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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Pantanal. |
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Data corrente: |
27/09/1995 |
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Data da última atualização: |
31/10/2013 |
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Autoria: |
HUTTON, E. M. |
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Título: |
Tropical pastures. |
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Ano de publicação: |
1970 |
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Fonte/Imprenta: |
Adv. Agron. v.22, p.1-73, 1970. |
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Idioma: |
Inglês |
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Conteúdo: |
In the last decade tropical pasture research has culminated in the provision of persistent and productive legumes and grasses for use in pastures throughout the tropics. It has shown that, with proper fertilization and management of these cultivars, the tropics can produce considerably more beef and milk than at present. Although nitrogen fertilization of high quality grasses like pangola and kikuyu leads to high stocking rates and high production, the costs involved in this system are high, so it will be used only in special situations. Legume-based pasture will be the main system used in development of the extensive unused areas of the tropics for beef cattle as it is capable of markedly increasing production at relatively low cost. The studies on the interrelationships between legume, rhizobium, plant nutrients, and soil type have made it possible to succesfully establish legumes in pastures in most tropical areas. The finding that the majority of tropical legumes and their assoicated rhizobia are adapted to acid soils is of special significance in tropical development. Determination of critical percentages of the major elements sufficient for maximum growth of the different legumes has given a sound basis for fertilization of tropical pasture. Characterization of the associate grasses in this respect has commenced but requires much more attention if a proper understanding of the mineral balance in tropical pastures is to be obtained. One question which needs to be resolved is whether the mineral content of pasture giving maximum dry matter yield is at a sufficiently high level for maxinum animal production. More work is required on the physiological and biochemical characterization of the different species so that their deficiencies relative to pasture and animal production in various tropical environments can be determined. This will provide a better basis for plant introduction and breeding activities and for management studies aimed at maximizing yields of digestible nutrients and animal products from the pasture. A proportion of the physiological work needs to be done in the field so that it is possible to ascertain the factors involved in the persistence and compatibility of cultivars in grazed pastures. Determination of the biochemical and physiological bases for the relatively low feeding value of tropical grasses is an important problem. Until this is solved, it will be difficult to improve the efficiency of conversion of tropical pasture into animal products. Future progress in tropical pasture research is dependent on maintaining the ecosystem approach, in which the interactions between soil, pasture, and animal are intensively studied in pastures in different environments. Use of modern computer techniques are essential to fully assess these interactions and devise methods for improving output from tropical pastures. MenosIn the last decade tropical pasture research has culminated in the provision of persistent and productive legumes and grasses for use in pastures throughout the tropics. It has shown that, with proper fertilization and management of these cultivars, the tropics can produce considerably more beef and milk than at present. Although nitrogen fertilization of high quality grasses like pangola and kikuyu leads to high stocking rates and high production, the costs involved in this system are high, so it will be used only in special situations. Legume-based pasture will be the main system used in development of the extensive unused areas of the tropics for beef cattle as it is capable of markedly increasing production at relatively low cost. The studies on the interrelationships between legume, rhizobium, plant nutrients, and soil type have made it possible to succesfully establish legumes in pastures in most tropical areas. The finding that the majority of tropical legumes and their assoicated rhizobia are adapted to acid soils is of special significance in tropical development. Determination of critical percentages of the major elements sufficient for maximum growth of the different legumes has given a sound basis for fertilization of tropical pasture. Characterization of the associate grasses in this respect has commenced but requires much more attention if a proper understanding of the mineral balance in tropical pastures is to be obtained. One question which needs to be res... Mostrar Tudo |
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Palavras-Chave: |
Pastagem tropical. |
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Thesaurus Nal: |
tropical pastures. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03228naa a2200145 a 4500
001 1970086
005 2013-10-31
008 1970 bl --- 0-- u #d
100 1 $aHUTTON, E. M.
245 $aTropical pastures.
