Soil-applied nitrogen uptake by young olive cultivars intercropped or not with Paspalum notatum

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dc.contributor.authorHindersmann, Jacson
dc.contributor.authorTassinari, Adriele
dc.contributor.authorTrentin, Edicarla
dc.contributor.authorMallmann, Fábio Joel Kochem
dc.contributor.authorTrapp, Talita
dc.contributor.authorStefanello, Lincon Oliveira
dc.contributor.authorTabaldi, Luciane Almeri
dc.contributor.authorAguilar, Marcos Vinícius Miranda
dc.contributor.authorLoss, Arcângelo
dc.contributor.authorPaula, Betania Vahl de
dc.contributor.authorSantos, Eduardo Maciel Haitzmann dos [UNESP]
dc.contributor.authorTrevisan, Renato
dc.contributor.authorCosta, Vagner Brasil
dc.contributor.authorBrunetto, Gustavo
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Pernambuco (UFPE)
dc.date.accessioned2023-07-29T13:53:02Z
dc.date.available2023-07-29T13:53:02Z
dc.date.issued2023-08-01
dc.description.abstractNitrogen (N) applications can be made in orchards to meet the N demand of the olive tree (Olea europaea L.), which may differ between cultivars. But part of the N in the fertilizer may be taken up by ground cover plant species, which can be native, such as Paspalum notatum (P. notatum), derived from the Pampa biome in South America and present in olive orchards. The study aimed to evaluate the recovery and distribution of N fertilizer by olive cultivars, grown alone and intercropped with P. notatum. Young plants of olive cultivars 'Arbosana', 'Coratina' and 'Picual', with and without intercropping with P. notatum, were grown in pots with sandy soil for 16 months. Urea enriched with 10% excess atoms of 15N (0.32 g N vase−1) was applied. Dry matter production and total N and 15N values in soil and plant organs were evaluated. Photosynthetic and chlorophyll a fluorescence parameters were determined. Fertilizer-derived N (Ndff), soil-derived N (Ndfs) and fertilizer-derived N recovery were calculated. The highest values of recovery of applied N were observed in the organs of olive trees grown without the presence of P. notatum. Ndff applied to the soil surface was accumulated mainly in the leaves and roots of olive trees. The recovery of applied N in cultivars 'Arbosana', 'Picual' and 'Coratina' were low, not exceeding 15% of the N supplied. P. notatum showed a great ability to compete with olive trees for mineral forms of N available in the soil. This is because it decreased growth and N in organs of the olive cultivars.en
dc.description.affiliationDepartment of Soil Science Center of Rural Science Federal University of Santa Maria (UFSM), Av. Roraima 1000, Camobi, RS
dc.description.affiliationDepartment of Rural Engineering Center of Rural Science Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga 1346, SC
dc.description.affiliationDepartment of Biology Center for Natural and Exact Sciences Federal University of Santa Maria (UFSM), Av. Roraima 1000, Camobi, RS
dc.description.affiliationDepartment of Forestry Engineering Center of Rural Science Federal University of Santa Maria (UFSM), Av. Roraima 1000, Camobi, RS
dc.description.affiliationDepartment of Agronomy São Paulo State University “Júlio de Mesquita Filho” (UNESP), Registro Campus, Av. Nelson Brihi Badur, 430 – Vila Tupi, SP
dc.description.affiliationPolytechnic College of Federal University of Santa Maria (Poli-UFSM), Av. Roraima 1000, Camobi, RS
dc.description.affiliationDepartment of Plant Science Faculty of Agronomy Eliseu Maciel Federal University of Pelotas (UFPel), RS
dc.description.affiliationUnespDepartment of Agronomy São Paulo State University “Júlio de Mesquita Filho” (UNESP), Registro Campus, Av. Nelson Brihi Badur, 430 – Vila Tupi, SP
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 301509/2015-8
dc.description.sponsorshipIdCNPq: 302023/2019-4
dc.identifierhttp://dx.doi.org/10.1016/j.scienta.2023.112100
dc.identifier.citationScientia Horticulturae, v. 318.
dc.identifier.doi10.1016/j.scienta.2023.112100
dc.identifier.issn0304-4238
dc.identifier.scopus2-s2.0-85154619188
dc.identifier.urihttp://hdl.handle.net/11449/248760
dc.language.isoeng
dc.relation.ispartofScientia Horticulturae
dc.sourceScopus
dc.subject15N isotopes
dc.subjectN distribution
dc.subjectN recovery
dc.subjectNitrogen fertilization
dc.subjectOlea europaea L.
dc.titleSoil-applied nitrogen uptake by young olive cultivars intercropped or not with Paspalum notatumen
dc.typeArtigo
unesp.author.orcid0000-0002-3851-1418[1]
unesp.departmentEngenharia Agronômica - FCAVRpt

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