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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
26/07/1995 |
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Data da última atualização: |
26/07/1995 |
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Autoria: |
HODGSON, J.; TAYLER, J. C.; LONSDALE, C. R. |
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Título: |
The relationship between intensity of grazing and the herbage consumption and growth of calves. |
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Ano de publicação: |
1971 |
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Fonte/Imprenta: |
Journal of the British Grassland and Society, v.26, n.4, p.231-237, 1971. |
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Idioma: |
Inglês |
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Conteúdo: |
Experiments were conducted in 1967 and 1968 in which Hereford x Friesian (Experiment 1) and Fiesian (Experiment 2) steer calves born in April were turned out to graze at one weck or 3 months of age, respectively, and maintained at three stockling desities in the ratio 1:2:3 animals per unit area. The calves grazed paddocks of S23 perennial ryegrass in rotation, and were moved when the height of grazed stubble at the medium stocking density was reduced to 8 cm. The rate of liveweight gain and herbage intake per head declined as stocking rate increased. When the results of the two experiments were compared, the weight gain of the calves was more closely related to the weight of herbage residues than to the height of the grazed sward. The rate of liveweight gain was depressed when the amount of herbage left after grazing fell below 2000-2500 kg OM/ha (1800-2250 Ib/ac). |
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Palavras-Chave: |
Pasture; Perennial ryegrass. |
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Thesagro: |
Bezerro; Pastagem. |
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Thesaurus Nal: |
calves. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01461naa a2200205 a 4500
001 1784990
005 1995-07-26
008 1971 bl --- 0-- u #d
100 1 $aHODGSON, J.
245 $aThe relationship between intensity of grazing and the herbage consumption and growth of calves.
260 $c1971
520 $aExperiments were conducted in 1967 and 1968 in which Hereford x Friesian (Experiment 1) and Fiesian (Experiment 2) steer calves born in April were turned out to graze at one weck or 3 months of age, respectively, and maintained at three stockling desities in the ratio 1:2:3 animals per unit area. The calves grazed paddocks of S23 perennial ryegrass in rotation, and were moved when the height of grazed stubble at the medium stocking density was reduced to 8 cm. The rate of liveweight gain and herbage intake per head declined as stocking rate increased. When the results of the two experiments were compared, the weight gain of the calves was more closely related to the weight of herbage residues than to the height of the grazed sward. The rate of liveweight gain was depressed when the amount of herbage left after grazing fell below 2000-2500 kg OM/ha (1800-2250 Ib/ac).
650 $acalves
650 $aBezerro
650 $aPastagem
653 $aPasture
653 $aPerennial ryegrass
700 1 $aTAYLER, J. C.
700 1 $aLONSDALE, C. R.
773 $tJournal of the British Grassland and Society$gv.26, n.4, p.231-237, 1971.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Tipo/Formato |
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Registro |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
19/02/2019 |
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Data da última atualização: |
02/12/2019 |
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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: |
PEREIRA FILHO, A.; TEIXEIRA FILHO, J.; SALVIANO, A. M.; YURI, J. E.; GIONGO, V. |
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Afiliação: |
ANTONIO PEREIRA FILHO; JOSÉ TEIXEIRA FILHO; ALESSANDRA MONTEIRO SALVIANO, CPATSA; JONY EISHI YURI, CPATSA; VANDERLISE GIONGO, CPATSA. |
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Título: |
Nutrient cycling in multifunctional agroecosystems with the use of plant cocktail as cover crop and green manure in the semi-arid. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 14, n. 5, p. 241-251, 2019. |
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DOI: |
10.5897/AJAR2018.13600 |
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Idioma: |
Inglês |
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Conteúdo: |
Plant cocktails used as cover crop present a significant multifunctional resource compared to monoculture, which may increase functional diversity within crop rotation and is particularly effective for designing mixtures with characteristics that increase the multifunctionality and sustainability of the agroecosystem. The objective was to evaluate sustainable agroecosystems models that improve the efficiency of nutrient cycling for crops. The treatments were arranged in four blocks in a split-plot design with two soil management (tillage and no-till) systems and three cropping systems (2 plant cocktails [PCs] and 1 natural vegetation [NV]). C/N ratio, lignin content, dry biomass (DB) production and decomposition, nutrients accumulation and mineralization by PCs and NV were evaluated. Decomposition and release of nutrients were monitored by the litterbag-method. PCs had a DB production twice higher than NV, essential for the adoption of no-tillage systems. The order of nutrient release was K> N> Ca> P> Mg. PCs as cover crops and green manure, with or without predominance of legumes and use of a no-tillage system, could be a technological strategy in agroecosystems for nutrients cycling in semi-arid regions. |
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Palavras-Chave: |
Agroecossistema; Macronutrientes; Mistura de plantas; Taxa de mineralização. |
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Thesagro: |
Adubação Verde; Agricultura Sustentável; Decomposição; Manejo do Solo; Monocultura; Solo. |
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Thesaurus NAL: |
Green manures; Soil management; Sustainable agriculture. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02278naa a2200337 a 4500
001 2106230
005 2019-12-02
008 2019 bl uuuu u00u1 u #d
024 7 $a10.5897/AJAR2018.13600$2DOI
100 1 $aPEREIRA FILHO, A.
245 $aNutrient cycling in multifunctional agroecosystems with the use of plant cocktail as cover crop and green manure in the semi-arid.$h[electronic resource]
260 $c2019
520 $aPlant cocktails used as cover crop present a significant multifunctional resource compared to monoculture, which may increase functional diversity within crop rotation and is particularly effective for designing mixtures with characteristics that increase the multifunctionality and sustainability of the agroecosystem. The objective was to evaluate sustainable agroecosystems models that improve the efficiency of nutrient cycling for crops. The treatments were arranged in four blocks in a split-plot design with two soil management (tillage and no-till) systems and three cropping systems (2 plant cocktails [PCs] and 1 natural vegetation [NV]). C/N ratio, lignin content, dry biomass (DB) production and decomposition, nutrients accumulation and mineralization by PCs and NV were evaluated. Decomposition and release of nutrients were monitored by the litterbag-method. PCs had a DB production twice higher than NV, essential for the adoption of no-tillage systems. The order of nutrient release was K> N> Ca> P> Mg. PCs as cover crops and green manure, with or without predominance of legumes and use of a no-tillage system, could be a technological strategy in agroecosystems for nutrients cycling in semi-arid regions.
650 $aGreen manures
650 $aSoil management
650 $aSustainable agriculture
650 $aAdubação Verde
650 $aAgricultura Sustentável
650 $aDecomposição
650 $aManejo do Solo
650 $aMonocultura
650 $aSolo
653 $aAgroecossistema
653 $aMacronutrientes
653 $aMistura de plantas
653 $aTaxa de mineralização
700 1 $aTEIXEIRA FILHO, J.
700 1 $aSALVIANO, A. M.
700 1 $aYURI, J. E.
700 1 $aGIONGO, V.
773 $tAfrican Journal of Agricultural Research$gv. 14, n. 5, p. 241-251, 2019.
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Embrapa Semiárido (CPATSA) |
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