Volume 14, Issue 56, 2025 (October – December)
Research Article
Influence of Herbicidal Mode of Action on Nutrient Availability and Productivity of Green Gram
Khubi Poonia, Babu Lal Choudhary, Hoshiyar Singh, Mahaveer Prasad Ola, Abhijeet Beniwal, and Sonali Pal
DOI:10.37273/chesci.cs312056083
Full Tedt – PDF
Abstract
Weeds pose a serious constraint in green gram (Vigna radiata L.) production, particularly under rainfed and semi-arid conditions. A field experiment was conducted during Kharif 2024 at Vivekananda Global University Research Farm, Jaipur, Rajasthan, to evaluate different weed management practices on growth, yield, and economics of green gram variety SML-668. The study was laid out in a randomized block design with 10 treatments, including chemical (pre-emergence and post-emergence herbicides), cultural (manual weeding), and integrated methods with three replications. Data revealed that weed-free treatment (T2) recorded the maximum plant height (64.43 cm), branches per plant (5.96), dry matter accumulation (11.04 g), pods per plant (23.12), grains per pod (7.84), test weight (39.2 g), grain yield (1257.9 kg ha-1), and harvest index (28.91%). Among herbicidal treatments, pendimethalin 750 g/ha (PE) fb imazethapyr 75 g/ha (POE) (T9) and pendimethalin 750 g/ha (PE) fb quizalofop-ethyl 50 g/ha (POE) (T10) were superior to single applications. Manual weeding at 25 and 45 DAS (T6) also gave competitive results with weed-free plots. The lowest performance was observed in weedy check (T1), which significantly reduced yield by 57.6% compared to weed-free plots.
Economic analysis indicated the highest net returns and B:C ratio under weed-free condition, followed by manual weeding and integrated herbicidal treatments. The study concludes that integration of pre- and post-emergence herbicides or timely manual weeding can effectively manage weeds, improve productivity, and enhance profitability of green gram in semi-arid Rajasthan.
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