EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/8519 |
Resumo: | Studies on spatial variability of soil attributes of tropical pastures gather information that can assist in decision making about managements of these soils. The objective of the present study was to evaluate the spatial variability of soil chemical attributes and their effects on grass yield of Tifton 85. The experiment was carried out in an area of 3.91 ha at the Feno Rio Farm of the Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil. Soils of the 0-0.20 and 0.20-0.40 m layers were sampled considering an irregular sampling mesh, making a total of 50 georeferenced points. The parameters evaluated were: the soil chemical attributes pH, Al+3, Ca+2, Mg+2, Na+, K+, P, H+Al, and total organic carbon (TOC); and the Tifton 85 dry matter yield (DMY). The results of these parameters were subjected to descriptive statistics, linear correlation, and geostatistics, and maps were developed for the analyses. Regions with grass yields different from the general mean were found in the area, which presented mean grass yield of 2248 kg ha-1. The soil chemical parameters Na+, Ca+2, TOC, and H+Al were significantly correlated with DMY, confirming that they are important and affect the Tifton 85 grass yield. The mapping of the Tifton 85 cycle is important for understanding the variability of DMY. The investigation of areas with different productive potentials should be followed by development of maps of soil chemical attributes to correlate and understand the ratios that may be involved with these variations. |
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EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELDVARIABILIDADE ESPACIAL DE PARÂMETROS QUÍMICOS DO SOLO E SEUS EFEITOS NA PRODUTIVIDADE DA TIFTON 85Agricultura de precisão. Dependência espacial. Geoestatística.Precision agriculture. Spatial dependence. Geostatistics.Studies on spatial variability of soil attributes of tropical pastures gather information that can assist in decision making about managements of these soils. The objective of the present study was to evaluate the spatial variability of soil chemical attributes and their effects on grass yield of Tifton 85. The experiment was carried out in an area of 3.91 ha at the Feno Rio Farm of the Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil. Soils of the 0-0.20 and 0.20-0.40 m layers were sampled considering an irregular sampling mesh, making a total of 50 georeferenced points. The parameters evaluated were: the soil chemical attributes pH, Al+3, Ca+2, Mg+2, Na+, K+, P, H+Al, and total organic carbon (TOC); and the Tifton 85 dry matter yield (DMY). The results of these parameters were subjected to descriptive statistics, linear correlation, and geostatistics, and maps were developed for the analyses. Regions with grass yields different from the general mean were found in the area, which presented mean grass yield of 2248 kg ha-1. The soil chemical parameters Na+, Ca+2, TOC, and H+Al were significantly correlated with DMY, confirming that they are important and affect the Tifton 85 grass yield. The mapping of the Tifton 85 cycle is important for understanding the variability of DMY. The investigation of areas with different productive potentials should be followed by development of maps of soil chemical attributes to correlate and understand the ratios that may be involved with these variations.Os estudos sobre a variabilidade espacial de atributos do solo de pastagens tropicais buscam conhecimentos que possam auxiliar nas tomadas de decisões sobre os manejos destes solos. O presente estudo teve como objetivo avaliar a variabilidade espacial de atributos químicos do solo e seus efeitos na produtividade de área cultivada com Tifton 85. O experimento foi realizado na Fazenda Feno Rio, localizada na Universidade Federal Rural do Rio de Janeiro, em Seropédica, em uma área de 3,91 ha. Os solos foram amostrados em malha irregular, perfazendo o total de 50 pontos georreferenciados, nas profundidades de 0-0,20 e 0,20-0,40 m. Foram analisados os atributos químicos do solo pH em água, Al+3, Ca+2, Mg+2, Na+, K+, P, H+Al e COT, além da massa seca (MS) da Tifton 85 para avaliação da produtividade. A partir destes parâmetros foram realizadas análises de estatística descritiva, correlação linear, geoestatística e geração de mapas. Foi possível inferir diferentes zonas de produtividade em relação à média geral, verificando-se que a produtividade média na área foi de 2.248 kg ha-1. Os parâmetros químicos do solo Na+, Ca+2, COT e H+Al correlacionaram significativamente com a MS, confirmando serem importantes e interferirem