Efficacy of New-Era Combined Herbicides on Weed Dynamics, Productivity and Economics of Summer Green Gram (Vigna radiata L.)

DOI: 10.22161/ijeab.112.7

Abstract:
A field experiment titled “Efficacy of new-era combined herbicides on weed dynamics, productivity and economics of summer green gram (Vigna radiata L.)” was carried out during the summer season of 2018 at the Instructional Farm, N. M. College of Agriculture, Navsari Agricultural University, Navsari, Gujarat. The study comprised ten weed management treatments, evaluated in a RBD (Randomized block design) with three replications. The treatments included: (T₁): pendimethalin at 900 g ha⁻¹ as pre-emergence followed by one hand weeding at 30 DAS, (T₂): sodium acifluorfen + clodinafop-propargyl (ready-mix) at 250 g ha⁻¹ as post-emergence applied at 20 DAS, (T₃): imazethapyr + pendimethalin (ready-mix) at 750 g ha⁻¹ as pre-emergence, (T₄): imazethapyr + imazamox (ready-mix) at 70 g ha⁻¹ as pre-emergence, (T₅): imazethapyr + propaquizafop (ready-mix) at 125 g ha⁻¹ as post-emergence at 20 DAS (T₆): quizalofop-p-ethyl at 100 g ha⁻¹ as post-emergence at 20 DAS, (T₇): fenoxaprop-p-ethyl at 100 g ha⁻¹ as post-emergence at 20 DAS, (T₈): two hand weedings at 20 and 40 DAS, (T₉): unweeded control and (T₁₀): weed-free check. From the results of experiment observed that significantly highest value of growth parameters yield attributes and yield of green gram seed yield, straw yield and harvest index were observed under weed free (T10) treatment, which was statistically at par with the treatment pendimethalin 900 g /haas pre-emergence + 1 HW at 30 DAS (T1) and followed by sodium acifluorfen + clodinafop-propargyl (RM) 250 g /haas post-emergence at 20 DAS and 2 HW at 20 and 40 DAS (T2).

Keywords:
Weed, Green gram, Herbicides, Yield attributes and Yield.

Article Info:
Received: 03 Feb 2026; Received in revised form: 04 Mar 2026; Accepted: 09 Mar 2026; Available online: 18 Mar 2026

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