Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100010 |
Resumo: | Eucalyptus plantation in Brazil is generally set on low fertility soils, therefore phosphorus (P) fertilization is mandatory and increases the cost of plantation operation. Using species that more efficiently uptake phosphorus from less soluble sources is an interesting option. However, little is known about eucalyptus regarding its ability of using less soluble forms of phosphorus. The use of P by eucalyptus (E. urophylla, E. grandis, and E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis) was studied in greenhouse using a loamy-textured, hipodystrophic Typic Haplustox from the Cerrado region, and 32P isotopic method. The P sources tested were triple superphosphate (TSP), phosphate rock (PR) and the triple superphosphate mixed with PR (TSP+PR). The effectiveness of P sources in terms of increasing dry matter yield was TSP = (TSP + PR) > PR, and the P uptake followed the order (TSP + PR) > TSP > PR for both species plus the hybrid. The increase in P uptake from PR due to TSP influence was 217.3% for E. urophylla, 235.7% for E. grandis, and 28.7% for E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis, indicating an enhancement effect of TSP on the effectiveness of PR. The hybrid E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis was the most efficient genotype on P soil use and E. grandis most exigent in P fertilizer. |
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Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracerL valueP sourcesradioisotopeEucalyptus plantation in Brazil is generally set on low fertility soils, therefore phosphorus (P) fertilization is mandatory and increases the cost of plantation operation. Using species that more efficiently uptake phosphorus from less soluble sources is an interesting option. However, little is known about eucalyptus regarding its ability of using less soluble forms of phosphorus. The use of P by eucalyptus (E. urophylla, E. grandis, and E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis) was studied in greenhouse using a loamy-textured, hipodystrophic Typic Haplustox from the Cerrado region, and 32P isotopic method. The P sources tested were triple superphosphate (TSP), phosphate rock (PR) and the triple superphosphate mixed with PR (TSP+PR). The effectiveness of P sources in terms of increasing dry matter yield was TSP = (TSP + PR) > PR, and the P uptake followed the order (TSP + PR) > TSP > PR for both species plus the hybrid. The increase in P uptake from PR due to TSP influence was 217.3% for E. urophylla, 235.7% for E. grandis, and 28.7% for E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis, indicating an enhancement effect of TSP on the effectiveness of PR. The hybrid E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis was the most efficient genotype on P soil use and E. grandis most exigent in P fertilizer.Escola Superior de Agricultura "Luiz de Queiroz"2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100010Scientia Agricola v.63 n.1 2006reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162006000100010info:eu-repo/semantics/openAccessVillanueva,Felipe Carlos AlvarezMuraoka,TakashiTrevizam,Anderson RicardoFranzini,Vinicius IdeRocha,Alexandre Pradoeng2006-02-22T00:00:00Zoai:scielo:S0103-90162006000100010Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2006-02-22T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
title |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
spellingShingle |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer Villanueva,Felipe Carlos Alvarez L value P sources radioisotope |
title_short |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
title_full |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
title_fullStr |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
title_full_unstemmed |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
title_sort |
Improving phosphorus availability from patos phosphate rock for Eucalyptus: a study with 32P radiotracer |
author |
Villanueva,Felipe Carlos Alvarez |
author_facet |
Villanueva,Felipe Carlos Alvarez Muraoka,Takashi Trevizam,Anderson Ricardo Franzini,Vinicius Ide Rocha,Alexandre Prado |
author_role |
author |
author2 |
Muraoka,Takashi Trevizam,Anderson Ricardo Franzini,Vinicius Ide Rocha,Alexandre Prado |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Villanueva,Felipe Carlos Alvarez Muraoka,Takashi Trevizam,Anderson Ricardo Franzini,Vinicius Ide Rocha,Alexandre Prado |
dc.subject.por.fl_str_mv |
L value P sources radioisotope |
topic |
L value P sources radioisotope |
description |
Eucalyptus plantation in Brazil is generally set on low fertility soils, therefore phosphorus (P) fertilization is mandatory and increases the cost of plantation operation. Using species that more efficiently uptake phosphorus from less soluble sources is an interesting option. However, little is known about eucalyptus regarding its ability of using less soluble forms of phosphorus. The use of P by eucalyptus (E. urophylla, E. grandis, and E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis) was studied in greenhouse using a loamy-textured, hipodystrophic Typic Haplustox from the Cerrado region, and 32P isotopic method. The P sources tested were triple superphosphate (TSP), phosphate rock (PR) and the triple superphosphate mixed with PR (TSP+PR). The effectiveness of P sources in terms of increasing dry matter yield was TSP = (TSP + PR) > PR, and the P uptake followed the order (TSP + PR) > TSP > PR for both species plus the hybrid. The increase in P uptake from PR due to TSP influence was 217.3% for E. urophylla, 235.7% for E. grandis, and 28.7% for E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis, indicating an enhancement effect of TSP on the effectiveness of PR. The hybrid E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis was the most efficient genotype on P soil use and E. grandis most exigent in P fertilizer. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-90162006000100010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.63 n.1 2006 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_ |
1748936460091785216 |