Phosphorus foliar fertilization in guava trees
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.actahort.org/books/594/594_17.htm http://hdl.handle.net/11449/67104 |
Resumo: | Currently there is very little information on the response of fruiting perennial plants to applied P. This is especially true for tropical production areas where soils have a high capacity of P fixation, and are poor in native phosphorus. An alternative to soil P fertilization, which is inefficient in fixing soils, is to apply phosphorus as a foliar spray. P is quickly absorbed by leaves, and is redistributed quite well through the plants because its phloem mobility, and foliar application may be a viable practice. The purpose of this present work, is to determine the effectiveness of foliar P application on the nutritional status and yield of guava. The experiment was done in a Typic Hapludox, for three consecutive agricultural years, in an adult orchard of 'Paluma' guava. Five treatments were tested: four rates leaf applications of P (0-0.5-1.0 and 2.0% of P2O5) and a control where P was applied to soil (200 g of P2O5/plant). Through the results it was verified that the foliar application of P altered the concentration of the nutrient in the soil (13 to 48 mg dm-3 P-resin), and in the guava leaves (1.2 to 1.8 g of P kg-1), but did not affect the production of fruits. In conclusion, in field conditions, it is viable to combine the phosphorus foliar fertilization with disease control, without increasing the operations and, consequently, the production cost. |
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Phosphorus foliar fertilization in guava treesFruit cropNutritionOrchardP foliarPsidium guajavaCurrently there is very little information on the response of fruiting perennial plants to applied P. This is especially true for tropical production areas where soils have a high capacity of P fixation, and are poor in native phosphorus. An alternative to soil P fertilization, which is inefficient in fixing soils, is to apply phosphorus as a foliar spray. P is quickly absorbed by leaves, and is redistributed quite well through the plants because its phloem mobility, and foliar application may be a viable practice. The purpose of this present work, is to determine the effectiveness of foliar P application on the nutritional status and yield of guava. The experiment was done in a Typic Hapludox, for three consecutive agricultural years, in an adult orchard of 'Paluma' guava. Five treatments were tested: four rates leaf applications of P (0-0.5-1.0 and 2.0% of P2O5) and a control where P was applied to soil (200 g of P2O5/plant). Through the results it was verified that the foliar application of P altered the concentration of the nutrient in the soil (13 to 48 mg dm-3 P-resin), and in the guava leaves (1.2 to 1.8 g of P kg-1), but did not affect the production of fruits. In conclusion, in field conditions, it is viable to combine the phosphorus foliar fertilization with disease control, without increasing the operations and, consequently, the production cost.FCAV UNESP Universidade Estadual Paulista, Jaboticabal, São PauloCENA USP Universidade de São Paulo, Piracicaba, São PauloFCAV UNESP Universidade Estadual Paulista, Jaboticabal, São PauloUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Natale, W. [UNESP]Coutinho, E. L M [UNESP]Banzatto, D. A. [UNESP]Boaretto, A. E.2014-05-27T11:20:34Z2014-05-27T11:20:34Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject171-177http://www.actahort.org/books/594/594_17.htmActa Horticulturae, v. 594, p. 171-177.0567-7572http://hdl.handle.net/11449/67104WOS:0001815483000172-s2.0-8487463098106186051546384946726578534593471Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Horticulturae0,198info:eu-repo/semantics/openAccess2024-06-07T14:24:33Zoai:repositorio.unesp.br:11449/67104Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:02:51.420019Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Phosphorus foliar fertilization in guava trees |
title |
Phosphorus foliar fertilization in guava trees |
spellingShingle |
Phosphorus foliar fertilization in guava trees Natale, W. [UNESP] Fruit crop Nutrition Orchard P foliar Psidium guajava |
title_short |
Phosphorus foliar fertilization in guava trees |
title_full |
Phosphorus foliar fertilization in guava trees |
title_fullStr |
Phosphorus foliar fertilization in guava trees |
title_full_unstemmed |
Phosphorus foliar fertilization in guava trees |
title_sort |
Phosphorus foliar fertilization in guava trees |
author |
Natale, W. [UNESP] |
author_facet |
Natale, W. [UNESP] Coutinho, E. L M [UNESP] Banzatto, D. A. [UNESP] Boaretto, A. E. |
author_role |
author |
author2 |
Coutinho, E. L M [UNESP] Banzatto, D. A. [UNESP] Boaretto, A. E. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Natale, W. [UNESP] Coutinho, E. L M [UNESP] Banzatto, D. A. [UNESP] Boaretto, A. E. |
dc.subject.por.fl_str_mv |
Fruit crop Nutrition Orchard P foliar Psidium guajava |
topic |
Fruit crop Nutrition Orchard P foliar Psidium guajava |
description |
Currently there is very little information on the response of fruiting perennial plants to applied P. This is especially true for tropical production areas where soils have a high capacity of P fixation, and are poor in native phosphorus. An alternative to soil P fertilization, which is inefficient in fixing soils, is to apply phosphorus as a foliar spray. P is quickly absorbed by leaves, and is redistributed quite well through the plants because its phloem mobility, and foliar application may be a viable practice. The purpose of this present work, is to determine the effectiveness of foliar P application on the nutritional status and yield of guava. The experiment was done in a Typic Hapludox, for three consecutive agricultural years, in an adult orchard of 'Paluma' guava. Five treatments were tested: four rates leaf applications of P (0-0.5-1.0 and 2.0% of P2O5) and a control where P was applied to soil (200 g of P2O5/plant). Through the results it was verified that the foliar application of P altered the concentration of the nutrient in the soil (13 to 48 mg dm-3 P-resin), and in the guava leaves (1.2 to 1.8 g of P kg-1), but did not affect the production of fruits. In conclusion, in field conditions, it is viable to combine the phosphorus foliar fertilization with disease control, without increasing the operations and, consequently, the production cost. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-12-01 2014-05-27T11:20:34Z 2014-05-27T11:20:34Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.actahort.org/books/594/594_17.htm Acta Horticulturae, v. 594, p. 171-177. 0567-7572 http://hdl.handle.net/11449/67104 WOS:000181548300017 2-s2.0-84874630981 0618605154638494 6726578534593471 |
url |
http://www.actahort.org/books/594/594_17.htm http://hdl.handle.net/11449/67104 |
identifier_str_mv |
Acta Horticulturae, v. 594, p. 171-177. 0567-7572 WOS:000181548300017 2-s2.0-84874630981 0618605154638494 6726578534593471 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Acta Horticulturae 0,198 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
171-177 |
dc.source.none.fl_str_mv |
Scopus 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 |
|
_version_ |
1808129387066818560 |