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Ograniczeniem w wykorzystaniu niektórych nawozów naturalnych do celów nawozowych może być zmienność ich składu chemicznego, a tym samym często niezbilansowana zawartość składników pokarmowych dla roślin. Celem przeprowadzonych badań było oznaczenie zawartości wapnia, sodu, siarki, miedzi i manganu ogółem oraz rozmieszczenie miedzi i manganu we frakcjach wydzielonych według procedury BCR w wybranych...
Celem pracy była ocena zawartości wybranych pierwiastków (Ca, Mg, Cu, Fe, Mn i Zn) w różnych rodzajach czekolad. Analizie poddano 20 czekolad, w tym: białe (B), mleczne (M) i gorzkie (G) o różnej zawartości masy kakaowej. Pogrupowano je według zawartości suchej masy kakaowej następująco [%]: G6 – 60, G7 – 70, G8 – do 85, G9 – 90. Suchą masę w próbkach oznaczono metodą suszarkowo-wagową. Oznaczenie...
The paper presents the analysis of the macro− and microelements content in the leaves, stems and roots of Vaccinium myrtillus and Vaccinium vitis−idaea as well as in the surface genetic horizons of the soils of the Słowiński National Park (SNP). The cumulative properties and translocation coefficients were characterized as well as translocation coefficients of nutritional components in bilberry sprouts...
The study concerned the determination of the influence of various manufactured mineral-plant additives, based on humic and calcium raw materials and dried herbs, lucerne and glycerol, on the content of Ca, P, Mg, K, Na, Cl and Cu, Fe, Zn in the blood serum of Lohmann Brown (LB) laying hens housed in a deep litter system. Five groups (20 hens in each) were formed, and they were fed using a standard...
The aim of this study was to analyse the concentrations of selected elements, such as copper (Cu), manganese (Mn), calcium (Ca), magnesium (Mg), iron (Fe) and zinc (Zn), in the hair of cattle from farms in areas with varying degrees of environmental contamination. The studies were performed on 116 Holstein-Friesian heifers, two years old and weighing around 550 kg. Animals originated from three breeding...
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