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- [2] EFFECT OF PHOSPHORUS ON MULTIPLICATION AND NITROGEN-CONTENT OF AZOLLA-PINNATA INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 1991, 61 (02): : 128 - 130
- [3] INFLUENCE OF RICE CROP CANOPY ON GROWTH AND NITROGEN-FIXATION OF WATER FERN AZOLLA-PINNATA PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-PLANT SCIENCES, 1988, 98 (03): : 209 - 214
- [7] EFFECT OF LIGHT, TEMPERATURE AND PHOSPHORUS ON THE GROWTH AND NITROGEN-FIXATION IN AZOLLA-PINNATA NATIVE TO SRI-LANKA ACTA OECOLOGICA-OECOLOGIA PLANTARUM, 1980, 1 (04): : 355 - 365
- [10] EFFECT OF COPPER-SULFATE ALGICIDE ON GROWTH OF AND NITROGEN-FIXATION IN AZOLLA-PINNATA R-BR CURRENT SCIENCE, 1989, 58 (09): : 518 - 519