of Santa Mariaeng
dc.contributor.institutionBETANIA VAHL DE PAULA, Federal University of Santa Mariaeng
dc.contributor.institutionARCÂNGELO LOSS, Federal University of Santa Catarinaeng
dc.contributor.institutionMORENO TOSELLI, University of Bolognaeng
dc.contributor.institutionGUSTAVO BRUNETTO, Federal University of Santa Maria.eng
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