EFFECT OF PERMANENT FERTILIZATION AND AGRICULTURAL ROTATION ON COTTON PLANTS. | ||
| Egyptian Journal of Agricultural Research | ||
| Volume 72, Issue 3, September 1994, Pages 599-608 PDF (2.27 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejar.1994.451758 | ||
| Authors | ||
| SAMER S. MEGALAH; MOHAMED M. R. ABDEL-MAKSOUD; AMER S. ABDEL-NOUR | ||
| Soil and Water Research Institute, Agricultural Research Center, Giza, Egypt | ||
| Abstract | ||
| The permanent Experiment at Bahtim has been established in 1912 with three rotation systems of the main crops; cotton, wheat, and corn to study the effect of continuous application of mineral fertilizers and farmyard manure on crop yield. The yield results of cotton plant during 1979 to 1989 was studied and results showed: 1 . Mineral fertilization treatments gave highly significant increases in yield of cotton when compared with unfertilized plots. The Mineral fertilizer treatments could be arranged as follows: NPK> N> 0. 2 . The farmyard manure plots gave higher yields of cotton than unmanured plots and were comparable to that obtained by NPK treatment. 3 . The cotton yields of the three-year rotation were higher than thoses of any other rotation. | ||
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