EFFECT OF NITROGEN FERTILIZATION AND ITS APPLICATION SYSTEMS ON VEGETATIVE GROWTH AND FRUIT YIELD OF SWEET PEPPER | ||
| Assiut Journal of Agricultural Sciences | ||
| Article 4, Volume 39, Issue 2, June 2008, Pages 51-61 PDF (516.39 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajas.2008.269691 | ||
| Author | ||
| Mohamed Shiban Bin-Ishaq | ||
| Dep. Far. Sys.Technology. Faculty of Applied Sciences - Seiyun Hadramout University of Science and Technology – YEMEN | ||
| Abstract | ||
| Two field experiments were conducted on sweet pepper plants (cv. California Wonder) during the consecutive summer seasons of 2006 and 2007, at El-Qaten region, Hadramout Governorate, Yemen. The objective of these experiments was to determine the effects of nitrogen fertilization rates (60, 90 and 120 Kg fed-1) and their application systems (three, four, five and six split doses), on vegetative growth, and fruit yield of sweet pepper. The obtained results indicated that increasing N applied rate was accompanied with significant increases in plant height , number of leaves , leaf area and dry mass plant -1 .Moreover, higher yield potential (yield plant -1, number of fruits plant-1 and average fruit weight-1) seemed to be associated with the application of 9o kg N fed -1 . Increasing number of split N applications up to six split doses, significantly , increased vegetative growth characters ; plant height, number of leaves , leaf area and dry mass plant -1. Total fruit yield plant-1, number of fruits plant-1 and average fruit weight characteristics were positively and significantly responded to the frequent N applications up to 5 or 6 doses. However, early yield was significantly decreased. The interaction between N rates and their application systems reflected significant differences for most of the studied characters, and revealed that the rate of 9o kg N fed-1 applied at six split doses; at transplanting, 4,6,10 and 12 weeks after transplanting, appeared to be the most effective combination treatment, which favored the production of high yield. | ||
| Keywords | ||
| pepper; nitrogen; application systems; vegetative growth; fruit yield | ||
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