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- [6] NITROGEN-FERTILIZATION OF SORGHUM IN AN OXISOL IN NORTHWESTERN PUERTO-RICO JOURNAL OF AGRICULTURE OF THE UNIVERSITY OF PUERTO RICO, 1978, 62 (04): : 380 - 388
- [9] EFFECT OF LEVELS AND TIMINGS OF NITROGEN-FERTILIZATION ON THE NITROGEN ACCUMULATION IN CSH-1 SORGHUM INDIAN JOURNAL OF AGRICULTURAL SCIENCES, 1980, 50 (02): : 148 - 151