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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
10/05/2023 |
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Autoria: |
MENDOZA, R. E.; COGLIATTI, D. H.; COLLANTES, M. B.; KADE, M. |
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Título: |
Efecto de la fertilización nitrógeno-fosfatada sobre el crecimiento otoño-invernal y la absorción de fósforo en tepes de un pastizal natural. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Turrialba, v. 33, n. 3, p. 311-320, 1983. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The effect of fertilization with triple superphosphate and ammonium sulfate on the botanical composition and thy matter production in pods of a pasture of naturalized species was studied during an autum-winter period. The fertilizer-P was labelled with 32 P in an attempt to determine cause affect relationships between fertilizer-P recovery and changes in botanical composition. Blocks of soil having undisturbed plant cover were excavated and kept at field capacity in wooden boxes, they were fertilized with 0, 90, 180 or 360 kg N/ha and 0, 45 or 90 kg P2 O5 /ha in a factorial design. The boxes were harvested at 56, 92 and 134 days after the fertilization, and plant cover was divided in five fractions: Gaudinia fragilis-Lolium multiflorum, Paspalum dilatatum-Stenotaphrum secundatum, legumes, forbs and graminoids. The fertilization with both nutrients increased the proportion of Gaudinia-Lohum and decreased that of the other fractions. Thy matter accumulation was increased thrice by both fertilizers applied together, but each one did not have any effect by itself The recovery of 32P was greatest from the Gaudinia-Lolium fraction with respect of the others but, in fact, it did not explain the predominance of the Gaudinia-Lolium fraction as a result of P-fertilization. |
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Palavras-Chave: |
Adubacao mineral; Natural pasture. |
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Thesagro: |
Pastagem. |
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Thesaurus Nal: |
Absorption; Ammonium sulfate; Pastures; Plant growth; Superphosphate. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02054naa a2200253 a 4500
001 1520596
005 2023-05-10
008 1983 bl uuuu u00u1 u #d
100 1 $aMENDOZA, R. E.
245 $aEfecto de la fertilización nitrógeno-fosfatada sobre el crecimiento otoño-invernal y la absorción de fósforo en tepes de un pastizal natural.$h[electronic resource]
260 $c1983
520 $aAbstract: The effect of fertilization with triple superphosphate and ammonium sulfate on the botanical composition and thy matter production in pods of a pasture of naturalized species was studied during an autum-winter period. The fertilizer-P was labelled with 32 P in an attempt to determine cause affect relationships between fertilizer-P recovery and changes in botanical composition. Blocks of soil having undisturbed plant cover were excavated and kept at field capacity in wooden boxes, they were fertilized with 0, 90, 180 or 360 kg N/ha and 0, 45 or 90 kg P2 O5 /ha in a factorial design. The boxes were harvested at 56, 92 and 134 days after the fertilization, and plant cover was divided in five fractions: Gaudinia fragilis-Lolium multiflorum, Paspalum dilatatum-Stenotaphrum secundatum, legumes, forbs and graminoids. The fertilization with both nutrients increased the proportion of Gaudinia-Lohum and decreased that of the other fractions. Thy matter accumulation was increased thrice by both fertilizers applied together, but each one did not have any effect by itself The recovery of 32P was greatest from the Gaudinia-Lolium fraction with respect of the others but, in fact, it did not explain the predominance of the Gaudinia-Lolium fraction as a result of P-fertilization.
650 $aAbsorption
650 $aAmmonium sulfate
650 $aPastures
650 $aPlant growth
650 $aSuperphosphate
650 $aPastagem
653 $aAdubacao mineral
653 $aNatural pasture
700 1 $aCOGLIATTI, D. H.
700 1 $aCOLLANTES, M. B.
700 1 $aKADE, M.
773 $tTurrialba$gv. 33, n. 3, p. 311-320, 1983.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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