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Determinação de fósforo biodisponível em rações de peixes utilizando extração assistida por ultra-som e espectrofotometria no visível
(Sociedade Brasileira de Química, 2009)
The aim of the present work was to develop and optimize a method for determination of bioavailable phosphorus in samples of feces and fish feed using ultrasound extraction and subsequent quantification by visible ...
Organic acids to eliminate interference by phosphorus in the analysis of silicon by molecular absorption
(Universidad Nacional de Colombia - Sede Medellín - Facultad de Ciencias Agrarias, 2017-05-01)
One of the problems for quantifying the amount of silicon available by molecular absorption is the elimination of chemical interference caused by available phosphorus. The aim of this work was to evaluate different organic ...
Evaluation of Lines of Phosphorus and Potassium by High-Resolution Continuum Source Flame Atomic Absorption Spectrometry for Liquid Fertilizer Analysis
(Perkin-elmer Corp, 2011-03-01)
The usefulness of the side pixel registration approach and molecular absorption was investigated for the determination of phosphorus (P) and potassium (K) in liquid fertilizers by high-resolution continuum source flame ...
Biogenic calcium phosphate transformation in soils over millennial time scales
(SPRINGER HEIDELBERG, 2009)
Changes in bioavailability of phosphorus (P) during pedogenesis and ecosystem development have been shown for geogenic calcium phosphate (Ca-P). However, very little is known about long-term changes of biogenic Ca-P in ...
Molecular absorption spectrophotometric method for the determination of phosphorus in biodiesel
(Elsevier Sci LtdOxfordInglaterra, 2011)
Adsorção de fósforo em solos desenvolvidos sobre basaltos e riolitos
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de Ciências AgráriasAgronomiaUTFPR, 2019-06-24)
Phosphorus is one of the crucial elements for agriculture, since it is indispensable for the development of plants. Due to its scarce reserves and complex soil dynamics, it has been increasingly studied. The soils of the ...
Capacidade máxima de adsorção de fósforo em latossolos da região do triângulo mineiro
(Universidade Tecnológica Federal do ParanáLondrinaBrasilEngenharia ambientalUTFPR, 2019-12-06)
Phosphorus is essential for plant’s growth and healthy development, therefore the higher is its soil availability, the better it is for crops depending on increasing plant uptake. Adsorption retains phosphorus and makes ...
Phosphorus bioavailability in diets for growing horses
(Elsevier B.V., 2008-07-01)
A study of phosphorus (P) metabolism was carried out using 12 month old Brasileiro de Hipismo breed of horses to determine the P bioavailability available from feeds commonly fed to horses in Brazil. Five different diets ...
Phosphorus bioavailability in diets for growing horses
(Elsevier B.V., 2008-07-01)
A study of phosphorus (P) metabolism was carried out using 12 month old Brasileiro de Hipismo breed of horses to determine the P bioavailability available from feeds commonly fed to horses in Brazil. Five different diets ...