EFFECT OF FOLIAR SPRAY OF POTASSIUM AND ZINC ON GROWTH ANDYIELD OF OKRA

A field experiment was carried out at the College of Agriculture / University ofBaghdad to study the effect of spraying different concentrations of potassium sulphate 44%Kas a source of potassium element in four concentrations (0,2000,4000,6000) mg K.l-1and referto them K0, K1, K2 and K3 respectively and were considered as main plot and zinc sulphate22%Zn as a source of zinc element in three concentrations (0, 30, 60) mg Zn.l-1and refer tothem Zn0, Zn1 and Zn2 respectively for the spring season 2017. Split plot experiment inRandomized complete Block Design (RCBD) with three replicates was adapted wherepotassium factor represented main plot and zinc factor in sub-plot .The means were comparedat least significant difference (L.S.D) at 0.05 probability level. Results showed that sprayingof potassium K2 superior increased plant high to 114.36 cm.plant-1, leaf area to 271.46 dcm2,total chlorophyll to 60.54 mg.100g-1fresh weight, fresh pods number to 59.22 pod.plant-1,fresh pod weight to 5.59 g.plant-1, plant yield to 331.84 g.plant1. While Zn1 significantlyincreased plant high to 111.60 cm.plant-1, leaf area to 267.86 dcm2, chlorophyll to 52.11mg.100g-1fresh weight, fresh pods number to 56.82 pod.plant-1, fresh pod weight to 5.25g.pod-1, and plant yield to 301.39 g.plant-1