EFFECT OF DIFFERENT LEVELS OF NITROGEN AND PhOSPHORUS ON YIELD AND YIELD ATTRIBUTES OF SESAME (Sesamun indicum)

Abstract

An experiment was carried out to investigate the effect of nitrogen and phosphorus on the yield and yield attributes of sesame cv. I3ARI Til-2 at the Field Laboratory of Slier-c- Bangla Agricultural University. Dhaka-1207. The experiment comprised four levels of nitrogen viz, no nitrogen (N), 30kg N ha S ' (N1 ), 45 kg N ha' (N 2 ). 60kg N ha" (N 3 ) and four levels of phosphorus viz. no phosphorus (P). 60 kg P 205 (111 ). 70 kg 1?105 ha'' (P2 ) and SO kg P 2 05 ha''(P). The experiment was laid out in a Randomized Coniplete Block Design (factorial) with three replications. Results revealed that /itrogen significantly increased yield and yield conirihutiug characters of sesame. Anionu the Four levels of nitrogen the second highest level i.e. 45 kg N h a a performed best in obtaining the highest values in almost all the parameters such as Number ol'hranches plant''(2.29), Number of capsule plan('(33. 8 ) ). length of capsule (2.32 cm), Number of seeds capsule"(65.02). seed yield pl ant !(4. 179), seed yield ha'1316.67 kg)e Phosphorus also showed significant effect on yield and yield attributes of sesame. Like nitrogen phosphorus at the second highest level i.e. 70 kg P 205 ha"produeed the highest values in all the studied parameters except the height of plant. /Ihe lowest values in the studied parameters were obtained front the control treatmen. C'omhiiied effect of nitrogen and phosphorus also showed significant effect on y i eld and yield attributes except number of capsules plant and 1000 seed weight. Nitrogen at the rate o145 kg ha'' witl) 70 kg P 2O ha'' produced the highest values in the studied parameters and in the interaction effect lowest values were obtained from the control treatment combination.