Buscar
Mostrando ítems 71-80 de 4408
Simple procedure for nutrient analysis of coffee plant with energy dispersive X-ray fluorescence spectrometry (EDXRF)
(2013-07-01)
Nutrient analysis is used to estimate nutrient content of crop plants to manage fertilizer application for sustained crop production. Direct solid analysis of agricultural and environmental samples by energy dispersive ...
Simple procedure for nutrient analysis of coffee plant with energy dispersive X-ray fluorescence spectrometry (EDXRF)
(2013-07-01)
Nutrient analysis is used to estimate nutrient content of crop plants to manage fertilizer application for sustained crop production. Direct solid analysis of agricultural and environmental samples by energy dispersive ...
Enzimas exógenas no desempenho e na digestibilidade ileal de nutrientes em frangos de corte
(Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA), 2008-06-01)
O objetivo deste trabalho foi avaliar o efeito da combinação de fitase e do complexo amilase, protease e xilanase, em dietas de milho e soja, formuladas com redução e sem redução dos níveis de energia, cálcio e fósforo ...
A fast ultrasound-assisted extraction of Ca, Mg, Mn and Zn from vegetables
(2001)
A fast and accurate method for the extraction of Ca, Mg, Mn and Zn from vegetables is proposed. Ultrasonic energy and dilute acid are used for the extraction. Optimisation conditions for the ultrasonic bath were established: ...
Fatores reguladores da decomposição foliar: uma abordagem sobre fragmentadores e decompositores
(Universidade Federal de Santa MariaBrasilCiências BiológicasUFSMPrograma de Pós-Graduação em Biodiversidade AnimalCentro de Ciências Naturais e Exatas, 2017-02-21)
According to the River Continuum Concept, in small rivers, corresponding to ~ 80% of river basins, the main energy source for the trophic chain is the material produced in riparian zones, especially leaves. This material ...
MECHANISMS FOR NUTRIENT EFFECTS ON BRAIN DEVELOPMENT AND COGNITION
(S. KARGER, 2000)
Multiple studies over the past five decades have addressed the evaluation of the effects of malnutrition on central nervous system (CNS) development in experimental animals an dhumans, The resultas of these studies reveal ...
Bio-energy conversion cost: a new index to evaluate the bioeconomic eficiency
(2013)
This study evaluated a nonlinear programming excel workbook PPFR (http://www.fmva.unesp.br/ppfr) for determining the optimum nutrient density and maximize margins. Two experiments were conducted with 240 one-day-old female ...
Silicon via nutrient solution modulates deficient and sufficient manganese sugar and energy cane antioxidant systems
(2021-12-01)
Manganese (Mn) is highly demanded by Poaceae, and its deficiency induces physiological and biochemical responses in plants. Silicon (Si), which is beneficial to plants under various stress conditions, may also play an ...
Requerimientos nutricionales de cabras lecheras. I. Energía metabolizable
(Universidad de Costa Rica, 2007)
Sex effects on net protein and energy requirements for growth of Saanen goats
(Elsevier B.V., 2017-06-01)
Requirements for growth in the different sexes remain poorly quantified in goats. The objective of this study was to develop equations for estimating net protein (NPG) and net energy (NEG) for growth in Saanen goats of ...