Effect of potassium humate and nitrogen fertilizer on herb - Ozean ...

Journal <strong>of</strong> Applied Sciences 2(3), 2009
Table 1. <strong>Effect</strong> <strong>of</strong> <strong>potassium</strong> <strong>humate</strong> <strong>and</strong> /or <strong>nitrogen</strong> <strong>fertilizer</strong> under different irrigation
intervals on herb <strong>and</strong> essential oil <strong>of</strong> Origanum vulgare L. plant in 2006/2007 <strong>and</strong>
2007/2008 seasons.
Treatments
Fresh weight g plant -1 Essential oil % Essential oil yield (plant -1 )
First cut
Season 1 Season 2 Season 1 Season 2 Season 1 Season 2
I-3 8.90 a ± 2.187 8.72 a ± 2.173 0.59 b ± 0.049 0.59 b ± 0.051 0.05 b ± 0.016 0.05 b ± 0.017
I-5 8.20 b ± 2.140 8.35 b ± 2.263 0.66 a ± 0.084 0.66 a ± 0.074 0.06 a ± 0.020 0.06 a ± 0.020
I-7 5.97 c ± 1.461 5.90 c ± 1.498 0.58 b ± 0.075 0.57 c ± 0.083 0.04 c ± 0.012 0.04 c ± 0.013
LSD at 0.05 0.1585 0.1466 0.0257 0.0211 0.0025 0.0026
N0 5.03 e ± 0.825 5.00 e ± 0.874 0.51 d ± 0.058 0.51 e ± 0.068 0.03 e ± 0.005 0.03 e ± 0.005
N 1 5.98 d ± 1.082 5.94 d ± 1.115 0.57 c ± 0.043 0.56 d ± 0.042 0.04 d ± 0.007 0.03 d ± 0.010
N 2 6.67 c ± 1.105 6.45 c ± 1.024 0.59 c ± 0.046 0.60 c ± 0.050 0.04 c ± 0.009 0.04 c ± 0.009
H 9.73 a ± 1.614 9.69 a ± 1.647 0.64 b ± 0.060 0.64 b ± 0.049 0.06 a ± 0.012 0.06 ab ± 0.013
N 1 +H 9.17 b ± 1.712 9.32 b ± 1.743 0.66 ab ± 0.049 0.66 ab ± 0.060 0.06 b ± 0.015 0.06 b ± 0.015
N 2 + H 9.55 a ± 1.698 9.55 a ± 1.662 0.68 a ± 0.057 0.68 a ± 0.043 0.07 a ± 0.013 0.07 a ± 0.013
LSD at 0.05 0.2242 0.2073 0.0363 0.0298 0.0035 0.0036
I-3 x N0 5.89 i ± 0.157 5.90 h ± 0.100 0.53 ± 0.029 0.53 ± 0.058 0.03 e ± 0.000 0.03 g ± 0.000
I-3 x N 1 6.94 g ± 0.140 6.88 f ± 0.104 0.55 ± 0.000 0.57 ± 0.029 0.04 d ± 0.000 0.04 f ± 0.000
I-3 x N 2 7.75 e ± 0.195 7.15 def ± 0.132 0.58 ± 0.029 0.58 ± 0.029 0.05 c ± 0.006 0.04 f ± 0.000
I-3 x H 11.10 a ± 0.354 10.89 a ± 0.032 0.60 ± 0.050 0.60 ± 0.000 0.07 b ± 0.006 0.07 b ± 0.000
I-3 x N 1 +H 10.72 ab ± 0.135 10.67 ab ± 0.155 0.63 ± 0.029 0.62 ± 0.029 0.07 b ± 0.006 0.06 c ± 0.006
I-3 x N 2 +H 10.99 a ± 0.515 10.82 ab ± 0.076 0.65 ± 0.000 0.67 ± 0.029 0.07 b ± 0.000 0.07 ab ± 0.006
I-5 x N0 5.20 j ± 0.093 5.19 i ± 0.106 0.53 ± 0.058 0.55 ± 0.050 0.03 e ± 0.000 0.03 g ± 0.000
I-5x N 1 6.42 h ± 0.070 6.44 g ± 0.110 0.60 ± 0.050 0.60 ± 0.000 0.04 d ± 0.000 0.04 f ± 0.000
I-5 x N 2 6.99 fg ± 0.036 7.10 ef ± 0.179 0.63 ± 0.029 0.65 ± 0.000 0.05 c ± 0.006 0.05 d ± 0.000
I-5 x H 10.44 bc ± 0.445 10.67 ab ± 0.289 0.70 ± 0.050 0.70 ± 0.000 0.08 a ± 0.006 0.07 ab ± 0.006
I-5 x N 1 +H 9.84 d ± 0.151 10.26 c ± 0.405 0.72 ± 0.029 0.73 ± 0.029 0.07 b ± 0.000 0.08 a ± 0.006
I-5 x N 2 +H 10.30 c ± 0.263 10.47 bc ± 0.451 0.75 ± 0.000 0.73 ± 0.029 0.08 a ± 0.000 0.08 a ± 0.006
I-7x N0 4.02 l ± 0.067 3.92 k ± 0.104 0.45 ± 0.050 0.43 ± 0.029 0.02 f ± 0.000 0.02 h ± 0.000
I-7x N 1 4.58 k ± 0.181 4.51 j ± 0.400 0.55 ± 0.050 0.52 ± 0.029 0.03 e ± 0.006 0.02 h ± 0.000
I-7 x N 2 5.27 j ± 0.061 5.09 i ± 0.086 0.57 ± 0.058 0.57 ± 0.058 0.03 e ± 0.000 0.03 g ± 0.000
I-7 x H 7.65 e ± 0.150 7.50 d ± 0.095 0.62 ± 0.029 0.62 ± 0.029 0.05 c ± 0.000 0.05 de ± 0.006
I-7 x N 1 +H 6.95 g ± 0.138 7.03 ef ± 0.252 0.63 ± 0.029 0.63 ± 0.029 0.04 d ± 0.000 0.04 ef ± 0.006
I-7 x N 2 +H 7.37 ef ± 0.321 7.37 de ± 0.126 0.63 ± 0.029 0.65 ± 0.000 0.05 c ± 0.000 0.05 d ± 0.000
LSD at 0.05 0.3884 0.3590 N.S N.S 0.0060 0.0064
Means with different letters within each column are significant at 0.05 level <strong>and</strong> means in the
same column with the same letters are not significant. Mean ±Sd; Since: N = <strong>nitrogen</strong> <strong>fertilizer</strong>, i.
e. N0 = control, N1 = 0.6 g pot -1 , N2 = 1.2 g pot -1 ; I = Irrigation
Intervals, i. e. I-3; I-5, I-7 = irrigation every 3, 5 <strong>and</strong> 7 days; H= <strong>potassium</strong> <strong>humate</strong>
324