Effects of organic and inorganic fertilizers on seed yield, yield components and oil quality of purslane (Portulaca oleracea L.)

In order to evaluate the effects of organic and inorganic fertilizers on yield attributes and quality of purslane crop, an experiment was conducted at the research farm of Shahrekord University in 2014. Different fertilizer treatments were consisted of 13 ton ha-1 broiler litter (BLn), 14.4 ton ha-1 broiler litter (BLp), 39 ton ha-1 cattle manure (CMn), 16.87 ton ha-1 cattle manure 150 kg ha-1 urea (CMp), four chemical fertilizer (CF) levels equivalent to organic manure treatments, 260 kg ha-1 Urea 䴣 CF (BLn), respectively, 287흍 kg ha-1 Urea 䴣, respectively CF (BLp), 260� kg ha-1 Urea 䴣 , respectively CF (CMn), 260흍 kg ha-1 Urea 䴣 , respectively CF (CMp U) and control (C). The results indicated that there were no significant differences in plant height of CF (BLn) (55.43 cm) with chemical treatments (CF (BLp), CF (CMn), and organic treatments (BLp and BLn). No significant difference was found for the number of seed per capsule between BLp and BLn treatments (180.48 and 167.78 seed, respectively). The 1000-seed weight in treatments BLp, BLn, and CMn (0.44, 0.43, and 0.42 g, respectively) showed no significant difference. The 1000-seed weight of CMn, CF (BLn), and CMp U treatments showed no significant difference as well. The seed yield, oil content, and oil yield of BLp treatment were significantly greater than that of control and other plots treated with manure. The amount of omega 3 in the BLp and BLn treatments was 85% and 79% higher as compared with the control (no fertilizer). Overall, the application of broiler litter could be effective in increasing the quality of the oil of this medicinal plant in addition to a significant increase in grain yield of purslane.