Field experiments were conducted during kharif 2008 and 2009 at Tamil Nadu Agricultural University, Coimbatore to study the effect of drip fertigation on growth, yield and economics in intensive maize based intercropping system. During kharif 2008, drip fertigated maize at 150% RDF recorded significantly higher grain yield of 7338 kg/ha. Whereas during kharif 2009, higher grain yield of 7464 kg/ha was recorded under drip fertigation of 100% RDF with 50% P and K as water soluble fertilizer (WSF). Among the different intercropping systems, radish intercropped with maize registered a higher maize grain equivalent yield (MEY) of 11153 kg/ha. Drip irrigation helped to save the water upto 43% compared to surface irrigation besides enhancing the water use efficiency. A higher net return (Rs. 56858) and B:C ratio (3.24) were obtained under drip fertigation of 150% RDF+radish as intercrop combination.
