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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Mandioca e Fruticultura. |
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Data corrente: |
27/06/1995 |
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Data da última atualização: |
27/06/1995 |
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Autoria: |
BALTRUSCHAT, H.; DEHNE, H. W. |
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Título: |
The occurrence of vesicular-arbuscular mycorrhiza in agro-ecosystems. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Plant Soil, v. 107, n. 2, p. 279-284, 1988. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
In a long-lasting field experiment at the Research Station Hanninghof at Dulmen (Westphalia), laid out in 1971, the inoculum potential (IP) of vesicular-arbuscular mycorrhizal (VAM) fungi of soil from winter wheat in a continuous monoculture (CM) and in a four-years cereal crop rotation (CR, winter wheat, winter barley, winter rye, oats) was investigated from 1980 to 1982. The influence of green manure and two levels of nitrogen fertilization (100 and 200 kg ha-1) on VAM-IP was also assessed. It turned out that VAM is frequent also in intensively cultivated soils, but varies this with the crop rotation system and form and intensity of fertilization. Compared to CR the VAM-IP was significantly reduced in CM. A cumulation of this effect, with a particularly str ong decrease of VAM-IP was significantly reduced in CM. A cumulation of this effect, with a particularly strong decrease of VAM occurred when other factors unfavourable for the symbiosis coincided in CM. Among these factors were the use of non-mycorrhizal Raphanus sativus and Brassica napus for green manure together with a N-fertilization of 200 kg ha-1. On the other hand green manure and the higher N-fertilization resulted in less disturbance of the VAM-IP in the CR. A correlation between VAM-IP in the soil and of wheat yields could neither be observed in the CR nor in the CM. |
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Palavras-Chave: |
Agricultural practices; Agro-ecosystems; Continuous monoculture; Green manure; Micorriza/va; N- fertilization; VA mycorrhiza. |
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Thesagro: |
Adubação Verde; Nitrogênio; Rotação de Cultura; Trigo. |
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Thesaurus Nal: |
crop rotation; winter wheat. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02154naa a2200289 a 4500
001 1607927
005 1995-06-27
008 1988 bl uuuu u00u1 u #d
100 1 $aBALTRUSCHAT, H.
245 $aThe occurrence of vesicular-arbuscular mycorrhiza in agro-ecosystems.$h[electronic resource]
260 $c1988
520 $aIn a long-lasting field experiment at the Research Station Hanninghof at Dulmen (Westphalia), laid out in 1971, the inoculum potential (IP) of vesicular-arbuscular mycorrhizal (VAM) fungi of soil from winter wheat in a continuous monoculture (CM) and in a four-years cereal crop rotation (CR, winter wheat, winter barley, winter rye, oats) was investigated from 1980 to 1982. The influence of green manure and two levels of nitrogen fertilization (100 and 200 kg ha-1) on VAM-IP was also assessed. It turned out that VAM is frequent also in intensively cultivated soils, but varies this with the crop rotation system and form and intensity of fertilization. Compared to CR the VAM-IP was significantly reduced in CM. A cumulation of this effect, with a particularly str ong decrease of VAM-IP was significantly reduced in CM. A cumulation of this effect, with a particularly strong decrease of VAM occurred when other factors unfavourable for the symbiosis coincided in CM. Among these factors were the use of non-mycorrhizal Raphanus sativus and Brassica napus for green manure together with a N-fertilization of 200 kg ha-1. On the other hand green manure and the higher N-fertilization resulted in less disturbance of the VAM-IP in the CR. A correlation between VAM-IP in the soil and of wheat yields could neither be observed in the CR nor in the CM.
650 $acrop rotation
650 $awinter wheat
650 $aAdubação Verde
650 $aNitrogênio
650 $aRotação de Cultura
650 $aTrigo
653 $aAgricultural practices
653 $aAgro-ecosystems
653 $aContinuous monoculture
653 $aGreen manure
653 $aMicorriza/va
653 $aN- fertilization
653 $aVA mycorrhiza
700 1 $aDEHNE, H. W.
773 $tPlant Soil$gv. 107, n. 2, p. 279-284, 1988.
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Embrapa Agrobiologia (CNPAB) |
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| 1. |  | AUAD, A. M.; BUENO, V. H. P.; MATOS, J. W. de; FOUREAUX, L. M. V. Ocorrência e flutuação populacional de Brachycaudus Schwartzi em pessegueiro, no Município de Jacuí, MG. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 2, p. 115-122, fev. 1998 Título em inglês: Occurrence and population fluctuation of Brachycaudus Schwartzi on peacu tree, in the city of Jacuí, MG.| Biblioteca(s): Embrapa Unidades Centrais. |
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