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Biblioteca(s):  Embrapa Meio-Norte.
Data corrente:  18/07/2013
Data da última atualização:  30/05/2022
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  DIÓGENES, L. C.; NÓBREGA, J. C. A.; NÓBREGA, R. S. A.; ANDRADE JUNIOR, A. S. de; PRAGANA, R. B.; MATIAS, S. S. R.
Afiliação:  Larissa Castro Diógenes, UFPI; Júlio César Azevedo Nóbrega, UFPI; Rafaela Simão Abrahão Nóbrega, UFPI; ADERSON SOARES DE ANDRADE JUNIOR, CPAMN; Rossanna Barbosa Pragana, UFRPE; Sammy Sidney Rocha Matias, UFPI.
Título:  Microbial attributes and carbon and nitrogen stocks in Latosol under irrigated monocropping and intercropping.
Ano de publicação:  2013
Fonte/Imprenta:  Revista de Ciências Agrárias, Belém, PA, v. 56, n. 2, p. 106-111, abr./jun. 2013.
ISSN:  1517-591X
Idioma:  Inglês
Conteúdo:  Monocropping and intercropping maize and pasture irrigated areas in promoting changes in soil biological attributes, however, little is known about these changes in environments ecotone between Cerrado and Caatinga. The aim of the study was to evaluate microbial attributes and carbon and nitrogen stocks in distrophic yellow Latosol soil under monocropping of maize and brachiaria and intercropping of these cultures under two irrigation blades. The study was conducted in the Alvorada do Gurgéia city, Piauí State, Brazil, during the year of 2009, the treatments consisting of three production systems (monocropping of maize and brachiaria and intercropping between maize and brachiaria), under two irrigation blades (L1 = 647.9 e L2 = 564.5 mm) e two soil depths (0-0.10 and 0.10-0.20 m). The variables analyzed were microbial biomass, basal respiration, microbial quotient, metabolic quotient, the contents of total organic carbon, the nitrogen and carbon and nitrogen stocks. Biological attributes of the soil are influenced by monocropping and intercropping of maize and brachiaria, irrigation blades and soil depth. The blades of irrigation, by influencing the water content in the soil, have greater effect on the microbial attributes, may occur individually, as in the case of microbial carbon, or associated production systems of maize and brachiaria under intercropping or monocropping, as detected for of total organic carbon, microbial and metabolic quotient, nitrogen content and carbo... Mostrar Tudo
Palavras-Chave:  Estoque de carbono; Estoque de nitrogênio.
Thesagro:  Consorciação de cultura; Microbiologia do solo; Monocultura.
Categoria do assunto:  A Sistemas de Cultivo
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/86224/1/AmazonianJournalAderson.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Meio-Norte (CPAMN)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CPAMN29345 - 1UPCAP - PPSP130/132013.00130
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Biblioteca(s):  Embrapa Arroz e Feijão.
Data corrente:  18/12/2018
Data da última atualização:  18/12/2018
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  MESQUITA, M. A. M; SILVEIRA, P. M. da; LEANDRO, W. M.; FLORES, R. A.; MARANHÃO, D. D. C.
Afiliação:  MARCOS ANTÔNIO MACHADO MESQUITA, INSTITUTO FEDERAL DE PERNAMBUCO; PEDRO MARQUES DA SILVEIRA, CNPAF; WILSON MOZENA LEANDRO, UFG; RILNER ALVES FLORES, UFG; DEYVID DIEGO CARVALHO MARANHÃO, UFRRJ.
Título:  DRIS standards for nutritional evaluation of Phaseolus vulgaris in Cerrado, Goiás State, Brazil.
Ano de publicação:  2018
Fonte/Imprenta:  Australian Journal of Crop Science, v. 12, n. 2, p. 274-280, 2018.
Idioma:  Inglês
Conteúdo:  The knowledge of nutritional requirements of beans, the efficiency of soil acidity correction and the fertilization programs are essential to increase productivity. The Integrated Recommendation and Diagnosis System (DRIS) assists with nutritional diagnosis of cultivated plants based on existing interactions between nutrients and the hierarchizing of limitations. This study aimed at establishing standards using the DRIS method for areas of production of irrigated common beans and at determining the most limiting nutritional factors to production using leaf analyses interpreted by concentration ranges and DRIS. Eighteen different beanproducing areas were selected in a central pivot irrigation system, from which 82 sampling points were established to collect leaves of crop and determine their nutritional contents. The reference population had productivity of over 3,000 kg ha- 1. Using DRIS, we determined that phosphorus is the most limiting nutrient regarding its deficiency, with great sensitivity to diagnose nutritional problems of plants, especially micronutrients. Phosphorus (68.3%), molybdenum (65.9%), iron (64.6 %) and sodium (63.4%) and are nutrients with highest percentage of samples presenting levels below adequate according to sufficiency ranges for plants. Using DRIS, we can evaluate interactions among nutrients and determine of the magnitude of crop nutritional limitation whether due to deficiency or excess. These results may indicate which nutrients are limiting th... Mostrar Tudo
Palavras-Chave:  DRIS.
Thesagro:  Análise Foliar; Feijão; Nutrição Vegetal.
Thesaurus NAL:  Beans; Leaf area; Plant micronutrients.
Categoria do assunto:  F Plantas e Produtos de Origem Vegetal
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188771/1/35352.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Arroz e Feijão (CNPAF)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPAF35352 - 1UPCAP - DD20182018
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