XV. Bacteria of two cultivated soils

Diversity of cultivated aerobic poly-hydrolytic bacteria in saline alkaline soils

Alkaline saline soils, known also as "soda solonchaks", represent a natural soda habitat which differs from soda lake sediments by higher aeration and lower humidity. The microbiology of soda soils, in contrast to the more intensively studied soda lakes, remains poorly explored. In this work we investigate the diversity of culturable aerobic haloalkalitolerant bacteria with various hydrolytic a...

International Journal of Pharma and Bio Sciences BIOREMEDIATION OF CHLORPYRIFOS BY BACTERIA ISOLATED FROM THE CULTIVATED SOILS

In this study, chlorpyrifos degrading capability of four bacterial monocultures (RCC-2, GCC-1, GCC-3 and JCC-3) and two bacterial mixed-cultures (GCE345 and GCC134) was investigated in terms of treatment duration and culture volume, using soil slurry medium. Among the bacterial mono-cultures, RCC-2 was found to be most efficient with 21, 37, 54 and 77% of chlorpyrifos degradation in 5, 10, 15 a...

Oxygen supply to plant roots in cultivated mineral soils

Roots of all plant species need oxygen for growth, and most crops are supplied with oxygen mainly from soil air. Poor aeration is generally a problem only in wet soils. In compacted soils both large mechanical impedance and poor aeration inhibit the growth of roots and may lead to yield reductions. In this study, the variation in soil air composition, N2O emission and several environmental vari...

Agrochemicals and Bacterial Diversity in Cultivated Tropical Soils

Study of the Phosphorus Sorption Behaviour in the Cultivated and Virgin Soils of Khoy Region

To study the behaviour of phosphorus (P) sorption in the agricultural soils of Khoy region and the effect of long-term cultural management with the application of poultry manure on the P sorption parameters, bath experiments were carried out with 16 soil samples (8 cultivated and 8 virgin soils) and 9 initial P concentrations from 0 to 30 mg L-1 in 0.01M CaCl2 as a background solution. After eq...