This study aimed to investigate the effects of polyacrylamide (PAM) and humic acid (HA), wheat straw (WS) and hazelnut husk (HH) application on wheat yield, soil organic matter and nitrogen content of sandy and clay loam texture under greenhouse conditions. The study was conducted according to the experimental design of the randomized complete block experimental design. Wheat straw and hazelnut husk were applied at 0%, 2% and 4% doses, polyacrylamide at 0 ppm, 30 ppm, 60 ppm and 90 ppm, and humic acid at 0 ppm, 200 ppm and 1000 ppm. After five months of incubation period, wheat plants were grown in pots. The study was completed in a total of 312 days along with the incubation period. It was determined that the treatments affected the organic matter and total nitrogen content. As a result of the applications, it was determined that the organic matter content was more affected in clay loam textured soil, but the nitrogen content and wheat yield were more affected in sandy loam textured soil. It has been determined that the application of synthetic conditioners together with plant residues is the most effective application in increasing organic matter and nitrogen content.