Productivity and Economics of Summer Moong Bean (Vigna radiata L.) as Influenced by Pre- and Post-Emergence Herbicides
Bhavani Vanguri
Department of Agronomy, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, India.
Jaidev Sharma
Department of Agronomy, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, India.
Pradeep Rajput *
Department of Agronomy, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, India.
Shravan Kumar Maurya
Department of Agronomy, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, India.
Swapnil Jeughale
Department of Agronomy, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, India.
Aakash Malik
Department of Agronomy, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted at the Crop Research Centre, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, during the summer season of 2025 to assess the influence of pre- and post-emergence herbicides on summer moong bean (Vigna radiata L.) variety PDM 139 (Samrat). The experiment was arranged in a randomised block design with ten treatments and three replications. The treatments included weed-free and weedy-check plots, pre-emergence application of pendimethalin alone, pendimethalin tank mixtures with imazethapyr at different doses, and post-emergence application of quizalofop-p-ethyl and imazethapyr + imazamox at different doses. Weed-free conditions recorded the highest plant height, branches plant⁻¹, dry matter accumulation, pod length, pods plant⁻¹, grains pod⁻¹ and grain yield. Among herbicidal treatments, imazethapyr 35% WG + imazamox 35% WG at 75 g ha⁻¹ as post-emergence recorded better crop growth and yield attributes, with grain yield of 1052.68 kg ha⁻¹ and biological yield of 3112.65 kg ha⁻¹. The highest weed control efficiency among herbicidal treatments was obtained with imazethapyr + imazamox at 100 g ha⁻¹, but slight phytotoxicity was observed at this dose. The maximum benefit-cost ratio of 2.41 was recorded with imazethapyr + imazamox at 75 g ha⁻¹. The findings indicate that this treatment improved productivity and profitability under the experimental conditions.
Keywords: Moong bean, Vigna radiata, summer pulses, weed management, pre-emergence herbicides, post-emergence herbicides, imazethapyr, imazamox, pendimethalin, quizalofop-p-ethyl, weed control efficiency, benefit-cost ratio