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EFFECT OF PLANTING DISTANCE AND NITROGEN FERTILIZER ON GROWTH AND YIELD OF JERUSALUM ARTICHOKE ( HELIANTHUS TUBEROSUS L) | ||
| AL-TAQANI | ||
| Article 1, Volume 19, Issue 3, 2006, Pages 0-0 | ||
| Abstract | ||
| The experiment was conducted in vegetables research field / Plant Production Department, Mosul Technical Institute , Numrod during spring season of 2001 and 2002 to investigate the effect of three planting distances (20, 30 and 40) cm and four levels of nitrogen fertilizers (0,10,20 and 30) kg N/Donum. on growth and yield of local variety of Jerusalem artichoke. Results showed that narrow planting distance (20 cm) had a significant increase effect in plant height, number of tubers/ plant and total yield per unit area but cause a significant decrease in number of branches, average weight of tubers and yield per plant. High level of nitrogen fertilizer (30kgN/D) increased all characteristics significantly except the number of branches/ plant .The interaction showed that high yield (13.601 Ton/D) was obtained by using narrow planting distance( 20 cm) between tubers and high level of nitrogen fertilizer (30 kg N/D), compared with low yield (4.570 T/D) obtained by using 40 cm between tubers and without nitrogen fertilization | ||
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