Effect of phosphate fertilization, gibberllin spray and their Interaction on nutritional state of lentil (Iens culinaris Medic)

Pots experiment was conducted in the green house of Biology department , College of Education ( Ibn Al-Haithum), University of Baghdad , growing season of 2009,to study three levels of Diamonium phosphate fertllizer (0,0.16,0.32) eml2Kepot this equal (0,40,80) Kg/d. respectively , three concentrations of gibberllin (0,50,100) ppm and their interaction on elements concentration (N,P,K and Ca ) and protein percentage in vegetative part of lentll (I*ns culinaris Medic. ) cv. Barka. Factorial experiment with completely randomized design with three replications was adopted . Results showed that fertilization of phosphate at different levels and concentrations ofgibberllin spray increased and significantly influenced element concentrations and protein percentage except the phosphorus concentration . Also, results showed that fertilization of phosphate and gibberllin spray has significant effect on N,K and protein percentage concentration but not significant effect on P and Ca concentration , since treatment with (80Kg/d. fertilizer and 50ppm gibberllin )gave the highest concentration of N and protein percentage , while treatment with (80Kg/d. fertilizer and l00ppm gibberllin ) gave highest concentration of K.