The study looked at how adding phosphorus, sulfur, and phosphate-solubilizing bacteria to clusterbean plants affected their growth and yield. They found that adding phosphorus increased the number of pods and seeds per plant, as well as seed and straw yield. Adding sulfur also increased yield components and protein content. Using phosphate-solubilizing bacteria boosted all yield components and total nutrient uptake. Overall, these additions improved the quality and quantity of clusterbean crops.