SOLUBLE POLYSACCHARIDE FRACTIONS IN SELECTED ALBERTA SOILS
نویسندگان
چکیده
منابع مشابه
Determining phosphorus release rates to runoff from selected Alberta soils using laboratory rainfall simulation.
Phosphorus losses from agricultural land can cause accelerated eutrophication of surface water bodies. This study evaluated the use of soil test phosphorus (STP) levels to predict dissolved inorganic phosphorus (DIP) concentrations in runoff water from agricultural soils using laboratory rainfall simulation. The objectives of this study were to determine (i) to what extent STP concentrations ca...
متن کاملImmunomodulating polysaccharide fractions of Menyanthes trifoliata L.
Looking for new plant sources of immunomodulating agents polysaccharide-rich fractions (PS) from Menyanthes trifoliata L. (Menyanthaceae) have been isolated. The herb of Menyanthes trifoliata L. was sequentially extracted with water, 0.1 M NaOH, 8% CH3COOH, and 1 M NaOH. After dialysis and resolution on Biogel P-10 four homogenic (B-4, B-5, C-4, D-5) and two nonhomogenic (A-3 and D-4) PS were i...
متن کاملEffect of soil properties and sample preparation on extractable and soluble Pb and Cd fractions in soils
The effect of soil extraction procedures and/or sample pretreatment (drying, freezing of the soil sample) on the extractability of cadmium and lead was tested in a model experiment, with an employment of optical emission and atomic absorption spectrometry methods. In the first part, 6 extraction procedures were compared: 2 mol l HNO3, 0.43 mol l CH3COOH, 0.05 mol l EDTA, Mehlich III extraction ...
متن کاملThe Effects of Salinity on Extractability and Chemical Fractions of Zinc in Selected Calcareous Soils of Iran
Use of saline water for irrigation has shown considerable promise. However, its effect on the solubility and bioavailability of native soil nutrients is not well understood. This study was conducted to evaluate the effects of salinity on the behavior of zinc(Zn) in calcareous soils. The soil samples with different physiochemical properties were collected from four locations in Khorasan province...
متن کاملMethanotrophic production of extracellular polysaccharide in landfill cover soils.
A bench-scale soil reactor was used to study methane oxidation and EPS production under tropical conditions. The study of pertinent environmental factors affecting EPS production was carried out by batch cultivation of methanotrophs. These factors included variations in temperature (20 degrees C to 45 degrees C), soil water content (5% to 33%), and the supply ratios of methane/oxygen. The bench...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 1968
ISSN: 0008-4271,1918-1841
DOI: 10.4141/cjss68-027