An experiment was conducted in split split plot design with four replication at Integrated Farming System field, under College of Agriculture, Ummedganj, Agriculture University, Kota (Rajasthan) in the summer cropping season of 2019 and 2020. There are thirty treatment combination with five intercropping systems [sole cowpea, sole baby corn, cowpea + baby corn (2:1), cowpea + baby corn (3:1) and cowpea+ baby corn (4:1)] in main plot, three fertility levels (100, 125 and 150% RDF) in sub plot and two stress mitigating chemicals (0.5% CaCl2 and 1% KNO3 at flowering and pod development stage of cowpea) in sub sub plot and replicated four time. Results showed that 2:1 row ratio of cowpea and baby corn significantly increased almost all the growth parameters of cowpea viz. plant height, dry matter accumulation, branches per plant, number and weight of nodules as well as baby corn (plant height and dry matter accumulation) across all the growth stages. Both the component crops, gave significantly higher seed/cob, straw/fodder yield in sole cropping compared to their intercropping row ratios. Cowpea and baby corn (2:1) recorded significantly higher protein content in seed/cob of cowpea/baby corn. In the sub plots growth, yields (seed/cob and straw/green fodder) and quality of cowpea and baby corn were higher with the fertility level of 150% over lower levels (100% & 125% RDF). Moreover, foliar application of 0.5% CaCl2 gave the highest significant values of all the aforementioned growth parameters of cowpea and also of baby corn at all the growth stages (except at 25 DAS). Yields of both crop were also significantly higher with the application of 0.5% CaCl2 at flowering and pod development stage of cowpea over 1% KNO3, however protein content of cowpea as well as baby corn was not significantly affected by the foliar spray of chemicals.