The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/15521 |
Resumo: | A field experiment with three phosphorus sources (triple superphosphate (TSP), thermal phosphate (TP) and phosphate rock (PR)) and two levels of lime was conducted in an acid oxisol of low fertility (clayey oxidic typic acrustox) to determine the amount of P required for establishment of a legume-based pasture, the relative efficiency of three sources and, the response to three rates of annual refertilization. The pasture was an association of Andropogon gayanus Kunth, var. bisquamulatus (Hoechst Hack) cv. Planaltina and Stylosanthes capitata (Vog) CIAT 1078. Best results were obtained with TP, specially during first and second year. This effect occurred at both 0 and 1650 kg ha-1 of Mg enriched lime (Calcium carbonate equivalent = 602). Forage yield obtained with 26 P kg ha-1 as TSP and PR at double rate (52 P kg/ha) increased with time, being similar to that obtained with TP (26 P kg/ha) by the fourth year. Annual refertilization at 13 and 26 P kg/ha improved yield during second and third years but yield increase due to annual refertilization decreased on time. Pasture response (o annual refertilization depended on P source but was not affected by initial P rate. Despite the relatively high amount of P and other nutrients being applied, pasture establishment was very slow and forage yield considerably low, reaching 3.8 ton ha-1 year-1 with best treatments. |
id |
EMBRAPA-4_22e29f21298f1d2a666fadd2283095d9 |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/15521 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soilEficiência de três fontes de fósforo para fertilização em solo de cerradoAndropogon gayanus; Stylosanthes capitata; refertilization; oxisols; red-yellow latosolsAndropogon gayanus; Stylosanthes capitata; refertillzação; Oxssolo; Latossolo Vermelho-Amarelo.A field experiment with three phosphorus sources (triple superphosphate (TSP), thermal phosphate (TP) and phosphate rock (PR)) and two levels of lime was conducted in an acid oxisol of low fertility (clayey oxidic typic acrustox) to determine the amount of P required for establishment of a legume-based pasture, the relative efficiency of three sources and, the response to three rates of annual refertilization. The pasture was an association of Andropogon gayanus Kunth, var. bisquamulatus (Hoechst Hack) cv. Planaltina and Stylosanthes capitata (Vog) CIAT 1078. Best results were obtained with TP, specially during first and second year. This effect occurred at both 0 and 1650 kg ha-1 of Mg enriched lime (Calcium carbonate equivalent = 602). Forage yield obtained with 26 P kg ha-1 as TSP and PR at double rate (52 P kg/ha) increased with time, being similar to that obtained with TP (26 P kg/ha) by the fourth year. Annual refertilization at 13 and 26 P kg/ha improved yield during second and third years but yield increase due to annual refertilization decreased on time. Pasture response (o annual refertilization depended on P source but was not affected by initial P rate. Despite the relatively high amount of P and other nutrients being applied, pasture establishment was very slow and forage yield considerably low, reaching 3.8 ton ha-1 year-1 with best treatments.Em um experimento do campo num Oxissolo de baixa fertilidade (clayey oxidic typic acrustox) (LV), foram testadas três fontes de fósforo: superfosfato triplo (ST), termofosfato (TF) e fosfato natural de Araxá (FA) o dois níveis de calcário, para determinar a quantidade de P necessária para o estabelecimento de uma pastagem consorciada, a eficiência relativa das três fontes, e a resposta às três doses anuais de refertilização. A pastagem de Andropogon gayanus Kunth, var. bisquamulatus (Hoechst Hack) cv. Planaltina, consorciada com Stylosanthes capitata (Vog) CIAT 1078. Os melhores resultados foram obtidos com o TF, principalmente no primeiro e no segundo ano. Esse efeito benéfico do TF ocorreu em 0 e 1.650 kg/ha de calcário enriquecido com Mg (equivalente em carbonato de cálcio = 60,2). A produção de forragem obtida com 26 kg/ha de P como ST e FA e com o dobro da dose (52 kg/ha de P) aumentou com o tempo, sendo similar à obtida com TF (26 kg/ha de P) no quarto ano. A refertilização anual com 13 e 26 kg/ha de P melhorou a produção no