260 $c1970
520 $aIn the last decade tropical pasture research has culminated in the provision of persistent and productive legumes and grasses for use in pastures throughout the tropics. It has shown that, with proper fertilization and management of these cultivars, the tropics can produce considerably more beef and milk than at present. Although nitrogen fertilization of high quality grasses like pangola and kikuyu leads to high stocking rates and high production, the costs involved in this system are high, so it will be used only in special situations. Legume-based pasture will be the main system used in development of the extensive unused areas of the tropics for beef cattle as it is capable of markedly increasing production at relatively low cost. The studies on the interrelationships between legume, rhizobium, plant nutrients, and soil type have made it possible to succesfully establish legumes in pastures in most tropical areas. The finding that the majority of tropical legumes and their assoicated rhizobia are adapted to acid soils is of special significance in tropical development. Determination of critical percentages of the major elements sufficient for maximum growth of the different legumes has given a sound basis for fertilization of tropical pasture. Characterization of the associate grasses in this respect has commenced but requires much more attention if a proper understanding of the mineral balance in tropical pastures is to be obtained. One question which needs to be resolved is whether the mineral content of pasture giving maximum dry matter yield is at a sufficiently high level for maxinum animal production. More work is required on the physiological and biochemical characterization of the different species so that their deficiencies relative to pasture and animal production in various tropical environments can be determined. This will provide a better basis for plant introduction and breeding activities and for management studies aimed at maximizing yields of digestible nutrients and animal products from the pasture. A proportion of the physiological work needs to be done in the field so that it is possible to ascertain the factors involved in the persistence and compatibility of cultivars in grazed pastures. Determination of the biochemical and physiological bases for the relatively low feeding value of tropical grasses is an important problem. Until this is solved, it will be difficult to improve the efficiency of conversion of tropical pasture into animal products. Future progress in tropical pasture research is dependent on maintaining the ecosystem approach, in which the interactions between soil, pasture, and animal are intensively studied in pastures in different environments. Use of modern computer techniques are essential to fully assess these interactions and devise methods for improving output from tropical pastures.
650 $atropical pastures
653 $aPastagem tropical
773 $tAdv. Agron.$gv.22, p.1-73, 1970.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
08/07/2019 |
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Data da última atualização: |
11/05/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
ASCHERI, J. L. R.; BAZÁN COLQUE, R. J.; SOUSA, L. B. T. de; ASCHERI, D. P. R.; SILVA, E. M. M. da. |
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Afiliação: |
JOSE LUIS RAMIREZ ASCHERI, CTAA; Ronel Joel Bazan Colque, UFRRJ; Laysa Borges Tomas de Sousa, UFES; Diego Palmiro Ramirez Ascheri; Erika Madeira Moreira da Silva, UFES. |
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Título: |
How does Extrusion Technology Help the Development of Foods with Better Nutritional Value? |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Global Journal of Nutrition & Food Science, v. 1, n. 3, p. 1-2, 2019. |
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ISSN: |
2644-2981 |
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DOI: |
GJNFS.MS.ID.000511 |
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Idioma: |
Inglês |
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Notas: |
Mini review. |
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Palavras-Chave: |
Extrusion cooking; Nutrition values; Parameters processing; Products Development; Quality criteria. |
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Thesagro: |
Extrusão; Nutrição; Processamento; Tecnologia de Alimento. |
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Thesaurus NAL: |
Cooking; Extrusion; Food and Human Nutrition; Food processing; Food technology; Foods. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199271/1/Extrusion-technology-help-development-better-nutrition.pdf
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Marc: |
LEADER 01103naa a2200373 a 4500
001 2110456
005 2020-05-11
008 2019 bl uuuu u00u1 u #d
022 $a2644-2981
024 7 $aGJNFS.MS.ID.000511$2DOI
100 1 $aASCHERI, J. L. R.
245 $aHow does Extrusion Technology Help the Development of Foods with Better Nutritional Value?$h[electronic resource]
260 $c2019
500 $aMini review.
650 $aCooking
650 $aExtrusion
650 $aFood and Human Nutrition
650 $aFood processing
650 $aFood technology
650 $aFoods
650 $aExtrusão
650 $aNutrição
650 $aProcessamento
650 $aTecnologia de Alimento
653 $aExtrusion cooking
653 $aNutrition values
653 $aParameters processing
653 $aProducts Development
653 $aQuality criteria
700 1 $aBAZÁN COLQUE, R. J.
700 1 $aSOUSA, L. B. T. de
700 1 $aASCHERI, D. P. R.
700 1 $aSILVA, E. M. M. da
773 $tGlobal Journal of Nutrition & Food Science$gv. 1, n. 3, p. 1-2, 2019.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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