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- [6] YIELD RESPONSE OF SORGHUM CULTIVARS TO INORGANIC NITROGEN-FERTILIZER JOURNAL OF AGRICULTURAL SCIENCE, 1984, 102 (FEB): : 7 - 10
- [8] GRAIN-SORGHUM NITROGEN FERTILITY OKLAHOMA AGRICULTURAL EXPERIMENT STATION RESEARCH REPORT, 1977, (NP-75): : 63 - 63