Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/184664 |
Resumo: | The sampling methods for soil and plant evaluation in integrated production systems need to be refined for their use in experiments. This study purposed a sampling representativeness model to evaluate soil carbon and physiological parameters of marandu palisadegrass intercropped with double rows of eucalyptus in a silvopastoral system in southeastern Brazil. Four transects were delimited within the silvopastoral system and the soil was sampled at 0-5, 5-10, and 10- 20 cm depths to evaluate two parameters of soil organic matter: total organic carbon (TOC) and soil microbial carbon (Cmic). We also evaluated three physiological parameters of marandu palisadegrass: stomatal conductance, transpiration rate, and photosynthetic rate. The sampling strategy was evaluated by the Hatheway and Modified Maximum Curvature (MMC) methods. We found that cultivation of the alley with forage grass and double rows of eucalyptus must be considered to ensure sampling representativeness in a silvopastoral system, once TOC and Cmic and physiological parameters showed variation within the integrated production system. The MMC method could be useful to evaluate silvopastoral systems for experiments and characterization of agricultural areas, as 11 soil samples are representative to evaluate Cmic and TOC, and 13 samples are enough to evaluate the physiological parameters in marandu palisadegrass. The Hatheway method could be applied to experiments that need higher accuracy with a reduction in the minimum difference to be detected between the treatments and a consequent increase in the number of samples to be collected. |
id |
USP-18_45ff31fc9ae7fa4fa27cd418ae70d2ff |
---|---|
oai_identifier_str |
oai:revistas.usp.br:article/184664 |
network_acronym_str |
USP-18 |
network_name_str |
Scientia Agrícola (Online) |
repository_id_str |
|
spelling |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral systemEucalyptusMMC methodHatheway methodforage grasssoil samplingThe sampling methods for soil and plant evaluation in integrated production systems need to be refined for their use in experiments. This study purposed a sampling representativeness model to evaluate soil carbon and physiological parameters of marandu palisadegrass intercropped with double rows of eucalyptus in a silvopastoral system in southeastern Brazil. Four transects were delimited within the silvopastoral system and the soil was sampled at 0-5, 5-10, and 10- 20 cm depths to evaluate two parameters of soil organic matter: total organic carbon (TOC) and soil microbial carbon (Cmic). We also evaluated three physiological parameters of marandu palisadegrass: stomatal conductance, transpiration rate, and photosynthetic rate. The sampling strategy was evaluated by the Hatheway and Modified Maximum Curvature (MMC) methods. We found that cultivation of the alley with forage grass and double rows of eucalyptus must be considered to ensure sampling representativeness in a silvopastoral system, once TOC and Cmic and physiological parameters showed variation within the integrated production system. The MMC method could be useful to evaluate silvopastoral systems for experiments and characterization of agricultural areas, as 11 soil samples are representative to evaluate Cmic and TOC, and 13 samples are enough to evaluate the physiological parameters in marandu palisadegrass. The Hatheway method could be applied to experiments that need higher accuracy with a reduction in the minimum difference to be detected between the treatments and a consequent increase in the number of samples to be collected.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2021-04-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/18466410.1590/1678-992X-2020-0176Scientia Agricola; v. 78 n. Supl. 1 (2021); e20200176Scientia Agricola; Vol. 78 Núm. Supl. 1 (2021); e20200176Scientia Agricola; Vol. 78 No. Supl. 1 (2021); e202001761678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/184664/170843Copyright (c) 2021 Scientia Agricolahttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessOliveira, Jaqueline de Cássia de Azevedo, Alcinei Místico Ribeiro, Juliana Martins Freitas, Igor Costa Dias, Rafael Ferreira Duarte, Ana Clara Santos Melo, Paula Franciele Veloso, Álvaro Luís Frazão, Leidivan Almeida 2021-04-22T15:04:08Zoai:revistas.usp.br:article/184664Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2021-04-22T15:04:08Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
title |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
spellingShingle |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system Oliveira, Jaqueline de Cássia de Eucalyptus MMC method Hatheway method forage grass soil sampling |
title_short |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
title_full |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
title_fullStr |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
title_full_unstemmed |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
title_sort |
Sampling representativeness of soil carbon and physiological parameters of marandu palisadegrass in a tropical silvopastoral system |
author |
Oliveira, Jaqueline de Cássia de |
author_facet |
Oliveira, Jaqueline de Cássia de Azevedo, Alcinei Místico Ribeiro, Juliana Martins Freitas, Igor Costa Dias, Rafael Ferreira Duarte, Ana Clara Santos Melo, Paula Franciele Veloso, Álvaro Luís Frazão, Leidivan Almeida |
author_role |
author |
author2 |
Azevedo, Alcinei Místico Ribeiro, Juliana Martins Freitas, Igor Costa Dias, Rafael Ferreira Duarte, Ana Clara Santos Melo, Paula Franciele Veloso, Álvaro Luís Frazão, Leidivan Almeida |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Jaqueline de Cássia de Azevedo, Alcinei Místico Ribeiro, Juliana Martins Freitas, Igor Costa Dias, Rafael Ferreira Duarte, Ana Clara Santos Melo, Paula Franciele Veloso, Álvaro Luís Frazão, Leidivan Almeida |
dc.subject.por.fl_str_mv |
Eucalyptus MMC method Hatheway method forage grass soil sampling |
topic |
Eucalyptus MMC method Hatheway method forage grass soil sampling |
description |
The sampling methods for soil and plant evaluation in integrated production systems need to be refined for their use in experiments. This study purposed a sampling representativeness model to evaluate soil carbon and physiological parameters of marandu palisadegrass intercropped with double rows of eucalyptus in a silvopastoral system in southeastern Brazil. Four transects were delimited within the silvopastoral system and the soil was sampled at 0-5, 5-10, and 10- 20 cm depths to evaluate two parameters of soil organic matter: total organic carbon (TOC) and soil microbial carbon (Cmic). We also evaluated three physiological parameters of marandu palisadegrass: stomatal conductance, transpiration rate, and photosynthetic rate. The sampling strategy was evaluated by the Hatheway and Modified Maximum Curvature (MMC) methods. We found that cultivation of the alley with forage grass and double rows of eucalyptus must be considered to ensure sampling representativeness in a silvopastoral system, once TOC and Cmic and physiological parameters showed variation within the integrated production system. The MMC method could be useful to evaluate silvopastoral systems for experiments and characterization of agricultural areas, as 11 soil samples are representative to evaluate Cmic and TOC, and 13 samples are enough to evaluate the physiological parameters in marandu palisadegrass. The Hatheway method could be applied to experiments that need higher accuracy with a reduction in the minimum difference to be detected between the treatments and a consequent increase in the number of samples to be collected. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-04-22 |
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://www.revistas.usp.br/sa/article/view/184664 10.1590/1678-992X-2020-0176 |
url |
https://www.revistas.usp.br/sa/article/view/184664 |
identifier_str_mv |
10.1590/1678-992X-2020-0176 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/184664/170843 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Scientia Agricola http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Scientia Agricola http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 78 n. Supl. 1 (2021); e20200176 Scientia Agricola; Vol. 78 Núm. Supl. 1 (2021); e20200176 Scientia Agricola; Vol. 78 No. Supl. 1 (2021); e20200176 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222794633445376 |