A total of 77 papers were presented and discussed during this symposium, 37 are included in this Volume II. The topics covered in this volume include: bioc...
A survey of the literature pertaining to soil fats, waxes, and resins (often called bitumens or simply lipids) indicates that these substances are probably...
The Ambassador U and multi-element deposit occurs on the SW margin of the Gunbarrel Basin, Western Australia. Low-grade, flat-lying U mineralization averag...
Acid hydrolysates of peat, from which the bitumens or humic substances have been removed ("modified peats"), were employed as substrates for the growth of ...
Electron spin resonance (ESR) measurements of soil and its fractions (humic acids, fulvic acids, post-extraction residues and bitumens) were performed and ...
A method and a system for minimizing circulating fluid return losses during drilling of a well bore are disclosed. Circulating fluid, or mud, is heated above conventional temperatures for circulating fluids. The heated circulating fluid ...
Geological samples were collected from 27 representative locations in the Athabasca Oil Sands Region (AOSR) in Alberta, Canada. These samples were resuspended onto filter substrates for PM2.5 and PM10 size fractions. Samples were analyze...
Humic acids in both samples are mainly over 50% free or R2O3 bounded which is a precondition of formation of more labile and mobile substances humus ...
substances were separated and quantitatively determined: (I) bitumens, soluble in a mixture of alcohol and benzene; (2) humic acids, soluble in o.I n...
It is now generally accepted that soil organic matter (humus) plays a major role in maintaining or improving soil fertility 2,104 . Because of the complexi...
Investigations were carried out at the Horticultural College and Research Institute to study the effect of spacing and bio-stimulants on the plant nutrient...
One of the most important items of modern agriculture is the reduction of environmental impact thanks to the integration of new cultivation and protection ...
