Field experiments were conducted to assess the productivity and economic feasibility of onion (Allium cepa L.) cv. Agri found Light Red
grown under drip fertigation. The trial was conducted during three consecutive rabi seasons of 2016-2019 at research farm of Precision
Farming Development Centre, Odisha University of Agriculture and Technology, Bhubaneswar. The experiments were laid out in
randomized block design (RBD) with ten treatments and three replicates. Three levels of irrigation @100, 80, 60% of ETc and three levels of
fertigation with water soluble fertilizers @ 100, 80, 60% of recommended dose were applied during experimentation. The results of the study
showed that the onion cv. Agrifound Light Red, when cultivated in sandy loam soil during winter season recorded maximum yield of 25.96
t/ha for treatment with irrigation at 80 percent ETc and fertigation at 100 percent recommended dose of fertilizer (RDF), but was at par with
irrigation at 80% of ETc and fertigation at 80% of RDF. The economic analysis was done involving the net present value (NPV), internal
rate of return (IRR), benefit cost ratio (BC ratio), payback period. The internal rate of return was observed maximum of 60.37% in case of
irrigation at 80% of ETc and fertigation at 100% RDF. But BC ratio and Payback period were found to be 3.6 and 2.3 years both for
treatment combination of irrigation at 80% of ETc and fertigation at 100% fertigation and treatment combination of 80% irrigation and 80%
fertigation of NPK-RDF.