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Cycle interne de l'azote et du soufre dans les horizons humiferes forestiers des sols bruns acides

โœ Scribed by H. J. Praag; N. Brigode

Publisher
Springer
Year
1973
Tongue
English
Weight
473 KB
Volume
39
Category
Article
ISSN
0032-079X

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โœฆ Synopsis

The authors consider cross-tagged incubation results (part I)5, and several results of c o m p l e m e n t a r y incubations: effect of addition of sucrose on the number of substrate micro-organisms ; effect of addition of sucrose and tagged mineral salts of nitrogen on substrate; effect of addition of tagged organic nitrogen (fungal mycelium) with and without sucrose on substrate.

Transfer of tagged nitrogen from the active organic phase to the passive organic phase cannot alone explain the increase of active organic nitrogen during the incubation period. In fact, it is not possible to consider as equivalent, original active organic soil nitrogen, and tagged organic active nitrogen which is added. Their mineralization rates are probably neither equal, nor in constant ratio.

๐Ÿ“œ SIMILAR VOLUMES

Cycle interne de l'azote et du soufre da
Cycle interne de l'azote et du soufre dans les horizons humiferes forestiers des sols bruns acides
โœ H. J. Praag; N. Brigode ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Springer ๐ŸŒ English โš– 556 KB

T h e t u r n o v e r rate of inorganic soil nitrogen after a d d i t i o n of SO4(N15H4)2, is higher in forest h u m u s of acid mull a n d m o d e r form t h a n in o t h e r h u m u s forms. The same is true of t h e rates of nitrogen exchange b e t w e e n t h e m i n e r a l a n d organic phas