The Enhancement of Plant Growth, Yield and Some Chemical Constituents of Dill (Anethum Graveolens, L.) Plants by Filter Mud Cake and Potassin Treatments

A field experiment was conducted during two successive seasons 2007/2008 and 2008/2009 to determine the influence of filter mud cake; 4, 8 and 12 m3/fed and potassin; 3, 6 and 9 ml/L and their combinations on vegetative growth, yield, volatile oil (percentage & yield), nitrogen, phosphorus and potassium (percentages & content) of Anethum graveolens plants. The obtained data showed that plant height, branch number, herb dry weight, umbels number, seed yield/plant and per fed., volatile oil (percentage & yield), N, P and K (percentages & contents), were generally increased as a result of applying filter mud cake. The highest values of the previous parameters were observed due to applying the high rate of filter mud cake (12 m3/fed.). In regard to potassin treatments, it was noticed that all of concentrations used led to a significant increase in plant height, branch number, herb dry weight, umbels number, seed yield (plant & fed.) volatile oil (percentage & yield per plant and per fed.), N, P and K (percentages & content). The highest values of the previous characteristics were obtained with potassin at high concentration. Generally, the combined effect among filter mud cake and potassin treatments on Anethum graveolens, L. plants parameters were statistically significant. In most cases, the addition of high rate of filter mud cake plus high concentration of potassin was the most effective treatments in increasing these parameters