Practical application of azolla for rice production : proceedings of an international workshop, Mayaguez, Puerto Rico, November 17-19, 1982 / edited by W.S. Silver, E.C. Schröder. Silver, W. S. Schröder, E. C. University of Puerto Rico (Mayagüez Campus) International Workshop on "Practical Applications of Azolla for Rice Production" (1st : 1982 : Mayagüez, P.R.) Rice Fertilizers Congresses. Azolla as fertilizer Congresses. S667.R5 P73 1984 633.18 SIP First International Workshop on "Practical Applications of Azolla for Rice Production", organized by the University of Puerto Rico-Mayaguez Campus. Includes bibliographies and index. Dordrecht ; Boston : M. Nijhoff/Dr. W. Junk Publishers ; Hingham, MA : Distributors for the U.S. and Canada, Kluwer Academic Publishers, 1984. 1984. 1984 Text viii, 227 p. ; eng Developments in plant and soil sciences ; v. 13