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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
28/07/1995 |
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Data da última atualização: |
28/07/1995 |
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Autoria: |
LOOMIS, R. S. |
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Título: |
Agricultural system: they are established by a combination of ecological, economic and cultural factor. The problem today is how the developing countries can promote high-yielding systems based on cereals. |
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Ano de publicação: |
1976 |
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Fonte/Imprenta: |
Scientific American, v.235, n.3, p.99-105, Sept. 1976. |
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Idioma: |
Inglês |
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Conteúdo: |
In the U.S. one speaks of the corn belt and the wheat belt, reflecting the role of those plants as the principal crop in certain areas. Agricultural systems in other parts of the world can be similarly characterized by their dominant crops. In every such area, however, other crops are grown too, sometimes in rather intricate association with the main crop. The agricultural pattern that has emerged in each areas is in part the result of ecological factors - a particular combination of climate and soil - and in part the result of economic and cultural factors in the society that grows the crops. |
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Palavras-Chave: |
Agricultural systems; Cultural factors; Economic; Fator cultural; Sistema. |
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Thesagro: |
Agricultura; Cereal; Ecologia; Economia. |
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Thesaurus Nal: |
ecology. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01358naa a2200241 a 4500
001 1785130
005 1995-07-28
008 1976 bl --- 0-- u #d
100 1 $aLOOMIS, R. S.
245 $aAgricultural system$bthey are established by a combination of ecological, economic and cultural factor. The problem today is how the developing countries can promote high-yielding systems based on cereals.
260 $c1976
520 $aIn the U.S. one speaks of the corn belt and the wheat belt, reflecting the role of those plants as the principal crop in certain areas. Agricultural systems in other parts of the world can be similarly characterized by their dominant crops. In every such area, however, other crops are grown too, sometimes in rather intricate association with the main crop. The agricultural pattern that has emerged in each areas is in part the result of ecological factors - a particular combination of climate and soil - and in part the result of economic and cultural factors in the society that grows the crops.
650 $aecology
650 $aAgricultura
650 $aCereal
650 $aEcologia
650 $aEconomia
653 $aAgricultural systems
653 $aCultural factors
653 $aEconomic
653 $aFator cultural
653 $aSistema
773 $tScientific American$gv.235, n.3, p.99-105, Sept. 1976.
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