Spatial relationships between soil attributes and corn yield in no-tillage system

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Marcos Sales [UNESP]
Data de Publicação: 2012
Outros Autores: Cora, Jose Eduardo [UNESP], Fernandes, Carolina [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-06832012000200029
http://hdl.handle.net/11449/3757
Resumo: Soil properties play an important role in spatial variability of crop yield. However, a low spatial correlation has generally been observed between maps of crop yield and of soil properties. The objectives of the present investigation were to assess the spatial pattern variability of soil properties and of corn yield at the same sampling intensity, and evaluate its cause-and-effect relationships. The experimental site was structured in a grid of 100 referenced points, spaced at 10 m intervals along four parallel 250 m long rows spaced 4.5 m apart. Thus, points formed a rectangle containing four columns and 25 rows. Therefore, each sampling cell encompassed an area of 45 m(2) and consisted of five 10 m long crop rows, in which the referenced points represented the center. Samples were taken from the layers 0-0.1 m and 0.1-0.2 m. Soil physical and chemical properties were evaluated. Statistical analyses consisted of data description and geostatistics. The spatial dependence of corn yield and soil properties was confirmed. The hypothesis of this study was confirmed, i.e., when sampling the soil to determine the values of soil characteristics at similar to sampling intensity as for crop yield assessments, correlations between the spatial distribution of soil characteristics and crop yield were observed. The spatial distribution pattern of soil properties explained 65 % of the spatial distribution pattern of corn yield. The spatial distribution pattern of clay content and percentage of soil base saturation explained most of the spatial distribution pattern of corn yield.
id UNSP_334656b72f20576c26755f9f936b869b
oai_identifier_str oai:repositorio.unesp.br:11449/3757
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Spatial relationships between soil attributes and corn yield in no-tillage systemRelação espacial entre atributos do solo e produtividade de milho em sistema de semeadura diretaGeostatisticsPrecision agriculturesoil sampling intensityspatial correlationZea maysSoil properties play an important role in spatial variability of crop yield. However, a low spatial correlation has generally been observed between maps of crop yield and of soil properties. The objectives of the present investigation were to assess the spatial pattern variability of soil properties and of corn yield at the same sampling intensity, and evaluate its cause-and-effect relationships. The experimental site was structured in a grid of 100 referenced points, spaced at 10 m intervals along four parallel 250 m long rows spaced 4.5 m apart. Thus, points formed a rectangle containing four columns and 25 rows. Therefore, each sampling cell encompassed an area of 45 m(2) and consisted of five 10 m long crop rows, in which the referenced points represented the center. Samples were taken from the layers 0-0.1 m and 0.1-0.2 m. Soil physical and chemical properties were evaluated. Statistical analyses consisted of data description and geostatistics. The spatial dependence of corn yield and soil properties was confirmed. The hypothesis of this study was confirmed, i.e., when sampling the soil to determine the values of soil characteristics at similar to sampling intensity as for crop yield assessments, correlations between the spatial distribution of soil characteristics and crop yield were observed. The spatial distribution pattern of soil properties explained 65 % of the spatial distribution pattern of corn yield. The spatial distribution pattern of clay content and percentage of soil base saturation explained most of the spatial distribution pattern of corn yield.Atributos do solo desempenham papel importante na variabilidade espacial da produtividade da cultura. Entretanto, o que se observa, geralmente, é uma baixa correlação espacial entre mapas de produtividade e mapas de atributos do solo. O objetivo deste trabalho foi estudar o padrão de distribuição espacial dos atributos do solo e da produtividade de milho e sua relação de causa e efeito, quando avaliados em semelhante intensidade amostral. Foi utilizada uma malha amostral de 100 pontos referenciados na área experimental. Os pontos foram espaçados em intervalos regulares de 10 m ao longo de quatro transeções de 250 m, espaçadas em 4,5 m. Os pontos formaram um retângulo com quatro colunas e 25 linhas. Portanto, cada célula amostral foi composta de cinco linhas da cultura com 10 m, totalizando uma área de 45 m2 cada, onde o ponto referenciado foi considerado o centro da célula. As amostras foram coletadas nas profundidades de 0-0,1 e 0,1-0,2 m. Foram avaliados atributos físicos e químicos do solo. Realizou-se a análise estatística descritiva dos dados e geoestatística. A produtividade de milho e os atributos do solo apresentaram dependência espacial. A hipótese deste estudo foi confirmada: quando a intensidade amostral dos atributos do solo é semelhante àquela da produtividade da cultura, é observada correlação entre os padrões de distribuição espacial de atributos do solo e produtividade da cultura. Os padrões de distribuição espacial dos atributos do solo explicaram 65 % do padrão de distribuição espacial da produtividade do milho. Os padrões de distribuição espacial dos teores de argila e da porcentagem de saturação por bases foram os que melhor explicaram o padrão de distribuição espacial da produtividade do milho.