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Microbiological and biochemical effects of the application of bitumenous emulsions as soil conditioners

J. P. Voets, M. Meerschman and W. Verstraete
Plant and Soil
Vol. 39, No. 2 (OCTOBER 1973), pp. 433-436
Published by: Springer
Stable URL: http://www.jstor.org/stable/42932403
Page Count: 4
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Microbiological and biochemical effects of the application of bitumenous emulsions as soil conditioners
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Abstract

Bitumenous emulsions, used as soil conditioners for various soil textural classes, caused no dramatic short-term or long-term alterations of various soil microbial populations and enzymatic activities. A certain inhibition of the soil microbial populations and enzymes occured at the higher application rates (1.0-1.5 1/m²) of bitumen, especially in the sand and clay soils, while an enhancement was often noted at the lower rates (0.5-0.75 1/m²), particularly in the loam soils.

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