Determining which adjuvant is the most effective is important in order to optimize herbicide efficacy. To study effect of Nicosulfuron along with surfactant on efficiency of weeds control in popcorn fields a split plot experiment was conducted, during 2024-2025 in a randomized complete block design. The Nicosulfuron herbicide was applied in concentrations of 1 and 2 L ha-1 with surfactants of volk oil, sunflower oil and corn oil. Seeds produced in those plants treated with 1 L ha-1 Nicosulfuron were heavier than 2 L ha-1. Similarly, crop plants Nicosulfuron sprayed along with volk oil and sunflower oil produced larger seeds. Above ground biomass of weeds in those plots sprayed with Nicosulfuron in absent of surfactant was 14 g m-2 higher than average of Nicosulfuron application along with all kind of surfactants. Since Nicosulfuron is highly effective on weeds control at low rates of 1 L ha-1, it may be necessary for corn farmers to reduce its application to sub-optimum rates by surfactant usage. In the absent of surfactant, full dose of herbicide application will be suitable for weed controlling in corn field, which is lead to higher seed production.