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State Univ UNESP, Dept Soil Sci, BR-14884900 Jaboticabal, SP, BrazilSão Paulo State Univ UNESP, Dept Soil Sci, BR-14884900 Jaboticabal, SP, BrazilFAPESP: 08/52559-3Sociedade Brasileira de Ciência do SoloUniversidade Estadual Paulista (Unesp)Rodrigues, Marcos Sales [UNESP]Cora, Jose Eduardo [UNESP]Fernandes, Carolina [UNESP]2014-05-20T13:17:12Z2014-05-20T13:17:12Z2012-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article599-609application/pdfhttp://dx.doi.org/10.1590/S0100-06832012000200029Revista Brasileira de Ciência do Solo. Vicosa: Soc Brasileira de Ciência do Solo, v. 36, n. 2, p. 599-609, 2012.0100-0683http://hdl.handle.net/11449/3757S0100-06832012000200029WOS:000304791000029S0100-06832012000200029-en.pdf0423131924105070Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência do Solo0.7990,679info:eu-repo/semantics/openAccess2023-10-24T06:06:00Zoai:repositorio.unesp.br:11449/3757Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-24T06:06Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Spatial relationships between soil attributes and corn yield in no-tillage system
Relação espacial entre atributos do solo e produtividade de milho em sistema de semeadura direta
title Spatial relationships between soil attributes and corn yield in no-tillage system
spellingShingle Spatial relationships between soil attributes and corn yield in no-tillage system
Rodrigues, Marcos Sales [UNESP]
Geostatistics
Precision agriculture
soil sampling intensity
spatial correlation
Zea mays
title_short Spatial relationships between soil attributes and corn yield in no-tillage system
title_full Spatial relationships between soil attributes and corn yield in no-tillage system
title_fullStr Spatial relationships between soil attributes and corn yield in no-tillage system
title_full_unstemmed Spatial relationships between soil attributes and corn yield in no-tillage system
title_sort Spatial relationships between soil attributes and corn yield in no-tillage system
author Rodrigues, Marcos Sales [UNESP]
author_facet Rodrigues, Marcos Sales [UNESP]
Cora, Jose Eduardo [UNESP]
Fernandes, Carolina [UNESP]
author_role author
author2 Cora, Jose Eduardo [UNESP]
Fernandes, Carolina [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Rodrigues, Marcos Sales [UNESP]
Cora, Jose Eduardo [UNESP]
Fernandes, Carolina [UNESP]
dc.subject.por.fl_str_mv Geostatistics
Precision agriculture
soil sampling intensity
spatial correlation
Zea mays
topic Geostatistics
Precision agriculture
soil sampling intensity
spatial correlation
Zea mays
description Soil properties play an important role in spatial variability of crop yield. However, a low spatial correlation has generally been observed between maps of crop yield and of soil properties. The objectives of the present investigation were to assess the spatial pattern variability of soil properties and of corn yield at the same sampling intensity, and evaluate its cause-and-effect relationships. The experimental site was structured in a grid of 100 referenced points, spaced at 10 m intervals along four parallel 250 m long rows spaced 4.5 m apart. Thus, points formed a rectangle containing four columns and 25 rows. Therefore, each sampling cell encompassed an area of 45 m(2) and consisted of five 10 m long crop rows, in which the referenced points represented the center. Samples were taken from the layers 0-0.1 m and 0.1-0.2 m. Soil physical and chemical properties were evaluated. Statistical analyses consisted of data description and geostatistics. The spatial dependence of corn yield and soil properties was confirmed. The hypothesis of this study was confirmed, i.e., when sampling the soil to determine the values of soil characteristics at similar to sampling intensity as for crop yield assessments, correlations between the spatial distribution of soil characteristics and crop yield were observed. The spatial distribution pattern of soil properties explained 65 % of the spatial distribution pattern of corn yield. The spatial distribution pattern of clay content and percentage of soil base saturation explained most of the spatial distribution pattern of corn yield.
publishDate 2012
dc.date.none.fl_str_mv 2012-03-01
2014-05-20T13:17:12Z
2014-05-20T13:17:12Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-06832012000200029
Revista Brasileira de Ciência do Solo. Vicosa: Soc Brasileira de Ciência do Solo, v. 36, n. 2, p. 599-609, 2012.
0100-0683
http://hdl.handle.net/11449/3757
S0100-06832012000200029
WOS:000304791000029
S0100-06832012000200029-en.pdf
0423131924105070
url http://dx.doi.org/10.1590/S0100-06832012000200029
http://hdl.handle.net/11449/3757
identifier_str_mv Revista Brasileira de Ciência do Solo. Vicosa: Soc Brasileira de Ciência do Solo, v. 36, n. 2, p. 599-609, 2012.
0100-0683
S0100-06832012000200029
WOS:000304791000029
S0100-06832012000200029-en.pdf
0423131924105070
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Brasileira de Ciência do Solo
0.799
0,679
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 599-609
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1799964677292163072

Registros relacionados