CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016 http://hdl.handle.net/11449/159336 |
Resumo: | Considering the importance of nutrients in the soil for the plants development and the soil quality conservation and the quantification relevance of them for proper soil management, the aims of this research were: (i) to quantify the clay loss, adsorbed and soluble P from interrill erosion influenced by the presence of sugarcane residues on the ground surface; (ii) to determine the minimum percentage of residues to be maintained on the soil surface to not enrich the eroded sediment by clay and soluble P (P-sed) and adsorbed (P-ads). The experimental area is located in Guariba - SP, with soil classified as Red Dystrophic Oxisol. The experiment was designed based on results of previous experiments with residue analysis of variance for 40 plots. These experiments were conducted by our research group, which provided field representation and the establishment of a minimum number of degrees of freedom necessary to ensure normal distribution of results and variance homoscedasticity. The experimental design was completely randomized in a factorial design, 5 treatments with straw sugarcane and 3 repetitions, totaling 15 plots. In the treatments, the straw was manually distributed across the surface of the soil in amounts of 0; 0.16; 0.35; 0.52 to 0.7 Kg by plot, giving 0% coverage (SC0), 25% (SC25), 50% (SC50), 75% (SC75) and 100% (SC100), respectively. The experimental plots were subjected to simulated rain with average intensity of 60 mm h(-1) for 65 minutes. To avoid enrichment ratio (ER) of the sediment eroded by Psed, Pads and clay, a minimum soil surface coverage (SC) of 42% is necessary. |
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CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUESinterrill erosionsimulated rainfallvegetation coverConsidering the importance of nutrients in the soil for the plants development and the soil quality conservation and the quantification relevance of them for proper soil management, the aims of this research were: (i) to quantify the clay loss, adsorbed and soluble P from interrill erosion influenced by the presence of sugarcane residues on the ground surface; (ii) to determine the minimum percentage of residues to be maintained on the soil surface to not enrich the eroded sediment by clay and soluble P (P-sed) and adsorbed (P-ads). The experimental area is located in Guariba - SP, with soil classified as Red Dystrophic Oxisol. The experiment was designed based on results of previous experiments with residue analysis of variance for 40 plots. These experiments were conducted by our research group, which provided field representation and the establishment of a minimum number of degrees of freedom necessary to ensure normal distribution of results and variance homoscedasticity. The experimental design was completely randomized in a factorial design, 5 treatments with straw sugarcane and 3 repetitions, totaling 15 plots. In the treatments, the straw was manually distributed across the surface of the soil in amounts of 0; 0.16; 0.35; 0.52 to 0.7 Kg by plot, giving 0% coverage (SC0), 25% (SC25), 50% (SC50), 75% (SC75) and 100% (SC100), respectively. The experimental plots were subjected to simulated rain with average intensity of 60 mm h(-1) for 65 minutes. To avoid enrichment ratio (ER) of the sediment eroded by Psed, Pads and clay, a minimum soil surface coverage (SC) of 42% is necessary.Univ Estadual Paulista, Jaboticabal, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilSoc Brasil Engenharia AgricolaUniversidade Estadual Paulista (Unesp)De Paula, Daniela T. [UNESP]Martins Filho, Marcilio V. [UNESP]Farias, Vera L. Da S. [UNESP]Siqueira, Diego S. [UNESP]2018-11-26T15:38:02Z2018-11-26T15:38:02Z2016-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1063-1072application/pdfhttp://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 36, n. 6, p. 1063-1072, 2016.0100-6916http://hdl.handle.net/11449/15933610.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016S0100-69162016000601063WOS:000392917100011S0100-69162016000601063.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEngenharia Agricola0,305info:eu-repo/semantics/openAccess2023-10-20T06:08:17Zoai:repositorio.unesp.br:11449/159336Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-20T06:08:17Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
title |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
spellingShingle |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES De Paula, Daniela T. [UNESP] interrill erosion simulated rainfall vegetation cover |
title_short |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
title_full |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
title_fullStr |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
title_full_unstemmed |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
title_sort |
CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES |
author |
De Paula, Daniela T. [UNESP] |
author_facet |
De Paula, Daniela T. [UNESP] Martins Filho, Marcilio V. [UNESP] Farias, Vera L. Da S. [UNESP] Siqueira, Diego S. [UNESP] |
author_role |
author |
author2 |
Martins Filho, Marcilio V. [UNESP] Farias, Vera L. Da S. [UNESP] Siqueira, Diego S. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Paula, Daniela T. [UNESP] Martins Filho, Marcilio V. [UNESP] Farias, Vera L. Da S. [UNESP] Siqueira, Diego S. [UNESP] |
dc.subject.por.fl_str_mv |
interrill erosion simulated rainfall vegetation cover |
topic |
interrill erosion simulated rainfall vegetation cover |
description |
Considering the importance of nutrients in the soil for the plants development and the soil quality conservation and the quantification relevance of them for proper soil management, the aims of this research were: (i) to quantify the clay loss, adsorbed and soluble P from interrill erosion influenced by the presence of sugarcane residues on the ground surface; (ii) to determine the minimum percentage of residues to be maintained on the soil surface to not enrich the eroded sediment by clay and soluble P (P-sed) and adsorbed (P-ads). The experimental area is located in Guariba - SP, with soil classified as Red Dystrophic Oxisol. The experiment was designed based on results of previous experiments with residue analysis of variance for 40 plots. These experiments were conducted by our research group, which provided field representation and the establishment of a minimum number of degrees of freedom necessary to ensure normal distribution of results and variance homoscedasticity. The experimental design was completely randomized in a factorial design, 5 treatments with straw sugarcane and 3 repetitions, totaling 15 plots. In the treatments, the straw was manually distributed across the surface of the soil in amounts of 0; 0.16; 0.35; 0.52 to 0.7 Kg by plot, giving 0% coverage (SC0), 25% (SC25), 50% (SC50), 75% (SC75) and 100% (SC100), respectively. The experimental plots were subjected to simulated rain with average intensity of 60 mm h(-1) for 65 minutes. To avoid enrichment ratio (ER) of the sediment eroded by Psed, Pads and clay, a minimum soil surface coverage (SC) of 42% is necessary. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-10-01 2018-11-26T15:38:02Z 2018-11-26T15:38:02Z |
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/10.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016 Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 36, n. 6, p. 1063-1072, 2016. 0100-6916 http://hdl.handle.net/11449/159336 10.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016 S0100-69162016000601063 WOS:000392917100011 S0100-69162016000601063.pdf |
url |
http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016 http://hdl.handle.net/11449/159336 |
identifier_str_mv |
Engenharia Agricola. Jaboticabal: Soc Brasil Engenharia Agricola, v. 36, n. 6, p. 1063-1072, 2016. 0100-6916 10.1590/1809-4430-Eng.Agric.v36n6p1063-1072/2016 S0100-69162016000601063 WOS:000392917100011 S0100-69162016000601063.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Engenharia Agricola 0,305 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1063-1072 application/pdf |
dc.publisher.none.fl_str_mv |
Soc Brasil Engenharia Agricola |
publisher.none.fl_str_mv |
Soc Brasil Engenharia Agricola |
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 |
|
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1799964634381287424 |