The Impact of Organic Fertilizers and Growth stimulators on Leaf Chemical Composition of Pomegranate Seedlings (Selimi Cultivar)

Abstract

The study was conducted in the nursery of the Department of Horticulture and landscape, College of Agriculture, Tikrit University, during the growing season 2022, on one year old pomegranate seedlings cv. Salimi, in order to know the impact of organic fertilizer (sheep waste) with three levels (M0=control, M1=20%, and M2=40%), and some stimuli with eight levels (S0=control, S1=5000 mg L-1 glucose, S2=100 mg L-1 IBA, S3=200 mg L-1 IBA, S4=100 mg L-1 NAA, S5=200 mg L-1 NAA, S6= 6 ml seedlings-1 Taravert Evo and S7=12 ml seedlings-1 Taravert Evo) in the chemical Composition of the leaves of these seedlings. A factorial experiment according to (RCBD) with two factors. The results showed that M2 treatment significant effect in the chemical characteristics of the leaves in N, P, K, carbohydrates and the C:N ratio reached 2.34, 0.24, 1.46, 11.74 and 5.08%. The application of growth stimulators enhanced seedlings growth, where Taravert Evo gave the best results in the leaf content of N, P, and K. As for the interaction between the treatments, the M2S6 interaction treatment achieved a significant superiority in the leaf content of N, P, K, carbohydrates and C:N ratio.