Biological nitrogen fixation in paddy field studied by in SITU acetylene-reduction assays - Watanabe, Iwao; Lee,K.K.; Alimagno,B.V.; Sato,M.; Del Rosario,D.C.; De Guzman,M.R. (Manila The Internationial Research Institute, 1977)
Photocopy.
IRRI research paper.
Includes bibliographical references.
Keywords: Soils -- Nitrogen content; Nitrogen -- Fixation