Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ciência do Solo (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300026 |
Resumo: | Hygroscopic fertilizers tend to absorb moisture from the air and may have undesirable characteristics such as moistness, clumping and lower fluidity, hampering the application. The increasing use of urea is due to its numerous advantages, although this nitrogen (N) source is highly susceptible to volatilization losses, particularly when applied to the soil surface of management systems with conservation of crop residues. The volatilization losses can be minimized by slow or controlled-release fertilizers, with controlled water solubility of the urea-coating materials; and by stabilized fertilizers, which prolong the period during which N remains in the amide or ammonia forms by urease inhibitors. This study evaluated the hygroscopicity of and ammonia volatilization from urea coated with boric acid and copper sulfate or with sulfur. The hygroscopicity of the sources was evaluated over time after exposure to five levels of relative humidity (RH) and volatilization evaluated after application to the soil surface covered with sugarcane trash. Ammonium nitrate has a low potential for volatilization losses, but is highly hygroscopic. Although coating with boric acid and copper sulfate or elemental sulfur reduced the critical humidity level of urea, the delay in the volatilization process is a potential positive factor. |
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Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated ureaboric acidsulfurcrop residuescopper sulphateHygroscopic fertilizers tend to absorb moisture from the air and may have undesirable characteristics such as moistness, clumping and lower fluidity, hampering the application. The increasing use of urea is due to its numerous advantages, although this nitrogen (N) source is highly susceptible to volatilization losses, particularly when applied to the soil surface of management systems with conservation of crop residues. The volatilization losses can be minimized by slow or controlled-release fertilizers, with controlled water solubility of the urea-coating materials; and by stabilized fertilizers, which prolong the period during which N remains in the amide or ammonia forms by urease inhibitors. This study evaluated the hygroscopicity of and ammonia volatilization from urea coated with boric acid and copper sulfate or with sulfur. The hygroscopicity of the sources was evaluated over time after exposure to five levels of relative humidity (RH) and volatilization evaluated after application to the soil surface covered with sugarcane trash. Ammonium nitrate has a low potential for volatilization losses, but is highly hygroscopic. Although coating with boric acid and copper sulfate or elemental sulfur reduced the critical humidity level of urea, the delay in the volatilization process is a potential positive factor.Sociedade Brasileira de Ciência do Solo2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300026Revista Brasileira de Ciência do Solo v.38 n.3 2014reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/S0100-06832014000300026info:eu-repo/semantics/openAccessFaria,Letícia de AbreuNascimento,Carlos Antonio Costa doVentura,Barbara PaquierFlorim,Gabriela PerissinottoLuz,Pedro Henrique de CerqueiraVitti,Godofredo Cesareng2014-07-23T00:00:00Zoai:scielo:S0100-06832014000300026Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=es&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||sbcs@ufv.br1806-96570100-0683opendoar:2014-07-23T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false |
dc.title.none.fl_str_mv |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
title |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
spellingShingle |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea Faria,Letícia de Abreu boric acid sulfur crop residues copper sulphate |
title_short |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
title_full |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
title_fullStr |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
title_full_unstemmed |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
title_sort |
Hygroscopicity and ammonia volatilization losses from nitrogen sources in coated urea |
author |
Faria,Letícia de Abreu |
author_facet |
Faria,Letícia de Abreu Nascimento,Carlos Antonio Costa do Ventura,Barbara Paquier Florim,Gabriela Perissinotto Luz,Pedro Henrique de Cerqueira Vitti,Godofredo Cesar |
author_role |
author |
author2 |
Nascimento,Carlos Antonio Costa do Ventura,Barbara Paquier Florim,Gabriela Perissinotto Luz,Pedro Henrique de Cerqueira Vitti,Godofredo Cesar |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Faria,Letícia de Abreu Nascimento,Carlos Antonio Costa do Ventura,Barbara Paquier Florim,Gabriela Perissinotto Luz,Pedro Henrique de Cerqueira Vitti,Godofredo Cesar |
dc.subject.por.fl_str_mv |
boric acid sulfur crop residues copper sulphate |
topic |
boric acid sulfur crop residues copper sulphate |
description |
Hygroscopic fertilizers tend to absorb moisture from the air and may have undesirable characteristics such as moistness, clumping and lower fluidity, hampering the application. The increasing use of urea is due to its numerous advantages, although this nitrogen (N) source is highly susceptible to volatilization losses, particularly when applied to the soil surface of management systems with conservation of crop residues. The volatilization losses can be minimized by slow or controlled-release fertilizers, with controlled water solubility of the urea-coating materials; and by stabilized fertilizers, which prolong the period during which N remains in the amide or ammonia forms by urease inhibitors. This study evaluated the hygroscopicity of and ammonia volatilization from urea coated with boric acid and copper sulfate or with sulfur. The hygroscopicity of the sources was evaluated over time after exposure to five levels of relative humidity (RH) and volatilization evaluated after application to the soil surface covered with sugarcane trash. Ammonium nitrate has a low potential for volatilization losses, but is highly hygroscopic. Although coating with boric acid and copper sulfate or elemental sulfur reduced the critical humidity level of urea, the delay in the volatilization process is a potential positive factor. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 |
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=S0100-06832014000300026 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300026 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0100-06832014000300026 |
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 |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciência do Solo v.38 n.3 2014 reponame:Revista Brasileira de Ciência do Solo (Online) instname:Sociedade Brasileira de Ciência do Solo (SBCS) instacron:SBCS |
instname_str |
Sociedade Brasileira de Ciência do Solo (SBCS) |
instacron_str |
SBCS |
institution |
SBCS |
reponame_str |
Revista Brasileira de Ciência do Solo (Online) |
collection |
Revista Brasileira de Ciência do Solo (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS) |
repository.mail.fl_str_mv |
||sbcs@ufv.br |
_version_ |
1752126519506894848 |