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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
14/07/1992 |
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Data da última atualização: |
14/07/1992 |
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Autoria: |
IGUE, K.; FUENTES, R.; BORNEMISZA, E. |
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Afiliação: |
IICA-CEIT, Turrialba. |
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Título: |
Mineralizacion de P-organico en suelos acidos de Costa Rica. |
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Ano de publicação: |
1971 |
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Fonte/Imprenta: |
Turrialba, v.21, n.1, p.47-52, 1971. |
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Idioma: |
Espanhol |
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Conteúdo: |
Mineralization of organic phosphorus was studied in three volcanic soils of Costa Rica. The results indicated that for Juray (Alluvial) and Birrisito (vitrandept) mineralization was observed measured by an increase in inorganic P, after 10 months incubation. For Colorado series (distropets) imobilization occured. For the first 3 months of incubation inmobilization was observed for all soils. When inorganic P was fractionated the results show no relationship with mineralizartion, it rather shows variability of the Al-P, Fe-P and Ca-P during the incubation period. Lime application did not show any definite pattern. There was no effect for Colorado soil, but decreased and increased organic-P for Birrisito and Juray respectively. When temperature was compared there was no difference between room temperature (23oC) and 35oC. Phosphate application increased inorganic fractions of P, and increased organic P for Colorado soil. Mineralization seems to have occured for soils high in total P and high in organic P. - The authors. |
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Palavras-Chave: |
Regiao tropical; Torride zone. |
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Thesagro: |
Acidez; Solo Ácido. |
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Thesaurus Nal: |
acid soils; Costa Rica; tropical soils. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01604naa a2200229 a 4500
001 1457779
005 1992-07-14
008 1971 bl --- 0-- u #d
100 1 $aIGUE, K.
245 $aMineralizacion de P-organico en suelos acidos de Costa Rica.
260 $c1971
520 $aMineralization of organic phosphorus was studied in three volcanic soils of Costa Rica. The results indicated that for Juray (Alluvial) and Birrisito (vitrandept) mineralization was observed measured by an increase in inorganic P, after 10 months incubation. For Colorado series (distropets) imobilization occured. For the first 3 months of incubation inmobilization was observed for all soils. When inorganic P was fractionated the results show no relationship with mineralizartion, it rather shows variability of the Al-P, Fe-P and Ca-P during the incubation period. Lime application did not show any definite pattern. There was no effect for Colorado soil, but decreased and increased organic-P for Birrisito and Juray respectively. When temperature was compared there was no difference between room temperature (23oC) and 35oC. Phosphate application increased inorganic fractions of P, and increased organic P for Colorado soil. Mineralization seems to have occured for soils high in total P and high in organic P. - The authors.
650 $aacid soils
650 $aCosta Rica
650 $atropical soils
650 $aAcidez
650 $aSolo Ácido
653 $aRegiao tropical
653 $aTorride zone
700 1 $aFUENTES, R.
700 1 $aBORNEMISZA, E.
773 $tTurrialba$gv.21, n.1, p.47-52, 1971.
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Registro original: |
Embrapa Soja (CNPSO) |
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Origem |
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Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura; Embrapa Unidades Centrais. |
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Data corrente: |
28/09/2009 |
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Data da última atualização: |
11/02/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA, A. J. P. da; COELHO, E. F.; MIRANDA, J. H. de; WORKMAN, S. R. |
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Afiliação: |
Alisson Jadavi Pereira da Silva, USP; EUGENIO FERREIRA COELHO, CNPMF; Jarbas Honorio de Miranda, USP; Stephen Ray Workman, BAE. |
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Título: |
Estimating water application efficiency for drip irrigation emitter patterns on banana. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 7, p. 730-737, jul. 2009. |
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ISSN: |
0100-204X |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate root and water distribution in irrigated banana (Musa sp.), in order to determine the water application efficiency for different drip irrigation emitter patterns. Three drip emitter patterns were studied: two 4-L h-¹ emitters per plant (T1), four 4-L h-¹ emitters per plant (T2), and five 4-L h-¹ emitters per plant (T3). The emitters were placed in a lateral line. In the treatment T3, the emitters formed a continuous strip. The cultivated area used was planted with banana cultivar BRS Tropical, with a 3-m spacing between rows and a 2.5-m spacing between plants. Soil moisture and root length data were collected during the first production cycle at five radial distances and depths, in a 0.20x0.20 m vertical grid. The experiment was carried out in a sandy clay loam Xanthic Hapludox. Soil moisture data were collected every 10 min for a period of five days using TDR probes. Water application efficiency was of 83, 88 and 92% for the systems with two, four and five emitters per plant, respectively. It was verified that an increase in the number of emitters in the lateral line promoted better root distribution, higher water extraction, and less deep percolation losses. |
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Palavras-Chave: |
Bananeira; Distribuição radicular; Eficácia na utilização da água; Musa spp; Processo radicular; Processos radiculares; Root distribution; Rootzone processe; Rootzone processes; Sistemas de gotejamento; TDR. |
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Thesagro: |
Água; Irrigação; Irrigação por Gotejamento. |
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Thesaurus NAL: |
Water use efficiency. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE-2010/46954/1/44n07a13.pdf
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Marc: |
LEADER 02256naa a2200349 a 4500
001 1656499
005 2010-02-11
008 2009 bl uuuu u00u1 u #d
022 $a0100-204X
100 1 $aSILVA, A. J. P. da
245 $aEstimating water application efficiency for drip irrigation emitter patterns on banana.
260 $c2009
520 $aThe objective of this work was to evaluate root and water distribution in irrigated banana (Musa sp.), in order to determine the water application efficiency for different drip irrigation emitter patterns. Three drip emitter patterns were studied: two 4-L h-¹ emitters per plant (T1), four 4-L h-¹ emitters per plant (T2), and five 4-L h-¹ emitters per plant (T3). The emitters were placed in a lateral line. In the treatment T3, the emitters formed a continuous strip. The cultivated area used was planted with banana cultivar BRS Tropical, with a 3-m spacing between rows and a 2.5-m spacing between plants. Soil moisture and root length data were collected during the first production cycle at five radial distances and depths, in a 0.20x0.20 m vertical grid. The experiment was carried out in a sandy clay loam Xanthic Hapludox. Soil moisture data were collected every 10 min for a period of five days using TDR probes. Water application efficiency was of 83, 88 and 92% for the systems with two, four and five emitters per plant, respectively. It was verified that an increase in the number of emitters in the lateral line promoted better root distribution, higher water extraction, and less deep percolation losses.
650 $aWater use efficiency
650 $aÁgua
650 $aIrrigação
650 $aIrrigação por Gotejamento
653 $aBananeira
653 $aDistribuição radicular
653 $aEficácia na utilização da água
653 $aMusa spp
653 $aProcesso radicular
653 $aProcessos radiculares
653 $aRoot distribution
653 $aRootzone processe
653 $aRootzone processes
653 $aSistemas de gotejamento
653 $aTDR
700 1 $aCOELHO, E. F.
700 1 $aMIRANDA, J. H. de
700 1 $aWORKMAN, S. R.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 44, n. 7, p. 730-737, jul. 2009.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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