@article{fdi:010040723,
  title = {{S}eparate effects of the biochemical quality and {N} content of crop residues on {C} and {N} dynamics in soil},
  author = {{S}all, {S}a{\¨ie}dou and {B}ertrand, {I}. and {C}hotte, {J}ean-{L}uc and {R}ecous, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study assessed the respective roles of biochemical quality and {N} content of plant residues on {C} and {N} dynamics in a soil. {B}oth {N}-15- and {C}-13-labeled oilseed rape residues (roots, seedpod walls) combining different biochemical characteristics and similar {N} content or the same biochemical characteristics and different {N} contents were used as amendments. {T}hese treatments were combined with two levels of soil inorganic {N} to ensure that decomposition was not limited by {N} availability. {T}he soil was incubated under laboratory conditions for 134 days. {S}oil amended with residues of similar biochemical quality (i.e. the two pod walls) displayed similar {C} mineralization dynamics when the initial {N} availability (residue+soil {N}) ranged from 1.7 to 3.2% of residue dry matter. {T}he roots showed poorer decomposition than the pod walls, lower cumulative {C} mineralization and greater accumulation of root-derived {C} in the > 50 mu m coarse fraction of the soil organic matter. {T}he {N} content of the residues influenced mineral {N} accumulation in the soil with a lower net immobilization of residues with low {C}-to-{N} ratios. {A}dding an exogenous source of inorganic {N} had no effect on {C} dynamics but modified the remineralization kinetics of the previously immobilized {N}, suggesting changes in the microbial community involved.},
  keywords = {{C} dynamics ; decomposition ; plant residue quality ; {N} availability},
  booktitle = {},
  journal = {{B}iology and {F}ertility of {S}oils},
  volume = {43},
  numero = {6},
  pages = {797--804},
  ISSN = {0178-2762},
  year = {2007},
  DOI = {10.1007/s00374-007-0169-y},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040723},
}