<p>Efficient nutrient management is crucial for profitable garden pea (<i>Pisum sativum</i> L.) production. A field study evaluates the practical consequences of bio-fertilizer, organic and inorganic fertilizer application strategies on garden pea productivity, quality, nutrient uptake, efficiency and economic viability. Utilizing a Randomized Complete Block Design with seven treatments replicated three times. Treatments were ^T1 = Control, ^T2 = Recommended of N-P-K-S-Zn-B at 60–25-40–10-3–2 kg ha⁻¹, ^T3 = 1.25 t ha⁻¹ vermicompost (VC)+ <i>Rhizobium</i> inoculant (50 g/kg seed) + 75% of NPKSZnB, ^T4 = 1.25 t ha⁻¹ VC+1.40 t ha⁻¹ cowdung (CD)+ <i>Rhizobium</i> inoculant (50 g/kg seed)+ 50% of NPKSZnB, ^T5 = 1.20 t ha⁻¹ poultry manure (PM)+1.40 t ha⁻¹ CD+ <i>Rhizobium</i> inoculant (50 g/kg seed) +50% of NPKSZnB, ^T6 = 1.25 t ha⁻¹ VC+1.20 t ha⁻¹ PM+ <i>Rhizobium</i> inoculant (50 g/kg seed) + 50% of NPKSZnB and ^T7 = 1.40 t ha⁻¹ CD+ <i>Rhizobium</i> inoculant (50 g/kg seed)+75% of NPKSZnB. Treatment T₃ produced the highest green pod (10.7 t ha⁻¹) and seed (2.46 t ha⁻¹) yields, attributed to more pods per plant, larger pods, and heavier seeds. Economically, T₃ demonstrated substantial increments over control, boosting gross returns by 48.9% and the BCR by 22.3% for green pods. For dry seeds, T₃ increased gross returns by 42.5% and BCR by 16.8%.Treatment T₃ resulted in the highest levels of vitamin C (42.2 mg/100 g), protein (22.1%), and nodulation (34.2). Moreover, this treatment improved nutrient acquisition, uptake, and recovery efficiency. Results suggest that combined application of 1.25 t ha⁻¹ vermicompost+<i>Rhizobium</i> inoculant+ 75% of NPKSZnB fertilizer is highly effective for enhancing garden pea productivity and quality, while also promoting sustainable soil health and environmental benefits.</p>