Response of Mungbean (Vigna radiata L.) to Integrated Nitrogen and Phosphorus Nutrition with Rhizobium and PSB Inoculation
Deepak
Department of Agronomy, FoAG, Tantia University, Sri Ganganagar, India.
Pradeep Kumar *
Department of Agronomy, FoAG, Tantia University, Sri Ganganagar, India.
J. S. Ranawat
Department of Agronomy, FoAG, Tantia University, Sri Ganganagar, India.
Ekta Singh
Department of Agronomy, FoAG, Tantia University, Sri Ganganagar, India.
G. M. Mathur
Department of Soil Science, FoAG, Tantia University, Sri Ganganagar, India.
Dropati Saran
Department of Agricultural Economics, FoAG, Tantia University, Sri Ganganagar, India.
U. S. Shwkhawat
Department of Genetics and Plant Breeding, FoAG, Tantia University, Sri Ganganagar, India.
*Author to whom correspondence should be addressed.
Abstract
This field study assessed the effects of integrated nitrogen and phosphorus nutrition with Rhizobium and phosphate-solubilising bacteria (PSB) inoculation on the growth, yield and economic returns of mung bean (Vigna radiata L.) in Sri Ganganagar, Rajasthan. The experiment was conducted during the Kharif season of 2025 at the Agricultural Research Farm, Tantia University. Seven nutrient treatments were evaluated in a randomised block design with three replications, using the MH-1142 variety. The experimental soil was alkaline (pH 8.65) and contained 0.17% organic carbon. Plant growth, nodulation, yield attributes, yield and treatment economics were recorded. Among the evaluated treatments, the combination of N₃₀ + P₆₀ kg ha⁻¹ with Rhizobium and PSB inoculation (T₇) produced the highest recorded number of pods (22.27 per plant), grains per pod (11.53) and test weight (35.3 g). It also gave the highest reported grain yield (1,276.67 kg ha⁻¹), compared with 860.00 kg ha⁻¹ in the control, together with the highest gross returns (₹116,211.93 ha⁻¹) and net returns (₹78,620.62 ha⁻¹). The reported benefit–cost ratio was 2.09 under T₇. These findings suggest that the evaluated combination of mineral nutrients and microbial inoculation may improve mung bean performance under the study conditions. Further field evaluations would be needed to assess its applicability across seasons and locations.
Keywords: Mung bean, Vigna radiata, nitrogen, phosphorus, Rhizobium inoculation, phosphate-solubilising bacteria, integrated nutrient management, nodulation; grain yield, economic returns