EFFECT OF DUST METALS AND COMPOST ON GROWTH OF Gundelia tournefortii L. AND CHEMICAL COMPOSTION OF IT᾿S EDIBLE PORTION

A field experiment was conducted at the Grdarasha Research Field station, College of Agricultural Engineering Sciences, Salahaddin University – Erbil using randomized complete block design (RCBD) during years 2019-2021 to study effect five levels 0, 5, 10, 15 and 20 g dust metals steel factory (size 2mm mesh) in combination with compost solid waste management sorting Akre district-Duhok province on growth, yield chemical composition Gundelia tournefortii L. The results indicated that powdery metal fertilizer significantly increased length, diameter, fresh weight dry edible portion, thus escalated total this plant for two growing seasons. highest value (669.07g/m2) recorded by application 20g combined second year. Chemical portion also affected Fe%, Co, Ni, Cu, Zn, Se, Hg Pb ppm. reviewed addition mineral as nutrients enhanced concentration these above elements portion. maximum response obtained high treatments all studied compared control.