Effect of Nutrient Management on Growth and Yield of Clusterbean (Cyamopsis tetragonoloba (L.) Taub)

Abstract

Clusterbean (Cyamopsis tetragonoloba (L.) Taub)) is a climate-resilient legume extensively cultivated in arid and semi-arid regions for its multipurpose value. A field experiment was conducted during the Kharif season of 2024 at Suresh Gyan Vihar University, Jaipur, to assess the effect of various nutrient management practices on the growth and yield of clusterbean. Ten treatments involving combinations of RDF (Recommended Dose of Fertilizers), Rhizobium, and phosphate-solubilizing bacteria (PSB) were evaluated in a randomized block design. Results revealed that 100% RDF (T4) significantly enhanced plant height (81.19 cm), dry matter accumulation (72.00 g plant⁻¹), number of branches per plant (14.36), number of pods per plant (23.50), and number of seeds per pod (9.00). This treatment also recorded the highest seed yield (942 kg ha⁻¹) and straw yield (2548 kg ha⁻¹). Notably, the integrated treatment T10 (50% RDF + Rhizobium + PSB) performed comparably, confirming the potential of integrated nutrient management in improving clusterbean productivity sustainably under dryland conditions.