na INLIS000000000007390 Ind 0010-1118007390 Report on the international trial on sources of phosphorus in flooded rice INTERNATIONAL RICE RESEARCH INSTITUTE International Rice Research Institute Manila IRRI 1980 88 p.: ill.; 27 cm. 88 p.: ill.; 27 cm. 633.18INTr 633.18 FLOODED RICE PHOSPHORUS 477/80