Influence of organic and inorganic herbicides on weed growth in maize (Zea mays L.)

The field experiment was conducted at Research farm of Department of Agronomy, Lovely Professional University, Phagwara, Punjab during kharif season of 2022-2023 to find out the effective weed control treatment in maize. The experiment consisted of ten treatments and three replications viz. T₁ weedy check (control), T₂ weed free, T₃ Acetic acid (10%), T₄ Acetic acid (20%), T₅ Eucalyptus Aqueous Extract 25%, T₆ Pendimethalin 35% EC, T₇ Atrazine 50% WP, T₈ Pendimethalin 35% EC + Atrazine 50 WP, T₉ Tembotrione 34.4% SC and T₁₀ Tembotrione 34.4% SC+ Atrazine 50% WP. Among the herbicide treatments, application of T₁₀ Tembotrione 34.4% SC+ Atrazine 50% WP effectively reduced the weed density as well as weed dry matter accumulation species wise (Echinochloa colona, Cyperus rotundus, Digera arvensis, Digitaria sanguinalis, Parthenium hysterophorus, Phyllanthus niruri) and total weed dry matter production. Weed control efficiency also higher in same treatment after T₂ (weed free) plot. In terms of controlling the weeds inorganic herbicide treatments quite effective as compared to organic treatments.