segundo e no terceiro ano, mas esse aumento de produção devido à refertilização decresceu com o tempo. A resposta da pastagem à refertilização anual dependeu da fonte de P, mas não foi afetada pela dose inicial de P aplicado. Apesar da quantidade relativamente grande de P aplicado e de outros nutrientes, o processo de estabelecimento da pastagem foi muito lento, e a produção foi consideravelmente baixa, alcançando 3,8 t ha/ano nos melhores tratamentos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCouto, WalterLeite, GilbertoSanzonowicz, Cláudio2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15521Pesquisa Agropecuaria Brasileira; v.24, n.4, abr. 1989; 423-430Pesquisa Agropecuária Brasileira; v.24, n.4, abr. 1989; 423-4301678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/15521/9485info:eu-repo/semantics/openAccess2014-08-25T18:13:00Zoai:ojs.seer.sct.embrapa.br:article/15521Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-25T18:13Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil Eficiência de três fontes de fósforo para fertilização em solo de cerrado |
title |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil |
spellingShingle |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil Couto, Walter Andropogon gayanus; Stylosanthes capitata; refertilization; oxisols; red-yellow latosols Andropogon gayanus; Stylosanthes capitata; refertillzação; Oxssolo; Latossolo Vermelho-Amarelo. |
title_short |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil |
title_full |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil |
title_fullStr |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil |
title_full_unstemmed |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil |
title_sort |
The effectiveness of three phosphorus sources for pasture fertilization in a cerrado soil |
author |
Couto, Walter |
author_facet |
Couto, Walter Leite, Gilberto Sanzonowicz, Cláudio |
author_role |
author |
author2 |
Leite, Gilberto Sanzonowicz, Cláudio |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Couto, Walter Leite, Gilberto Sanzonowicz, Cláudio |
dc.subject.por.fl_str_mv |
Andropogon gayanus; Stylosanthes capitata; refertilization; oxisols; red-yellow latosols Andropogon gayanus; Stylosanthes capitata; refertillzação; Oxssolo; Latossolo Vermelho-Amarelo. |
topic |
Andropogon gayanus; Stylosanthes capitata; refertilization; oxisols; red-yellow latosols Andropogon gayanus; Stylosanthes capitata; refertillzação; Oxssolo; Latossolo Vermelho-Amarelo. |
description |
A field experiment with three phosphorus sources (triple superphosphate (TSP), thermal phosphate (TP) and phosphate rock (PR)) and two levels of lime was conducted in an acid oxisol of low fertility (clayey oxidic typic acrustox) to determine the amount of P required for establishment of a legume-based pasture, the relative efficiency of three sources and, the response to three rates of annual refertilization. The pasture was an association of Andropogon gayanus Kunth, var. bisquamulatus (Hoechst Hack) cv. Planaltina and Stylosanthes capitata (Vog) CIAT 1078. Best results were obtained with TP, specially during first and second year. This effect occurred at both 0 and 1650 kg ha-1 of Mg enriched lime (Calcium carbonate equivalent = 602). Forage yield obtained with 26 P kg ha-1 as TSP and PR at double rate (52 P kg/ha) increased with time, being similar to that obtained with TP (26 P kg/ha) by the fourth year. Annual refertilization at 13 and 26 P kg/ha improved yield during second and third years but yield increase due to annual refertilization decreased on time. Pasture response (o annual refertilization depended on P source but was not affected by initial P rate. Despite the relatively high amount of P and other nutrients being applied, pasture establishment was very slow and forage yield considerably low, reaching 3.8 ton ha-1 year-1 with best treatments. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/15521 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15521 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15521/9485 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.24, n.4, abr. 1989; 423-430 Pesquisa Agropecuária Brasileira; v.24, n.4, abr. 1989; 423-430 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416673016938496 |