[1] Sarwar G.,Schmeisky H.,Muhammad N. Hussain S.,Tahir M.A.,Saleem U. .2009 .Variations in nutrient concentrations of wheat and paddy as affected by different levels of compost and chemical fertilizer in normal soil. Pak. J. Bot., 41(5) : 2403-2410.
[2] Sarwar G.,Schmeisky H.,Muhammad N. Hussain S.,Tahir M.A.,Saleem U. .2009 .Variations in nutrient concentrations of wheat and paddy as affected by different levels of compost and chemical fertilizer in normal soil. Pak. J. Bot, 41 : 2403-2410.