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| Antunes,Dalton Araujo; Louvandini,Helder; Silva Filho,José Cleto da; McManus,Concepta Margaret; Dallago,Bruno Steffano; Machado,Bruno de Oliveira; Mendonça,Dharana Guedes; Correa,Patrícia Spoto. |
| Este trabalho teve como objetivo avaliar a técnica de incorporação de 32P pelos eritrócitos de ovinos jovens, mantidos em pastejo de Andropogon gayanus, como método de diagnóstico da deficiência de fósforo. Vinte ovinos, com peso vivo inicial de 13,88±2,51 kg, foram divididos em dois tratamentos de dez animais cada; num dos tratamentos, os animais foram suplementados com 3 g de P por animal por dia e, no outro, os animais não receberam suplementação de P. Foram realizadas cinco pesagens dos animais, coletas de sangue e fezes nos 8º, 29º, 43º, 57º e 71º dias do experimento, para avaliar a incorporação de 32P pelos eritrócitos, determinar as concentrações de Ca, glicose e P no soro e a porcentagem de P nas fezes. Foi encontrada diferença significativa na... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Andropogon gayanus; Nutrição animal; Diluição isotópica; Santa Inês; Hemácias; Andropogon gayanus; Animal nutrition; Isotopic dilution; Hair sheep; Haemacytes. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000200020 |
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| Bernardi,Alberto C. de Campos; Monte,Marisa Bezerra de Mello; Paiva,Paulo Renato Perdigão; Werneck,Carlos Guarino; Haim,Patrick Gesualdi; Barros,Fernando de Souza. |
| Zeolites are hydrated crystalline aluminosilicate minerals of natural occurrence, structured in rigid third dimension net that can be used as slow release plant-nutrient source. The main objective of this study was to evaluate the effects of plant growth substrate under zeolite application, enriched with N, P and K, on dry matter yield and on nutrient contents in consecutive crops of lettuce, tomato, rice, and andropogon grass. The experiment was carried out in a greenhouse, with 3 kg pots with an inert substrate, evaluated in a randomized block design with three replications. Treatments consisted of four types of enrichment of concentrated natural zeolite: concentrated zeolite (Z) only, zeolite + KNO3 (ZNK), zeolite + K2HPO4 (ZPK) and zeolite + H3PO4 +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stilbite; Lactuca sativa; Lycopersicum esculentum; Oryza sativa; Andropogon gayanus; Slow-release fertilizer; Growth substrate. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000200017 |
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| Sousa,Braulio Maia de Lana; Nascimento Júnior,Domicio do; Silva,Sila Carneiro da; Monteiro,Hélida Christhine de Freitas; Rodrigues,Carlindo Santos; Fonseca,Dilermando Miranda da; Silveira,Márcia Cristina Teixeira da; Sbrissia,André Fischer. |
| This work was performed aiming to evaluate the morphogenetic and structural characteristics of Andropogon gayanus cv. Planaltina species submitted to three cutting heights (20, 27 and 34 cm). The three cutting heights were allocated in experimental units (12 m²) in a complete randomized block design with three replications. The cuts were done when the light interception by the sward reached 95%. At this moment, the sward height revealed itself constant with values close to 50 cm. The lowest cutting height (20 cm) influenced negatively the final leaf blade length, the number of live leaves, the leaf lifespan, the stem elongation rate and the tiller population density, and it influenced positively the phyllochron and the leaf senescence rate. Probably, cuts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Andropogon gayanus; Ecophysiology; Light interception; Morphogenesis; Sward height. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000006 |
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