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Publicação:
Intensive annual crop production and root development in a tropical acid soil under long-term no-till and soil-amendment management

dc.contributor.authorDa Costa, Claudio H.M. [UNESP]
dc.contributor.authorFilho, Antonio C.A. Carmeis [UNESP]
dc.contributor.authorCrusciol, Carlos A.C. [UNESP]
dc.contributor.authorSoratto, Rogério P. [UNESP]
dc.contributor.authorGuimarães, Tiara M. [UNESP]
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:37:07Z
dc.date.available2018-12-11T17:37:07Z
dc.date.issued2018-01-01
dc.description.abstractIn tropical conservation agricultural systems, crop yield is limited by soil acidity and root-growth inhibition, especially under intensive crop rotation. This study evaluated the effect of surface applications of lime and phosphogypsum in improving soil fertility and crop yield in a tropical region. Four treatments were evaluated: control (without soil amendment) and application phosphogypsum (2.1 + 2.1 + 2.1 Mg ha -1), lime (2.7 + 2.0 + 2.0 Mg ha -1), and a combination of lime and phosphogypsum at the given rates, applied in 2002, 2004 and 2010, respectively. We evaluated the soil chemical properties, root development, plant nutrition, yield components and grain yield of 10 crops over 4 years using five species: maize (Zea mays), crambe (Crambe abyssinica), cowpea (Vigna unguiculata), wheat (Triticum aestivum) and common bean (Phaseolus vulgaris). Our long-term results demonstrate the benefits of surface liming in alleviating subsoil acidity, reducing Al 3+ toxicity, improving availability of Ca 2+ and Mg 2+, and increasing accumulation of soil organic matter in all soil profiles at depths up to 0.60 m. For maize and crambe, adding phosphogypsum increased development of plants and reproductive structures, which increased grain yield. Phosphogypsum exhibited synergistic effects in association with lime for maize and common bean. Phosphogypsum did not have an effect on cowpea and wheat, whereas surface liming was essential to improve plant nutrition, grain yield and wheat grain quality. The combination of both soil amendments is an important tool to reduce the soil acidification process, resulting in the highest levels of Ca 2+ and Mg 2+ and the highest base-saturation values in the topsoil layers (0-0.20 m) over time. Our long-term results showed the viability of surface liming plus phosphogypsum for improving tropical soil fertility, which can reflect an increase in grain yield and contribute to the sustainability of agricultural systems under intensive land use in highly weathered areas.en
dc.description.affiliationSpecial Academic Unit of Agricultural Sciences Federal University of Goiás (UFG)
dc.description.affiliationCollege of Agricultural Sciences Department of Crop Science São Paulo State University (FCA/UNESP), PO Box 237
dc.description.affiliationUnespCollege of Agricultural Sciences Department of Crop Science São Paulo State University (FCA/UNESP), PO Box 237
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent488-505
dc.identifierhttp://dx.doi.org/10.1071/CP17233
dc.identifier.citationCrop and Pasture Science, v. 69, n. 5, p. 488-505, 2018.
dc.identifier.doi10.1071/CP17233
dc.identifier.issn1836-5795
dc.identifier.issn1836-0947
dc.identifier.scopus2-s2.0-85047184860
dc.identifier.urihttp://hdl.handle.net/11449/179876
dc.language.isoeng
dc.relation.ispartofCrop and Pasture Science
dc.relation.ispartofsjr0,728
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBrazilian tropical soils
dc.subjectCrop production
dc.subjectLimestone
dc.subjectRoot growth
dc.subjectSOM
dc.titleIntensive annual crop production and root development in a tropical acid soil under long-term no-till and soil-amendment managementen
dc.typeArtigo
dspace.entity.typePublication
unesp.author.lattes9281484833327774[3]
unesp.author.orcid0000-0003-4673-1071[3]
unesp.departmentProdução e Melhoramento Vegetal - FCApt

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