na produtividade da Tifton 85. Percebeu-se que a realização de mapeamentos ao longo do ciclo da Tifton 85 são importantes na compreensão da variabilidade da produção de MS e a investigação de áreas com diferentes potenciais produtivos deve ser acompanhada de mapas de atributos químicos do solo, buscando correlacionar e entender as razões que podem estar envolvidas nestas variações. Universidade Federal Rural do Semi-Árido2020-02-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/851910.1590/1983-21252020v33n125rcREVISTA CAATINGA; Vol. 33 No. 01 (2020); 236-245Revista Caatinga; v. 33 n. 01 (2020); 236-2451983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/8519/10172Copyright (c) 2020 Revista Caatingainfo:eu-repo/semantics/openAccessda Silva, Eudocio Rafael Otáviode Barros, Murilo MachadoPereira, Marcos GervásioGomes, João Henrique GaiaSoares, Stephany da Costa2023-07-20T18:34:53Zoai:ojs.periodicos.ufersa.edu.br:article/8519Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:40.803679Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD VARIABILIDADE ESPACIAL DE PARÂMETROS QUÍMICOS DO SOLO E SEUS EFEITOS NA PRODUTIVIDADE DA TIFTON 85 |
title |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD |
spellingShingle |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD da Silva, Eudocio Rafael Otávio Agricultura de precisão. Dependência espacial. Geoestatística. Precision agriculture. Spatial dependence. Geostatistics. |
title_short |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD |
title_full |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD |
title_fullStr |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD |
title_full_unstemmed |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD |
title_sort |
EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD |
author |
da Silva, Eudocio Rafael Otávio |
author_facet |
da Silva, Eudocio Rafael Otávio de Barros, Murilo Machado Pereira, Marcos Gervásio Gomes, João Henrique Gaia Soares, Stephany da Costa |
author_role |
author |
author2 |
de Barros, Murilo Machado Pereira, Marcos Gervásio Gomes, João Henrique Gaia Soares, Stephany da Costa |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
da Silva, Eudocio Rafael Otávio de Barros, Murilo Machado Pereira, Marcos Gervásio Gomes, João Henrique Gaia Soares, Stephany da Costa |
dc.subject.por.fl_str_mv |
Agricultura de precisão. Dependência espacial. Geoestatística. Precision agriculture. Spatial dependence. Geostatistics. |
topic |
Agricultura de precisão. Dependência espacial. Geoestatística. Precision agriculture. Spatial dependence. Geostatistics. |
description |
Studies on spatial variability of soil attributes of tropical pastures gather information that can assist in decision making about managements of these soils. The objective of the present study was to evaluate the spatial variability of soil chemical attributes and their effects on grass yield of Tifton 85. The experiment was carried out in an area of 3.91 ha at the Feno Rio Farm of the Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil. Soils of the 0-0.20 and 0.20-0.40 m layers were sampled considering an irregular sampling mesh, making a total of 50 georeferenced points. The parameters evaluated were: the soil chemical attributes pH, Al+3, Ca+2, Mg+2, Na+, K+, P, H+Al, and total organic carbon (TOC); and the Tifton 85 dry matter yield (DMY). The results of these parameters were subjected to descriptive statistics, linear correlation, and geostatistics, and maps were developed for the analyses. Regions with grass yields different from the general mean were found in the area, which presented mean grass yield of 2248 kg ha-1. The soil chemical parameters Na+, Ca+2, TOC, and H+Al were significantly correlated with DMY, confirming that they are important and affect the Tifton 85 grass yield. The mapping of the Tifton 85 cycle is important for understanding the variability of DMY. The investigation of areas with different productive potentials should be followed by development of maps of soil chemical attributes to correlate and understand the ratios that may be involved with these variations. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-02-14 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/8519 10.1590/1983-21252020v33n125rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/8519 |
identifier_str_mv |
10.1590/1983-21252020v33n125rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/8519/10172 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 33 No. 01 (2020); 236-245 Revista Caatinga; v. 33 n. 01 (2020); 236-245 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674027804786688 |