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Biblioteca(s):  Embrapa Agrobiologia.
Data corrente:  24/05/2004
Data da última atualização:  24/05/2004
Autoria:  CANELLAS, L. P.; ESPINDOLA, J. A. A.; REZENDE, C. E.; CAMARGO, P. B. de; ZANDONADI, D. B.; RUMJANEK, V. M.; GUERRA, J. G. M.; TEIXEIRA, M. G.; BRAZ-FILHO, R.
Título:  Organic matter quality in a soil cultivated with perennial herbaceous legumes.
Ano de publicação:  2004
Fonte/Imprenta:  Scientia Agricola, Piracicaba, v. 61, n. 1, p. 53-61, jan./fev. 2004.
Idioma:  Inglês
Notas:  Qualidade da matéria orgânica de um solo cultivado com leguminosas herbáceas perenes.
Conteúdo:  Using herbaceous legumes in agricultural systems yields great quantities of plant residues, allowing changes in soil organic matter quality and content over the years. This study was conducted on an Ultisol, at Seropédica, RJ, Brazil, to evaluate the effects of different perennial herbaceous legumes on soil organic matter quality. A factorial scheme with three replications was used to evaluate the species: forage groundnut cv. BR-14951 (Arachis pintoi), tropical kudzu (Pueraria phaseoloides), and siratro (Macroptillum atropurpureum). After the first cut, each plot was divided into two subplots; plants were cut and left on the soil surface or cut and removed. Soil samples of a closed area covered by spontaneous vegetation (mainly C3 plants) or by Panicum maximum were also analyzed. Samples were collected from two layers (0-5 and 5-10 cm.), processed for the fractionation of organic matter and the evaluation of structural characteristics of humic acids (HA). Evaluated legumes did not change total organic carbon content, but promoted HA accumulation in the superficial soil layer. Humic acids may be used as indicators of the management effects on soil organic fractions, because there was significant incorporation of carbon and nitrogen derived from the legume residues, even for the short experimentation time (28 months). Residue management did not modify quantitative aspects of the distribution of the humified organic matter, but promoted, however, a higher condesation degree of... Mostrar Tudo
Palavras-Chave:  Forage groundnut; Quality; Tropical kudzu.
Thesagro:  Amendoim; Capim Colonião; Gramínea Forrageira; Kudzu; Leguminosa; Macroptilium Atropurpureum; Matéria Orgânica; Panicum Maximum; Pueraria Phaseoloides; Qualidade; Siratro; Solo.
Thesaurus Nal:  Arachis pintoi; forage grasses; legumes; organic matter; soil.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Agrobiologia (CNPAB)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPAB29947 - 1UMTSP - --22718
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Biblioteca(s):  Embrapa Semiárido.
Data corrente:  09/03/1995
Data da última atualização:  24/01/2017
Tipo da produção científica:  Artigo em Anais de Congresso
Autoria:  LEAO, P. C. de S.
Afiliação:  PATRICIA COELHO DE SOUZA LEAO, CPATSA.
Título:  El uso de portainjertos en la viticultura tropical de Semiárido brasileno.
Ano de publicação:  2015
Fonte/Imprenta:  In: SIMPOSIUM INTERNACIONAL DE VID, 2., 2015, Hermosillo, México. Memória técnica... Hermosillo: Associacion Agricola Local de Productores de Uva de Mesa, Frutas y Hortalizas: INIFAP, 2015.
Páginas:  p. 125-138.
Idioma:  Espanhol
Conteúdo:  The practice of grafting in the global viticulture began from the late nineteenth century, when the accidental introduction and infection of European vineyards bya natural insect from the Mississippi region in the United States. knownas phylloxera (Daktulosphaira vitifolil), which forced the use of American resistant wild species (Vitis ripens, vitis rupestris, etc.) as rootstocks. Therefore, resistance to phylloxera was the primary criterion for selection of rootstocks for grapevine. Soon after planting the first rootstocks, other problems arose, such as ferric chlorosis induced by excess of calcium present in many calcareous soils of Europe. This led to new breeding programs researches, especially in Europe. aiming to produce chlorosis resistant rootstocks, which was achieved by performing crosses with American species resistant to chlorosis, as Vitis berlandieri. Thus, wild species of American vines formed the genetic basis of most rootstocks used today worldwide. Those rootstocks developed were adapted to specific soil conditions and aimed to solve the existing problems in each viticulture region. Reynolds and Wardle (2001) outlined seven rnain criteria for choosing rootstocks in order of ímportance as phylloxera resistance, nematode resistance, adaptability to high pH soils, adaptability to saline soils, adaptability to soils with low pH, adaptability to waterlogged or poorly drained soils and adaptability to drought. Numerous studies have also shown that rootstocks aff... Mostrar Tudo
Palavras-Chave:  Cultivo; Semiárido.
Thesagro:  Porta Enxerto; Uva; Viticultura; Vitis Vinifera.
Thesaurus NAL:  Grapes.
Categoria do assunto:  F Plantas e Produtos de Origem Vegetal
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153860/1/Patricia-2015.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Semiárido (CPATSA)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CPATSA19496 - 1UPCAA - CD975i
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