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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
02/01/1996 |
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Data da última atualização: |
02/01/1996 |
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Autoria: |
ABBOUD, A. C. de S. |
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Título: |
Mobilization of phosphorus in organic and conventional farming systems in Southwestern Ontario. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Nova Scotia: Dalhousie University Halifax, Agosto, 1992. |
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Páginas: |
309p. |
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Série: |
Tese de Doutorado. |
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Idioma: |
Inglês |
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Notas: |
Tese de Doutorado. |
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Conteúdo: |
A study was conducted to examine the effects of 4 fertilizer treatments (compost, superphosphate, rock phosphate and control) on several variables related to P nutrition in barley. In 1988 the study was conducted on two organic (designated as 01 and 02) and one conventional farm (designated as C1). In 1989 the study was conducted on six farms: the same farms as above with the addition of one organic (designated as 03) and two conventional farms (designated as C2 and C3). In 1990, the study was conducted in the glasshouse, using soils from the six farms studied in 1989. Overall the farms provided a gradient of conditions ranging from long term organic to moderately intensive conventional. In 1988 the following variables were measured when barley reached the he ding stage: soil available P (sodium bicarbonate - P bicarbonate - and anionic resin.P res); soil exchangeable K, Ca, Mg and soil pH; VAM infection and root and soil P-ase activity. The following variables were measured at harvest: percentage of N, P, K, Ca, Mg in barley grain and straw, and grain, straw and weed biomass. In 1989 the variables measured were: soil P bicarb and soil P res (early stage); soil organic and inorganic fractions (heading stage); soil exchangeable K, Ca, Mg, and soil pH (heading stage); percentage of N, P, K, Ca and Mg in plants (early and heading stage); VAM infection (early stage); root and soil P-ase activity (early an heading stage); root length (heading stage) and grain, straw and weeds biomass at harvest. In 1990 the variables... MenosA study was conducted to examine the effects of 4 fertilizer treatments (compost, superphosphate, rock phosphate and control) on several variables related to P nutrition in barley. In 1988 the study was conducted on two organic (designated as 01 and 02) and one conventional farm (designated as C1). In 1989 the study was conducted on six farms: the same farms as above with the addition of one organic (designated as 03) and two conventional farms (designated as C2 and C3). In 1990, the study was conducted in the glasshouse, using soils from the six farms studied in 1989. Overall the farms provided a gradient of conditions ranging from long term organic to moderately intensive conventional. In 1988 the following variables were measured when barley reached the he ding stage: soil available P (sodium bicarbonate - P bicarbonate - and anionic resin.P res); soil exchangeable K, Ca, Mg and soil pH; VAM infection and root and soil P-ase activity. The following variables were measured at harvest: percentage of N, P, K, Ca, Mg in barley grain and straw, and grain, straw and weed biomass. In 1989 the variables measured were: soil P bicarb and soil P res (early stage); soil organic and inorganic fractions (heading stage); soil exchangeable K, Ca, Mg, and soil pH (heading stage); percentage of N, P, K, Ca and Mg in plants (early and heading stage); VAM infection (early stage); root and soil P-ase activity (early an heading stage); root length (heading stage) and grain, straw and weeds bio... Mostrar Tudo |
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Palavras-Chave: |
C; P; Plants. |
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Thesagro: |
Carbono; Fósforo; Infecção; Micorriza Vesicular Arbuscular; Planta; Raiz; Solo; Solo Ácido. |
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Thesaurus Nal: |
carbon; infection; phosphorus; roots; soil; soil pH; vesicular arbuscular mycorrhizae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02458nam a2200361 a 4500
001 1622245
005 1996-01-02
008 1992 bl uuuu m 00u1 u #d
100 1 $aABBOUD, A. C. de S.
245 $aMobilization of phosphorus in organic and conventional farming systems in Southwestern Ontario.
260 $aNova Scotia: Dalhousie University Halifax, Agosto$c1992
300 $a309p.
490 $aTese de Doutorado.
500 $aTese de Doutorado.
520 $aA study was conducted to examine the effects of 4 fertilizer treatments (compost, superphosphate, rock phosphate and control) on several variables related to P nutrition in barley. In 1988 the study was conducted on two organic (designated as 01 and 02) and one conventional farm (designated as C1). In 1989 the study was conducted on six farms: the same farms as above with the addition of one organic (designated as 03) and two conventional farms (designated as C2 and C3). In 1990, the study was conducted in the glasshouse, using soils from the six farms studied in 1989. Overall the farms provided a gradient of conditions ranging from long term organic to moderately intensive conventional. In 1988 the following variables were measured when barley reached the he ding stage: soil available P (sodium bicarbonate - P bicarbonate - and anionic resin.P res); soil exchangeable K, Ca, Mg and soil pH; VAM infection and root and soil P-ase activity. The following variables were measured at harvest: percentage of N, P, K, Ca, Mg in barley grain and straw, and grain, straw and weed biomass. In 1989 the variables measured were: soil P bicarb and soil P res (early stage); soil organic and inorganic fractions (heading stage); soil exchangeable K, Ca, Mg, and soil pH (heading stage); percentage of N, P, K, Ca and Mg in plants (early and heading stage); VAM infection (early stage); root and soil P-ase activity (early an heading stage); root length (heading stage) and grain, straw and weeds biomass at harvest. In 1990 the variables...
650 $acarbon
650 $ainfection
650 $aphosphorus
650 $aroots
650 $asoil
650 $asoil pH
650 $avesicular arbuscular mycorrhizae
650 $aCarbono
650 $aFósforo
650 $aInfecção
650 $aMicorriza Vesicular Arbuscular
650 $aPlanta
650 $aRaiz
650 $aSolo
650 $aSolo Ácido
653 $aC
653 $aP
653 $aPlants
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 43 | |
| 13. |  | SILVA, J. V. da; GASPAROTTO, L.; BLUM, L. E. B.; PINHO, D. B. Primeiro relato de Neoscytalidium dimidiatum causando cancro em pitaya no Brasil. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 53., 2023, Brasília, DF, 2023. Anais. Brasília, DF: Sociedade Brasileira de Fitopatologia, 2023. p. 528. Título em inglês: First report of Neoscytallidium dimidiatum causing stem canker on dragon fruit in Brazil.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| Registros recuperados : 43 | |
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