Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer

Detalhes bibliográficos
Autor(a) principal: Bley,Henrique
Data de Publicação: 2017
Outros Autores: Gianello,Clesio, Santos,Lenio da Silva, Selau,Lisiane Priscila Roldão
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=S0100-06832017000100509
Resumo: ABSTRACT The increase in food consumption and limitations in food production areas requires improved fertilizer efficiency. Slow- or controlled-release fertilizers are an alternative for synchronizing nutrient availability with the plant demands, reducing losses to the environment. The aim of this study was to evaluate the efficacy of polymer-coated KCl compared with conventional KCl. The products were incubated in soil under controlled conditions to evaluate the time required for nutrient release. A greenhouse experiment was performed with corn plants in pots with loamy sand- or clay-textured soil types to evaluate plant nutrition and losses due to leaching. The K application rates were 0, 18, 36, and 54 mg dm-3. The pots were irrigated, and the percolated liquid was collected. The plants were harvested 30 days after sowing to quantify dry matter (DM) and its K content. In the incubation study, the K release from the coated fertilizer was found to be 42 % over 154 days. The data were fit to a linear function from which a period of 315 days was estimated as required for the release of 75 % of the nutrient. Meanwhile, conventional KCl releases 85 % of the K nutrient in the first 48h. In the cultivation of plants in pots, the coating reduced K losses due to leaching in the loamy sand soil; however, only the application rate of 54 mg dm-3 promoted DM production equivalent to conventional KCl. It is possible that the need for K in the early stages of corn development was not met by a coated KCl.
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spelling Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizerenhanced efficiencyslow- or controlled-releaseleachingABSTRACT The increase in food consumption and limitations in food production areas requires improved fertilizer efficiency. Slow- or controlled-release fertilizers are an alternative for synchronizing nutrient availability with the plant demands, reducing losses to the environment. The aim of this study was to evaluate the efficacy of polymer-coated KCl compared with conventional KCl. The products were incubated in soil under controlled conditions to evaluate the time required for nutrient release. A greenhouse experiment was performed with corn plants in pots with loamy sand- or clay-textured soil types to evaluate plant nutrition and losses due to leaching. The K application rates were 0, 18, 36, and 54 mg dm-3. The pots were irrigated, and the percolated liquid was collected. The plants were harvested 30 days after sowing to quantify dry matter (DM) and its K content. In the incubation study, the K release from the coated fertilizer was found to be 42 % over 154 days. The data were fit to a linear function from which a period of 315 days was estimated as required for the release of 75 % of the nutrient. Meanwhile, conventional KCl releases 85 % of the K nutrient in the first 48h. In the cultivation of plants in pots, the coating reduced K losses due to leaching in the loamy sand soil; however, only the application rate of 54 mg dm-3 promoted DM production equivalent to conventional KCl. It is possible that the need for K in the early stages of corn development was not met by a coated KCl.Sociedade Brasileira de Ciência do Solo2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100509Revista Brasileira de Ciência do Solo v.41 2017reponame:Revista Brasileira de Ciência do Solo (Online)instname:Sociedade Brasileira de Ciência do Solo (SBCS)instacron:SBCS10.1590/18069657rbcs20160142info:eu-repo/semantics/openAccessBley,HenriqueGianello,ClesioSantos,Lenio da SilvaSelau,Lisiane Priscila Roldãoeng2017-03-24T00:00:00Zoai:scielo:S0100-06832017000100509Revistahttp://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:2017-03-24T00:00Revista Brasileira de Ciência do Solo (Online) - Sociedade Brasileira de Ciência do Solo (SBCS)false
dc.title.none.fl_str_mv Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
title Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
spellingShingle Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
Bley,Henrique
enhanced efficiency
slow- or controlled-release
leaching
title_short Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
title_full Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
title_fullStr Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
title_full_unstemmed Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
title_sort Nutrient Release, Plant Nutrition, and Potassium Leaching from Polymer-Coated Fertilizer
author Bley,Henrique
author_facet Bley,Henrique
Gianello,Clesio
Santos,Lenio da Silva
Selau,Lisiane Priscila Roldão
author_role author
author2 Gianello,Clesio
Santos,Lenio da Silva
Selau,Lisiane Priscila Roldão
author2_role author
author
author
dc.contributor.author.fl_str_mv Bley,Henrique
Gianello,Clesio
Santos,Lenio da Silva
Selau,Lisiane Priscila Roldão
dc.subject.por.fl_str_mv enhanced efficiency
slow- or controlled-release
leaching
topic enhanced efficiency
slow- or controlled-release
leaching
description ABSTRACT The increase in food consumption and limitations in food production areas requires improved fertilizer efficiency. Slow- or controlled-release fertilizers are an alternative for synchronizing nutrient availability with the plant demands, reducing losses to the environment. The aim of this study was to evaluate the efficacy of polymer-coated KCl compared with conventional KCl. The products were incubated in soil under controlled conditions to evaluate the time required for nutrient release. A greenhouse experiment was performed with corn plants in pots with loamy sand- or clay-textured soil types to evaluate plant nutrition and losses due to leaching. The K application rates were 0, 18, 36, and 54 mg dm-3. The pots were irrigated, and the percolated liquid was collected. The plants were harvested 30 days after sowing to quantify dry matter (DM) and its K content. In the incubation study, the K release from the coated fertilizer was found to be 42 % over 154 days. The data were fit to a linear function from which a period of 315 days was estimated as required for the release of 75 % of the nutrient. Meanwhile, conventional KCl releases 85 % of the K nutrient in the first 48h. In the cultivation of plants in pots, the coating reduced K losses due to leaching in the loamy sand soil; however, only the application rate of 54 mg dm-3 promoted DM production equivalent to conventional KCl. It is possible that the need for K in the early stages of corn development was not met by a coated KCl.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100509
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100509
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/18069657rbcs20160142
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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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.41 2017
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)
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institution SBCS
reponame_str Revista Brasileira de Ciência do Solo (Online)
collection Revista Brasileira de Ciência do Solo (Online)
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