Differences in volatile terpene content of Pinus caribaea needles and soil qualities between two pine plantations (Uverito and Sartenejas) in Venezuela were analyzed. Soils in the Uverito pine plantation were sandy, low in nutritional quality, and deficient in available nitrogen and phosphorus content. Pines grown on these soils presented in their needles higher concentrations of alpha-pinene, ...

Activity of the enzymes can give information on the kind and duration of the effects of pollutants on the metabolic activity of soil. Results of studies on the dehydrogenase activity in soils experimentally contaminated with diesel fuel, with and without modification used in investigation over biodegradation process (including fertilization, stirring and inoculation) were presented in paper. St...

Physico-chemical properties of three Fadama farm site soils located in Ado-Ekiti, IkereEkiti and Ifaki Ekiti, all in Ekiti State, Nigeria, were evaluated. The parameters evaluated for were pH, particle size distribution, free Fe2O3 and Al2O3, organic matter, base saturation percentage and total exchangeable bases in eleven zones and thirty-three soil samples. The pH values showed that the soils...

Sparks D.L., Martens D.C., Zelazny L. W.: Plant Uptake and Leaching of applied and indigenous Potassium in Dothan Soils. Sparks D.L., Zelazny L. W., Martens D.C.: Kinetics of Potassium Exchange in a Paleudult from the Coastal Plain of Virginia. Sparks D. L., Zelazny L. W., Martens D. C.: Kinetics of Potassium Desorption in Soils using Miscible Displacement, Sparks D.L.: Chemistry of Soil Potass...

The application of electromagnetic methods in the radar and micro-wave frequency band allows the fluid content of soils to be estimated; the heuristic or physically-based models permit to relate the observed electrical permittivity of the soils with the porosity and fluid saturation. The role of the effect of the free water and bound water in the overall electromagnetic behaviour of soils is di...

Berseem (Trifolium alexandrinum) is one of the main fodder crops of Punjab, India. But due to the heavy metal contamination of agricultural soils by anthropogenic activities, there is rise in metal bioaccumulation in crops like Berseem. In addition to human influence, heavy metal contents in soil are highly dependent on soil characteristics also. Therefore a study was conducted in areas having ...

The experiment was laid down on October 3rd, 1932, at Hazara Estate, Kearsney, the property of The .pH gives an idea of the "force" .of .the free acids in the soil, but one can easily understand that two different soils, with different physica-l properties but the same degree of acidity in terms of pH, will not react in the same manner to identical lime treatment; for example, sandy soils poor ...