Herbicide weed management effect on growth attributing characters of rabi onion

Abstract

A field experiment was carried out during the rabi seasons of 2022–23 and 2023–24 at the All India Coordinated Research Project on Weed Management, Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. The study aimed to assess the comparative effectiveness of different herbicides for weed control in rabi onion and to determine their influence on plant growth parameters. The experiment design followed was Randomized Block Design comprising eight treatments replicated thrice. The treatments includes oxyfluorfen at 100 g ha-1 PE (T1), oxyfluorfen at 100 g ha-1 PE fb quizalofop-ethyl + oxyfluorfen at 100 g ha-1 (RM) PoE (T2), oxyfluorfen at 100 g ha-1 PE fb propaquizafop + oxyfluorfen at 148 g ha-1 (RM) PoE (T3), pendimethalin at 677 g ha-1 PE (T4), pendimethalin at 677 g ha-1 PE fb quizalofop-ethyl + oxyfluorfen at 100 g ha-1 (RM) PoE (T5), pendimethalin at 677 g ha-1 PE fb propaquizafop + oxyfluorfen at 148 g ha-1 (RM) PoE (T6), hand weeding @ 20, 40 & 60 DAT (T7) and weedy check (T8). Among the chemical weed control treatments, application of oxyfluorfen at 100 g ha-1 PE fb propaquizafop + oxyfluorfen at 148 g ha-1 (RM) PoE resulted in maximum plant growth parameters, demonstrating its superior efficacy in weed management and overall crop performance.