Journal of Kerbala for Agricultural Sciences, Agriculture of College, Kerbela University Journal of Kerbala for Agricultural Sciences 2309-5199 6 1 2019 03 01 Response of the yield components and cultivation economics to Grow More Nutrition application on potato (Solanum Tuberosum L.) . 56 61 159476 EN Sabah Abd Flieh Flieh Department of Horticulture and Landscape, College of Agriculture, Kerbala University, Kerbala, Iraq Razzaq Owayez Idan Department of Horticulture and Landscape, College of Agriculture, Kerbala University, Kerbala, Iraq Kadum Mohammed Abdullah Abdullah Department of Plant Protection/ College of Agriculture/ Kerbala University, Kerbala, Iraq Journal Article 2019 03 31 This field experiment was coducted to evaluate the response of potato yield to foliar application of Grow More Nutrition. It was carried out in the vegetable research farm at the Department of Horticulture, Agriculture Collage, University of Karbala, Iraq during spring season 2015-2016. The treatments were three concentrations of Grow More Nutrition (T1 0 mg L-1(control), T2 (25 mg L-1) and T3 (50 mg L-1) with three replication. The results showed that the application of  T3 (50 mg L-1) had a sicnificant impact on number of tubers, tuber weight, yield per plant, total yield, net return and cost benefit ratio (8.67, 73.33, 0.64, 31.44 t ha-1, Din. 9408000 t.ha-1 And Din.3.969697 t ha-1, respectively.