Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/185177 |
Resumo: | The use of gypsum to improve the root environment in tropical soils in the southeastern and central-western regions of Brazil is a widespread practice with well-established recommendation criteria. However, only recently gypsum began to be used on subtropical soils in South of Brazil, so available knowledge of its effect on crop yield is incipient and mainly for soils under no-till (NT) systems. Avaiable studies span a wide range of responses, from a substantial increase to a slight reduction in crop yield. Also, the specific conditions leading to a favorable effect of gypsum application on crop yield are yet to be accurately identified. The primary objectives of this study were to examine previously reported results to assess the likelihood of a crop response to gypsum and to develop useful recommendation criteria for gypsum application to subtropical soils under NT in Brazil. For this purpose, we examined the results of a total of 73 growing seasons, reported in 20 different scientific publications that assessed grain yield as a function of gypsum rates. Four different scenarios were examined, by the occurrence or not of high subsurface acidity (viz., Al saturation >20 % and/or exchangeable Ca <0.5 cmolc dm-3 in the 0.20-0.40 m soil layer) and of water deficiency during the crop cycle Based on the results, for grasses, 10 % Al saturation and/or 3 cmolc dm-3 exchangeable Ca in the soil subsurface layer (0.20-0.40 m) is more suitable than the current recommendation (Al saturation of 20 % and/or 0.5 cmolc dm-3 Ca) for subtropical NT soils in Brazil. Also, applying gypsum to NT soils with low subsurface acidity (Al saturation <10 %) and with an adequate Ca content (>3 cmolc dm-3) failed to increase crop yield, irrespective of the soil water status. Under these conditions, high gypsum rates (6-15 Mg ha-1) may even reduce grain yield, possibly by inducing K and Mg deficiency. On the other hand, applying gypsum to soils with high subsurface acidity increased yield by 16 % in corn (87 % of cases) and by 19 % in winter cereals (83 % of cases), whether or not the soil was water-deficient. By contrast, soybean yield was only increased by gypsum applied in the simultaneous presence of high soil subsurface acidity and water deficiency (average increase 27 %, 100 % of cases). |
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Tiecher, TalesPias, Osmar Henrique de CastroBayer, CimelioMartins, Amanda PosseltDenardin, Luiz Gustavo de OliveiraAnghinoni, Ibanor2018-11-28T02:45:41Z20180100-0683http://hdl.handle.net/10183/185177001079193The use of gypsum to improve the root environment in tropical soils in the southeastern and central-western regions of Brazil is a widespread practice with well-established recommendation criteria. However, only recently gypsum began to be used on subtropical soils in South of Brazil, so available knowledge of its effect on crop yield is incipient and mainly for soils under no-till (NT) systems. Avaiable studies span a wide range of responses, from a substantial increase to a slight reduction in crop yield. Also, the specific conditions leading to a favorable effect of gypsum application on crop yield are yet to be accurately identified. The primary objectives of this study were to examine previously reported results to assess the likelihood of a crop response to gypsum and to develop useful recommendation criteria for gypsum application to subtropical soils under NT in Brazil. For this purpose, we examined the results of a total of 73 growing seasons, reported in 20 different scientific publications that assessed grain yield as a function of gypsum rates. Four different scenarios were examined, by the occurrence or not of high subsurface acidity (viz., Al saturation >20 % and/or exchangeable Ca <0.5 cmolc dm-3 in the 0.20-0.40 m soil layer) and of water deficiency during the crop cycle Based on the results, for grasses, 10 % Al saturation and/or 3 cmolc dm-3 exchangeable Ca in the soil subsurface layer (0.20-0.40 m) is more suitable than the current recommendation (Al saturation of 20 % and/or 0.5 cmolc dm-3 Ca) for subtropical NT soils in Brazil. Also, applying gypsum to NT soils with low subsurface acidity (Al saturation <10 %) and with an adequate Ca content (>3 cmolc dm-3) failed to increase crop yield, irrespective of the soil water status. Under these conditions, high gypsum rates (6-15 Mg ha-1) may even reduce grain yield, possibly by inducing K and Mg deficiency. On the other hand, applying gypsum to soils with high subsurface acidity increased yield by 16 % in corn (87 % of cases) and by 19 % in winter cereals (83 % of cases), whether or not the soil was water-deficient. By contrast, soybean yield was only increased by gypsum applied in the simultaneous presence of high soil subsurface acidity and water deficiency (average increase 27 %, 100 % of cases).application/pdfengRevista brasileira de ciencia do solo. Viçosa. Vol. 42 (fev. 