@incollection{fdi:25627, title = {{T}he photosynthetic aquatic biomass in wetland rice fields and its effect on nitrogen dynamics}, author = {{R}oger, {P}ierre-{A}rmand and {G}rant, {I}.{F}. and {R}eddy, {P}.{M}. and {W}atanabe, {I}.}, editor = {}, language = {{ENG}}, abstract = {{T}he photosynthetic biomass that develops in the floodwater of wetland rice fields affects nitrogen dynamics in the ecosystem. {T}his review summarizes available data on the nature, productivity, and composition of the photosynthetic aquatic biomass, and its major activities regarding the nitrogen cycle, i.e., nitrogen fixation by free living blue-green algae and #{A}zolla$, nitrogen trapping, nitrogen accumulation at the soil surface, its effect on nitrogen losses by ammonia volatilization, nitrogen recycling, and the supply of nitrogen to the rice crop. ({R}{\'e}sum{\'e} d'auteur)}, keywords = {{CYCLE} {DE} {L}'{AZOTE} ; {RIZIERE} ; {ECOSYSTEME} ; {ALGUE} ; {MACROPHYTE} ; {PHYTOPLANCTON} ; {ZOOPLANCTON} ; {APPLICATION} {AGRONOMIQUE} ; {MICROBIOLOGIE} {DU} {SOL} ; {BIBLIOGRAPHIE} ; {SYNTHESE} ; {BIOMASSE} {PHOTOSYNTHETIQUE} {AQUATIQUE} ; {EAU} {D}'{IMMERSION} ; {PHILIPPINES} ; {MANILLE}}, booktitle = {{E}fficiency of nitrogen fertilizers for rice}, numero = {}, pages = {43--68}, address = {{M}anille}, publisher = {{IRRI}}, series = {}, year = {1987}, URL = {https://www.documentation.ird.fr/hor/fdi:25627}, }