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The effect of potassium fertilization on lithium and aluminium content in eastern galega (Galega orientalis Lam.) and in the soil

100%

Szymanowicz B. , Kalembasa S. , Krasucki S.

nr 4

Profile variability of lithium content in soils of selected forest ecosystems

84%

Malczyk P.

tom 50

The distribution of total lithium content with depth was studied in soils of selected forest ecosystems, with regard to their physicochemical properties and possible anthropogenic impact. The six soil profiles, representing forest soils, were selected for the study: Udipsamments formed from sandr sand, eolian sand and alluvial sand, and Haplorthods Humic formed from eolian sand, Dystrochrepts formed from alluvial silt and Eutrochrepts formed from boulder loam. The total Li content was determined after previously dissolving the samples in a mixture of concentrated acids: hydrofluoric and nitric (HF+HNO3). The content of Li in solutions was determined using the FAS method on PU-9100 X Philips spectrometer. The total lithium content in studied soils under investigations occurs in range of 1.63 to 229.68 mg kg-1 and was considerably lower in organic horizons (1.63-8.07 mg kg-1 ) than in mineral (17.58-229.68 mg kg-1). The concentration of lithium in subhorizons of forest litter increases according to the litter decomposition degree (01<0f<0fh). The Li concentrations found in all forest soils formed from sand were much higher than its natural content in surface mineral horizons of arable soils 1.30-56.00 mg kg-1. The total lithium content in studied soils was negative statistically correlated with the content of organic carbon (-0.6062), silt and clay fraction (-0.7131 and -0.6322), hydrolytic acidity (-0.5222), sum of exchangeable bases (-0.6196) and cation exchange capacity (-0.6277).

Porownanie toksycznego dzialania litu na niektore gatunki roslin

67%

Jurkowska H. , Rogoz A. , Wojciechowicz T.

Acta Agraria et Silvestria. Series Agraria

1997

tom 35

45-50

The influence of a big dose of lithium (25 mg x kg-1) on the development, appearance and crop yield of some plant species was investigated in a pot experiment. The plants reaction was higly diversified. Spinach and maize showed resistance to the applied lithium dose, whereas other species revealed disease symptoms and their yield decreased to lesser or greater degree.

Wpływ odpadowych węgli brunatnych i osadów ściekowych oraz ich mieszanin na zawartość kobaltu, litu i glinu w glebie i roślinie

51%

Symanowicz B. , Kalembasa S.

nr 1[177]

Doświadczenie wazonowe trzyletnie przeprowadzono metodą całkowicie losową. Celem niniejszych badań było prześledzenie zmian w zawartości kobaltu, litu i glinu w materiałach organicznych, w glebie i życicy wielokwiatowej (Lolium multiflorum Lam.) pod wpływem stosowania węgli brunatnych, osadów ściekowych oraz ich mieszanin. Całkowitą zawartość Co, Li i Al w materiałach organicznych, glebie i suchej masie trawy oznaczono metodą ICPAES na spektrometrze emisyjnym z indukcyjnie wzbudzaną plazmą, po uprzedniej mineralizacji „na sucho”. Średnia zawartość kobaltu w suchej masie życicy wielokwiatowej (Lolium multiflorum Lam.) wynosiła 1,39 mg.kg-1s.m., litu 53,97 mg.kg-1 s.m. i glinu 402,6 mg.kg-1. Największą zawartość kobaltu oznaczono w suchej masie rośliny testowej zebranej z obiektu kontrolnego, natomiast litu i glinu z obiektów, na których stosowano odpadowy węgiel brunatny z Konina z osadem z Łukowa.

A pot experiment was carried out, over a period of three years, based on the completely randomised model with three replications. The aim of the investigation was estimation of changes in the content of cobalt, lithium and aluminium in organic materials, in soil and in the dry mass of Lolium multiflorum Lam. under the influence of brown coal, waste activated sludges, their mixtures and mineral fertilization. The total content of Co, Li and Al in organic materials, soil and in dry mass of grass after dry combustion of samples was determined by ICP-AES method on the spectrometer Optima 3200 RL manufactured by Perkins-Elmer. The mean content of cobalt in tested plants reached 1.39 mg kg-1 , lithium 53,97 mg. kg-1 and aluminium 402,6 mg kg-1. The highest content of cobalt in dry matter of the tested plant, Italian ryegrass, was reached on the control object, while the highest levels of lithium and aluminium were recorded in dry mass of grasses from the objects where mixtures of waste brown coal from Konin and waste activated sludge from Łuków were applied.