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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/03/1999 |
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Data da última atualização: |
19/03/1999 |
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Autoria: |
BRITTON, C. M.; DODD, J. D.; WEICHERT, A. T. |
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Título: |
Net aerial primary production of an Andropogon-paspalum grassland ecosystem. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Journal of Range Management, v.31, n.5, p.381-386, Sept. 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
Changes in net aerial primary production as influenced by selected environmental parameters were evaluated in a grassland ecosystem for the 1973 and 1974 growing seasons. Biomass weight was estimated for phenologically determined harvest intervals. Efficiency of coverting solar energy to chemical energy was determined. Between years, precipitation was thr dominant environmental parameter associated with production. The quantity was not as critical as the date and the resultant effect on available soil water. Increments of production followed a monomodal pattern similar to yearly trends in soil temperature and solar radiation. Deviations in production from this monomodal pattern were related to available soil water and soil water deficit. Total production during 1973 (ca. 400 g m-2) was approximately 100 g m-2 higher than in 1974. This difference was due primarily to lower available soil water during early spring and a 4-week longer summer dry period in 1974. Based on measurements of photosynthetically active radiation, energy values, and production, the growing season conversion efficiencies were 0.34% in 1973 and 0.23% in 1974. The highest conversion efficiencies for a harvest interval occurred each year during June: 0.87% in 1973 and 0.59% in 1974. |
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Palavras-Chave: |
Andropogon-paspalum; Ecosystem; Pasture; Primary production; Producao primaria. |
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Thesagro: |
Ecossistema; Pastagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01901naa a2200229 a 4500
001 1794495
005 1999-03-19
008 1978 bl --- 0-- u #d
100 1 $aBRITTON, C. M.
245 $aNet aerial primary production of an Andropogon-paspalum grassland ecosystem.
260 $c1978
520 $aChanges in net aerial primary production as influenced by selected environmental parameters were evaluated in a grassland ecosystem for the 1973 and 1974 growing seasons. Biomass weight was estimated for phenologically determined harvest intervals. Efficiency of coverting solar energy to chemical energy was determined. Between years, precipitation was thr dominant environmental parameter associated with production. The quantity was not as critical as the date and the resultant effect on available soil water. Increments of production followed a monomodal pattern similar to yearly trends in soil temperature and solar radiation. Deviations in production from this monomodal pattern were related to available soil water and soil water deficit. Total production during 1973 (ca. 400 g m-2) was approximately 100 g m-2 higher than in 1974. This difference was due primarily to lower available soil water during early spring and a 4-week longer summer dry period in 1974. Based on measurements of photosynthetically active radiation, energy values, and production, the growing season conversion efficiencies were 0.34% in 1973 and 0.23% in 1974. The highest conversion efficiencies for a harvest interval occurred each year during June: 0.87% in 1973 and 0.59% in 1974.
650 $aEcossistema
650 $aPastagem
653 $aAndropogon-paspalum
653 $aEcosystem
653 $aPasture
653 $aPrimary production
653 $aProducao primaria
700 1 $aDODD, J. D.
700 1 $aWEICHERT, A. T.
773 $tJournal of Range Management$gv.31, n.5, p.381-386, Sept. 1978.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
28/07/2023 |
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Data da última atualização: |
12/08/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LOPES, E. A.; MAGALHAES, J. A.; RODRIGUES, B. H. N.; ARAUJO NETO, R. B. de. |
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Afiliação: |
EXPEDITO AGUIAR LOPES, CPAMN; JOAO AVELAR MAGALHAES, CPAMN; BRAZ HENRIQUE NUNES RODRIGUES, CPAMN; RAIMUNDO BEZERRA DE ARAUJO NETO, CPAMN. |
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Título: |
Teste de um sistema de produção de leite com gado mestiço nos Tabuleiros Costeiros do Meio-Norte. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE VETERINARIA, 27; CONGRESSO PAULISTA DE VETERINÁRIA, 5; CONFERÊNCIA ANUAL DA SOCIEDADE PAULISTA DE MEDICINA VETERINÁRIA, 55., 2000, Águas de Lindóia, SP. As maiores novidades do mundo animal: resumo dos trabalhos. Águas de Lindóia: SBMV/SPMV, 2000. n. 84, p. 31. |
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Idioma: |
Português |
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Notas: |
XXVII CONBRAVET; V CONPAVET; VI EXPOVET. |
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Palavras-Chave: |
Meio-Norte. |
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Thesagro: |
Bovinocultura. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/254283/1/TesteSistema-33841.pdf
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Marc: |
LEADER 00831nam a2200169 a 4500
001 2155394
005 2023-08-12
008 2000 bl uuuu u00u1 u #d
100 1 $aLOPES, E. A.
245 $aTeste de um sistema de produção de leite com gado mestiço nos Tabuleiros Costeiros do Meio-Norte.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE VETERINARIA, 27; CONGRESSO PAULISTA DE VETERINÁRIA, 5; CONFERÊNCIA ANUAL DA SOCIEDADE PAULISTA DE MEDICINA VETERINÁRIA, 55., 2000, Águas de Lindóia, SP. As maiores novidades do mundo animal: resumo dos trabalhos. Águas de Lindóia: SBMV/SPMV, 2000. n. 84, p. 31.$c2000
500 $aXXVII CONBRAVET; V CONPAVET; VI EXPOVET.
650 $aBovinocultura
653 $aMeio-Norte
700 1 $aMAGALHAES, J. A.
700 1 $aRODRIGUES, B. H. N.
700 1 $aARAUJO NETO, R. B. de
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Embrapa Meio-Norte (CPAMN) |
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