Effect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees

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dc.contributor.authorGil, P. M.
dc.contributor.authorBonomelli, C.
dc.contributor.authorSchaffer, B.
dc.contributor.authorFerreyra, R.
dc.contributor.authorGentina, C.
dc.date.accessioned2024-01-10T12:05:07Z
dc.date.available2024-01-10T12:05:07Z
dc.date.issued2012
dc.description.abstractIn Chile, expansion of avocado production has resulted in many orchards established in marginal soils that are poorly drained and have high soil water-to-air ratios when soil moisture is at field capacity. However, avocado trees are sensitive to poor soil aeration. A study was conducted to determine the effects of different soil water-to-air ratios (W/A) on biomass and nutrient content of avocado trees. Two-year-old avocado trees were grown for 2 seasons in containers in soils, with different W/A, collected from different avocado growing regions of Chile. There were five treatments corresponding to each of the five soils. At field capacity, the two-season average W/A was 1.7, 1.3, 0.6, 0.4 or 0.3 for treatments T1, T2, T3, T4, or T5, respectively. The same amount of fertilizer was applied to each soil. Mineral element concentrations and total mineral element contents in leaves, shoots, wood and roots were determined for each tree in each treatment at the end of the experimental period. Shoot and root fresh and dry weights, leaf area and leaf retention were also determined. Although all treatments showed non-limiting soil oxygen conditions for avocado root growth, trees in soils with lower W/A had greater shoot and root dry weights and longer autumn leaf retention. Macro-and micronutrient concentrations in any plant tissue were not related to soil W/A. However, total tissue contents of N, P, K, Ca, Mg, C, N and B in roots and whole plants were highest in treatments with lower soil W/A. The results indicate that soil W/A significantly affects growth and mineral nutrition of avocado trees and should be considered for avocado site selection and management.
dc.description.funderINNOVA-CORFO (Chile)
dc.format.extent22 páginas
dc.fuente.origenWOS
dc.identifier.doi10.4067/S0718-95162012005000030
dc.identifier.eissn0718-9516
dc.identifier.issn0718-9508
dc.identifier.urihttps://doi.org/10.4067/S0718-95162012005000030
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/75949
dc.identifier.wosidWOS:000314468900020
dc.information.autorucAgronomía e Ing. Forestal;Bonomelli C;S/I;51457
dc.information.autorucAgronomía e Ing. Forestal;Gil P;S/I;152259
dc.issue.numero3
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final630
dc.pagina.inicio609
dc.publisherSPRINGER INTERNATIONAL PUBLISHING AG
dc.revistaJOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
dc.rightsregistro bibliográfico
dc.subjectmineral nutrition
dc.subjectnutrient uptake
dc.subjectsoil aeration
dc.subjectavocado
dc.subjectSEEDLING ROOT
dc.subjectTEXTURE
dc.subjectPLANTS
dc.subjectRESPONSES
dc.subjectETHYLENE
dc.subjectGROWTH
dc.subjectOXYGEN
dc.subjectMODEL
dc.subject.ods02 Zero Hunger
dc.subject.odspa02 Hambre cero
dc.titleEffect of soil water-to-air ratio on biomass and mineral nutrition of avocado trees
dc.typeartículo
dc.volumen12
sipa.codpersvinculados51457
sipa.codpersvinculados152259
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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