2018), [art.] e0170025, 17 p.Química do soloFertilizante fosfatadoPlantio diretoPhosphogypsumAluminum saturationSubsurface acidityBase saturationCrop response to gypsum application to subtropical soils under no-till in Brazil : a systematic reviewinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001079193.pdf.txt001079193.pdf.txtExtracted Texttext/plain56694http://www.lume.ufrgs.br/bitstream/10183/185177/2/001079193.pdf.txt389e3eff8870ffe9840e4d39e321bc3bMD52ORIGINAL001079193.pdfTexto completo (inglês)application/pdf1555185http://www.lume.ufrgs.br/bitstream/10183/185177/1/001079193.pdf3b02ccb92addf3090f27f495d408b1d3MD5110183/1851772018-11-29 02:46:45.83276oai:www.lume.ufrgs.br:10183/185177Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-11-29T04:46:45Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
title |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
spellingShingle |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review Tiecher, Tales Química do solo Fertilizante fosfatado Plantio direto Phosphogypsum Aluminum saturation Subsurface acidity Base saturation |
title_short |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
title_full |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
title_fullStr |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
title_full_unstemmed |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
title_sort |
Crop response to gypsum application to subtropical soils under no-till in Brazil : a systematic review |
author |
Tiecher, Tales |
author_facet |
Tiecher, Tales Pias, Osmar Henrique de Castro Bayer, Cimelio Martins, Amanda Posselt Denardin, Luiz Gustavo de Oliveira Anghinoni, Ibanor |
author_role |
author |
author2 |
Pias, Osmar Henrique de Castro Bayer, Cimelio Martins, Amanda Posselt Denardin, Luiz Gustavo de Oliveira Anghinoni, Ibanor |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Tiecher, Tales Pias, Osmar Henrique de Castro Bayer, Cimelio Martins, Amanda Posselt Denardin, Luiz Gustavo de Oliveira Anghinoni, Ibanor |
dc.subject.por.fl_str_mv |
Química do solo Fertilizante fosfatado Plantio direto |
topic |
Química do solo Fertilizante fosfatado Plantio direto Phosphogypsum Aluminum saturation Subsurface acidity Base saturation |
dc.subject.eng.fl_str_mv |
Phosphogypsum Aluminum saturation Subsurface acidity Base saturation |
description |
The use of gypsum to improve the root environment in tropical soils in the southeastern and central-western regions of Brazil is a widespread practice with well-established recommendation criteria. However, only recently gypsum began to be used on subtropical soils in South of Brazil, so available knowledge of its effect on crop yield is incipient and mainly for soils under no-till (NT) systems. Avaiable studies span a wide range of responses, from a substantial increase to a slight reduction in crop yield. Also, the specific conditions leading to a favorable effect of gypsum application on crop yield are yet to be accurately identified. The primary objectives of this study were to examine previously reported results to assess the likelihood of a crop response to gypsum and to develop useful recommendation criteria for gypsum application to subtropical soils under NT in Brazil. For this purpose, we examined the results of a total of 73 growing seasons, reported in 20 different scientific publications that assessed grain yield as a function of gypsum rates. Four different scenarios were examined, by the occurrence or not of high subsurface acidity (viz., Al saturation >20 % and/or exchangeable Ca <0.5 cmolc dm-3 in the 0.20-0.40 m soil layer) and of water deficiency during the crop cycle Based on the results, for grasses, 10 % Al saturation and/or 3 cmolc dm-3 exchangeable Ca in the soil subsurface layer (0.20-0.40 m) is more suitable than the current recommendation (Al saturation of 20 % and/or 0.5 cmolc dm-3 Ca) for subtropical NT soils in Brazil. Also, applying gypsum to NT soils with low subsurface acidity (Al saturation <10 %) and with an adequate Ca content (>3 cmolc dm-3) failed to increase crop yield, irrespective of the soil water status. Under these conditions, high gypsum rates (6-15 Mg ha-1) may even reduce grain yield, possibly by inducing K and Mg deficiency. On the other hand, applying gypsum to soils with high subsurface acidity increased yield by 16 % in corn (87 % of cases) and by 19 % in winter cereals (83 % of cases), whether or not the soil was water-deficient. By contrast, soybean yield was only increased by gypsum applied in the simultaneous presence of high soil subsurface acidity and water deficiency (average increase 27 %, 100 % of cases). |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-11-28T02:45:41Z |
dc.date.issued.fl_str_mv |
2018 |
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0100-0683 |
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Revista brasileira de ciencia do solo. Viçosa. Vol. 42 (fev. 2018), [art.] e0170025, 17 p. |
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