A pot experiment was conducted during the 2019/2020 and 2020/2021 seasons to evaluate effect of silver nanoparticles (SNPs), iron (FeNPs), zinc (ZnNPs), nitrogen, phosphorus, potassium (NPK NPs) humic acid (HA) in improving growth Philodendron plants. Our findings indicated that highest increase plant height leaf width recorded with 60 mg/L SNPs. Additionally, values number leaves/plant were SN...