Vol. 12, Issue 4 (2023)

Author(s):
Ranajit Kumar Mahanta, Nitin N Gudadhe, Sumanth Kumar GV, Pradeep Kumar and Upasana Patel

Abstract:
A field experiment was conducted at college farm, N. M. College of Agriculture, Navsari Agricultural University, Navsari (Gujarat) during rabi and summer seasons of 2021 and 2022 respectively to study the effect of nano atrazine treatments on some growth characteristics of maize. The experiment was laid out in a Randomized Block Design (RBD) having ten treatments with three replications and the treatments include viz., T₁: recommended atrazine dose (1 kg ai ha^-1), T₂: nano-atrazine at 100% RDPE, T₃: nano-atrazine at 87.5% RDPE, T₄: nano-atrazine at 75.0% RDPE, T₅: nano atrazine at 50.0% RDPE, T₆: nano-atrazine at 87.5% RDPE + 2,4-D PoE, T₇: nano atrazine at 75% RDPE + 2,4-D PoE, T₈: nano-atrazine at 50% RDPE + 2,4-D PoE, T₉: weed free, T₁₀: unweeded. The growth parameters viz., plant height, dry biomass, number of leaves plant^-1, leaf area plant^-1, crop growth rate and relative growth rate were observed maximum under weed free treatment (T₉) followed by T₁ (Recommended atrazine dose (1 kg a.i. ha^-1), T₆ (Nano atrazine at 87. 5% RDPE + 2,4-D PoE) and T₂ (Nano atrazine at 100% RDPE). Emphasizing on farmers and finding an eco-friendly alternative for weed management treatment T₆ (Nano atrazine at 87. 5% RDPE + 2,4-D PoE) would be recommended, and additional studies should be conducted in the near future.