Vol. 12, Issue 12 (2023)

Author(s):
AT Jadhav, AS Karle, Priya Sharma, Shaikh HM and MR Sawadadkar

Abstract:
The field study on integrated weed management in kharif sunflower was carried out at the Experimental Farm, Agronomy Section, Oilseeds Research Station, Latur, during the 2022–2023 kharif season. With three replications and eight treatments, the experiment was set up in a randomised block design. T₁ stands for weed-free, T₂ for weedy check, T₃ for farmer's practices (1 HW+ 1HH), T₄ for pendimethalin 30 EC at 0.75 kg a.i. ha^-1 + hoeing, T₅ for pendimethalin 30 EC @ 1.0 kg g a.i. ha^-1 + straw mulching, T₆ for metolachlor 50 EC at 0.75 a.i. ha^-1 + hoeing, T₇ for metolachlor 50 EC @ 1.0 a.i. ha^-1 + straw mulching, and T₈ for sunflower + green gram intercropping. The gross and net plot sizes of the experimental unit were 5.4 m × 4.5 m and 4.2 m x 3.9 m, respectively. On July 16, 2022, seeds were sown using the dibbling method at a spacing of 60 x 30 cm2 with a seed rate of 5 kg ha^-1. 90:45:45 kg ha^-1 of fertiliser, the recommended dosage, was applied. N administered in divided doses and the entire amount of PK administered as a baseline dose. October 15, 2022, was the harvest date of the crop. The outcome shown that the application of Pendimethalin 30 EC @ 1.0 kg g a.i. ha^-1 + straw mulching and Metolachlor 50 EC @ 1.1 a.i. ha^-1 + straw mulching considerably increased the growth yield contributing features. Were discovered to be advantageous as compared to the other treatments.