@article{fdi:23231,
  title = {{E}cosystem manipulation for increasing biological {N}2 fixation by blue-green algae ({CYANOBACTERIA}) in lowland rice fields},
  author = {{G}rant, {I}.{F}. and {R}oger, {P}ierre-{A}rmand and {W}atanabe, {I}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}n introduction to the soil/floodwater ecosystem of lowland rice fields is given. {T}wo primary consumers are particularly important in limiting the growth and {N}2-fixing activities of blue-green algae in irrigated rice ; the {OSTRACODA} ({C}lass {CRUSTACEA}) and the {PULMONATA} ({MULUSCA}). {C}ontrol of grazing by neem seeds {AZADIRACHTA} {INDICA} {A}. {J}uss and cultural practices enhanced {BGA} biomass and increased {N}2-fixation ten fold. {S}ignificant increases in rice grain protein occur if heterocystous algae bloom early in the rice cultivation cycle and grazing control is maintained over 40 days. {A} large positive {N} balance was obtained over 3 rice crops by using neem seeds to control grazing of {BGA}. {A}lgal inoculants used in conjunction with grazer control failed to establish themselves, and factors other than grazing were considered responsible. {P}lant-derived pesticides showed great promise for sustainable agriculture. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{FIXATION} {BIOLOGIQUE} {DE} {L}'{AZOTE} ; {RIZIERE} ; {ECOSYSTEME} ; {APPLICATION} {AGRONOMIQUE} ; {MICROBIOLOGIE} {DU} {SOL} ; {BIOMASSE} {ALGALE} ; {BACTERIE} ; {PREDATION} ; {INOCULATION} ; {PHILIPPINES}},
  booktitle = {},
  journal = {{B}iological {A}griculture and {H}orticulture},
  volume = {3},
  numero = {},
  pages = {299--315},
  year = {1986},
  URL = {https://www.documentation.ird.fr/hor/fdi:23231},
}