RESPONSE OF KENAF (Hibiscus cannabinus L.) TO NITROGEN FERTILIZER AND PLANT POPULATION UNDER BASRAH ENVIRONMENTAL CONDITIONS | ||||
| Journal of Plant Production | ||||
| Article 5, Volume 5, Issue 5, May 2014, Page 793-799 PDF (360.79 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2014.55424 | ||||
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| Authors | ||||
| H. R. Majid; K. H. Huthily; D. S. Kareem | ||||
| Field Crop Dept. Agriculture College , Basrah University | ||||
| Abstract | ||||
| In order to grow kenaf crop in a large scale for manufacturing paper pulp for paper industry, many agronomics factors need to be known, among them nitrogen fertilizer levels and plant population density for maximum yield. Thus, experiments were conducted to determine the effect of four nitrogen levels (0,75,150, and 225kg N/ha) and two plant population (15 and 25 plants/m2) on seasons kenaf crop (Var. India) during the two growing of 2009 and 2010 at the field of General company for Paper Industry located 25 km North Basrah town. Increasing nitrogen fertilizer resulted levels in increases in plant height and stem diameter. Application of 255 kg N/ha gave highest bark percentage (38.9 %) and consequently increased bark yield (6.36 ton/ ha). Planting 25 plants/m2 gave highest plant height (307.9 cm.), bark percentage (34.33 %) and bark yield (5.54 ton/ha) but reduced stalk diameter . The interaction between highest nitrogen fertilizer (255 kg N/ha) and highest plant population density (25 plants/m2) gave highest stalk yield (18.03 ton/ha) and bark percentage (41.94%). It was concluded that kenaf crop has good potential to be planting on large scale by increasing nitrogen fertilizer to 255 kg N/ha and highest plant population (25 plants/m2) under Basra environmental conditions. | ||||
| Keywords | ||||
| Kenaf; Nitrogen fertilizer levels; plant population density | ||||
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