Two field experiments were conducted on broad bean plants in Sherbeen, Dakahlia Governorate during two successive seasons 2004/2005 and 2005/2006. The experiments were carried out to study the effect of K, B and the combination of (Fe, Mn, Zn) on two varieties of broad bean (G461 and G 843).                 All the treatments of the two experiments received recommended treatments; inoculation of seeds before sowing with (Rizobium leguminozarium ficia), 30 kg N and 30 kg P₂O₅/feddan. The most important results were as follows: 1.   K application (with 24 kg K₂O/fed.) increased the yield significantly where, the increases were 8.8% over the control, its effect increased when it was used with all trials. 2.   Micronutrients combination (Fe, Mn and Zn), spraying twice, increased the yield significantly and the increases were 33.7% over the control. 3.   Boron has an effective and significant effect on broad bean plants. When it was used alone it increased the yield 16%. It was more effective when it was used with the treatment of the combined micronutrients, the increase reached 50.3%. 4.   Using the balanced mineral fertilization [NPK + B + (Fe, Mn, Zn)] was of great and significant effect as it reached 50.7% over the control. 5.   The contents of all mineral under investigation were increased as a result of treatments used, which means increasing the seed quality.                 It can be concluded that the using integrated fertilization programs increase the quality and quantity of broad been seed yield with economical and less pollution benefits.