8J9YWMIT

3364

7 janvier 2021 14:16

20 avril 2021 09:23

Twenty Belgian agricultural soils, 16 of which had been organically cultivated, were examined for their biochemical and microbiological properties. In spite of the very different nature of the characteristics studied, close relationships were found between soil respiration and glucose mineralization rates, biomass-C as measured by the fumigation-incubation method, and several enzyme activities, namely FDA-hydrolase, alkaline phosphatase and dehydrogenase. Correlation coefficients between urease activity and other biological measurements were always found to be endowed with a negative sign. Moreover, factor analysis of the data showed that some physico-chemical characteristics such as soil organic C, total N, clay content and CEC were closely related to most of the biological measurements, while pH and sand content were not. Two procedures for the determination of dehydrogenase activity and two methods of calculation of biomass-C were also compared.

None

• AB - Modalité bio
• CRA-W
• FREDO biologie et travail du sol
• GEO Belgique
• GEO Wallonie
• microbiological quality
• soil properties

Soil Biology and Biochemistry

21

53-58

January 1, 1989

1 janvier 1989

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