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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
13/08/1992 |
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Data da última atualização: |
13/08/1992 |
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Autoria: |
ZEKRI, M.; KOO, R. C. J. |
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Afiliação: |
Citrus Research and Education Center, University of Florida, IFAS, 700 Experiment Station Road, Lake Alfred, FL 33850. |
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Título: |
Comparative effects of controlled-release and soluble fertilizers on young "Valencia" orange trees. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Proc. Fla. State Hort. Soc. v.104, p.199-202, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of 3 controlled-release fertilizers (sulfurcoated urea, methylene urea, and sulfur-coated potassium) were compared to 2 soluble sources (ammonium nitrate and potassium chloride) on young "Valencia" orange trees grown in central Florida. Compared to the controlled-release fertilizers, the soluble fertilizers were more readily available but had shorter residual effects on leaf and soil nitrogen (N) and potassium (K) concentrations. In the top 12 inches of soil, the controlled-release N plots contained 23% more total N than the soluble N plots, while the controlled-release K plots contained 56% more extractable K than the soluble K plots. Differences in soil N concentrations were also found between the 2 controlled-release N sources (sulfur-coated urea and methylene urea) which could be related to the release characteristics of these 2 N sources. Compared to soluble fertilizers, application frequency of controlled-release compounds was reduced from 15 to 6 applications with no adverse effects on tree growth, leaf mineral concentration, or soil fertility during the first 3 yr. Combining soluble and controlled-release fertilizers in young tree fertilization can offer an economical and an effective program for citrus growers. |
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Palavras-Chave: |
analise da folha; Tamanho do fruto. |
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Thesagro: |
Análise do Solo; Crescimento; Fertilizante; Nutrição. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01835naa a2200205 a 4500
001 1633635
005 1992-08-13
008 1991 bl uuuu u00u1 u #d
100 1 $aZEKRI, M.
245 $aComparative effects of controlled-release and soluble fertilizers on young "Valencia" orange trees.
260 $c1991
520 $aThe effects of 3 controlled-release fertilizers (sulfurcoated urea, methylene urea, and sulfur-coated potassium) were compared to 2 soluble sources (ammonium nitrate and potassium chloride) on young "Valencia" orange trees grown in central Florida. Compared to the controlled-release fertilizers, the soluble fertilizers were more readily available but had shorter residual effects on leaf and soil nitrogen (N) and potassium (K) concentrations. In the top 12 inches of soil, the controlled-release N plots contained 23% more total N than the soluble N plots, while the controlled-release K plots contained 56% more extractable K than the soluble K plots. Differences in soil N concentrations were also found between the 2 controlled-release N sources (sulfur-coated urea and methylene urea) which could be related to the release characteristics of these 2 N sources. Compared to soluble fertilizers, application frequency of controlled-release compounds was reduced from 15 to 6 applications with no adverse effects on tree growth, leaf mineral concentration, or soil fertility during the first 3 yr. Combining soluble and controlled-release fertilizers in young tree fertilization can offer an economical and an effective program for citrus growers.
650 $aAnálise do Solo
650 $aCrescimento
650 $aFertilizante
650 $aNutrição
653 $aanalise da folha
653 $aTamanho do fruto
700 1 $aKOO, R. C. J.
773 $tProc. Fla. State Hort. Soc.$gv.104, p.199-202, 1991.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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ID |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
07/02/2013 |
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Data da última atualização: |
26/04/2024 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
PORTO, E. R. (ed.). |
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Afiliação: |
EVERALDO ROCHA PORTO, CPATSA. |
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Título: |
Diagnóstico agropecuário do Município de Petrolina: cartilha de orientação. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Petrolina: Embrapa Semi-Árido: Prefeitura Municipal de Petrolina, 2003. |
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Páginas: |
Não paginado |
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Idioma: |
Português |
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Conteúdo: |
Cartilha de orientação para diagnóstico agropecuário do Município de Petrolina. |
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Palavras-Chave: |
Diagnóstico agropecuário; Diagnóstico municipal de Petrolina; Social development. |
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Thesagro: |
Agricultura familiar. |
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Thesaurus NAL: |
Family farms. |
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Categoria do assunto: |
B Sociologia Rural |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182747/1/FL-03535.pdf
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Marc: |
LEADER 00663nam a2200181 a 4500
001 1948613
005 2024-04-26
008 2003 bl uuuu u0uu1 u #d
100 1 $aPORTO, E. R.
245 $aDiagnóstico agropecuário do Município de Petrolina$bcartilha de orientação.
260 $aPetrolina: Embrapa Semi-Árido: Prefeitura Municipal de Petrolina$c2003
300 $aNão paginado
520 $aCartilha de orientação para diagnóstico agropecuário do Município de Petrolina.
650 $aFamily farms
650 $aAgricultura familiar
653 $aDiagnóstico agropecuário
653 $aDiagnóstico municipal de Petrolina
653 $aSocial development
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Origem |
Tipo/Formato |
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