Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282 |
Resumo: | The objective was to develop and test a procedure for applying variable rates of fertilizers and evaluate yield response in coffee (Coffea arabica L.) with regard to the application of phosphorus and potassium. The work was conducted during the 2004 season in a 6.4 ha field located in central São Paulo state. Two treatments were applied with alternating strips of fixed and variable rates during the whole season: one following the fertilizing procedures recommended locally, and the other based on a grid soil sampling. A prototype pneumatic fertilizer applicator was used, carrying two conveyor belts, one for each row. Harvesting was done with a commercial harvester equipped with a customized volumetric yield monitor, separating the two treatments. Data were analyzed based on geostatistics, correlations and regressions. The procedure showed to be feasible and effective. The area that received fertilizer applications at a variable rate showed a 34% yield increase compared to the area that received a fixed rate. The variable rate fertilizer resulted in a savings of 23% in phosphate fertilizer and a 13% increase in potassium fertilizer, when compared to fixed rate fertilizer. Yield in 2005, the year after the variable rate treatments, still presented residual effect from treatments carried out during the previous cycle. |
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Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282precision agricultureyield mapsoil fertilityprecision agricultureyield mapsoil fertility5.03.01.00-45.01.01.05-6The objective was to develop and test a procedure for applying variable rates of fertilizers and evaluate yield response in coffee (Coffea arabica L.) with regard to the application of phosphorus and potassium. The work was conducted during the 2004 season in a 6.4 ha field located in central São Paulo state. Two treatments were applied with alternating strips of fixed and variable rates during the whole season: one following the fertilizing procedures recommended locally, and the other based on a grid soil sampling. A prototype pneumatic fertilizer applicator was used, carrying two conveyor belts, one for each row. Harvesting was done with a commercial harvester equipped with a customized volumetric yield monitor, separating the two treatments. Data were analyzed based on geostatistics, correlations and regressions. The procedure showed to be feasible and effective. The area that received fertilizer applications at a variable rate showed a 34% yield increase compared to the area that received a fixed rate. The variable rate fertilizer resulted in a savings of 23% in phosphate fertilizer and a 13% increase in potassium fertilizer, when compared to fixed rate fertilizer. Yield in 2005, the year after the variable rate treatments, still presented residual effect from treatments carried out during the previous cycle.The objective was to develop and test a procedure for applying variable rates of fertilizers and evaluate yield response in coffee (Coffea arabica L.) with regard to the application of phosphorus and potassium. The work was conducted during the 2004 season in a 6.4 ha field located in central São Paulo state. Two treatments were applied with alternating strips of fixed and variable rates during the whole season: one following the fertilizing procedures recommended locally, and the other based on a grid soil sampling. A prototype pneumatic fertilizer applicator was used, carrying two conveyor belts, one for each row. Harvesting was done with a commercial harvester equipped with a customized volumetric yield monitor, separating the two treatments. Data were analyzed based on geostatistics, correlations and regressions. The procedure showed to be feasible and effective. The area that received fertilizer applications at a variable rate showed a 34% yield increase compared to the area that received a fixed rate. The variable rate fertilizer resulted in a savings of 23% in phosphate fertilizer and a 13% increase in potassium fertilizer, when compared to fixed rate fertilizer. Yield in 2005, the year after the variable rate treatments, still presented residual effect from treatments carried out during the previous cycle.Universidade Estadual de Maringá2010-11-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfapplication/mswordapplication/mswordhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/528210.4025/actasciagron.v32i4.5282Acta Scientiarum. Agronomy; Vol 32 No 4 (2010); 569-575Acta Scientiarum. Agronomy; v. 32 n. 4 (2010); 569-5751807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMengporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/5282Ahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/5282http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/751375140868http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/751375140869Molin, José PauloMotomiya, Anamari Viegas de AraujoFrasson, Flavia RoncatoFaulin, Gustavo Di ChiacchioTosta, Wandersoninfo:eu-repo/semantics/openAccess2022-11-23T18:38:09Zoai:periodicos.uem.br/ojs:article/5282Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:09Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
title |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
spellingShingle |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 Molin, José Paulo precision agriculture yield map soil fertility precision agriculture yield map soil fertility 5.03.01.00-4 5.01.01.05-6 |
title_short |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
title_full |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
title_fullStr |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
title_full_unstemmed |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
title_sort |
Test procedure for variable rate fertilizer on coffee - doi: 10.4025/actasciagron.v32i4.5282 |
author |
Molin, José Paulo |
author_facet |
Molin, José Paulo Motomiya, Anamari Viegas de Araujo Frasson, Flavia Roncato Faulin, Gustavo Di Chiacchio Tosta, Wanderson |
author_role |
author |
author2 |
Motomiya, Anamari Viegas de Araujo Frasson, Flavia Roncato Faulin, Gustavo Di Chiacchio Tosta, Wanderson |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Molin, José Paulo Motomiya, Anamari Viegas de Araujo Frasson, Flavia Roncato Faulin, Gustavo Di Chiacchio Tosta, Wanderson |
dc.subject.por.fl_str_mv |
precision agriculture yield map soil fertility precision agriculture yield map soil fertility 5.03.01.00-4 5.01.01.05-6 |
topic |
precision agriculture yield map soil fertility precision agriculture yield map soil fertility 5.03.01.00-4 5.01.01.05-6 |
description |
The objective was to develop and test a procedure for applying variable rates of fertilizers and evaluate yield response in coffee (Coffea arabica L.) with regard to the application of phosphorus and potassium. The work was conducted during the 2004 season in a 6.4 ha field located in central São Paulo state. Two treatments were applied with alternating strips of fixed and variable rates during the whole season: one following the fertilizing procedures recommended locally, and the other based on a grid soil sampling. A prototype pneumatic fertilizer applicator was used, carrying two conveyor belts, one for each row. Harvesting was done with a commercial harvester equipped with a customized volumetric yield monitor, separating the two treatments. Data were analyzed based on geostatistics, correlations and regressions. The procedure showed to be feasible and effective. The area that received fertilizer applications at a variable rate showed a 34% yield increase compared to the area that received a fixed rate. The variable rate fertilizer resulted in a savings of 23% in phosphate fertilizer and a 13% increase in potassium fertilizer, when compared to fixed rate fertilizer. Yield in 2005, the year after the variable rate treatments, still presented residual effect from treatments carried out during the previous cycle. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-11-29 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282 10.4025/actasciagron.v32i4.5282 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282 |
identifier_str_mv |
10.4025/actasciagron.v32i4.5282 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/5282A http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/5282 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/751375140868 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5282/751375140869 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/msword application/msword |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 32 No 4 (2010); 569-575 Acta Scientiarum. Agronomy; v. 32 n. 4 (2010); 569-575 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305907046187008 |