ABSTRACT
This chapter focuses on the evaluation of the use of water-soluble fertilizers for sustainable sugarcane initiative (SSI) under subsurface drip irrigation with fertigation. The highest net return (Rs. 3,13,090 Rs./ha (5218 US$/ ha)) was realized under drip fertigation of 100% RDF with ultrasol, MAP, and urea (F7). The next best treatment in increasing the net return was drip fertigation of 100% RDF with urea, MAP, and SOP up to 120 DAP + with Ultrasol from 121 to 210 DAP (F5). But drip fertigation of 100% RDF (P as basal, N&K through drip as urea and MOP) under subsurface drip irrigation system registered the highest B:C ratio (3.70) owing to its lesser cost of cultivation contributed by lower cost of commercial fertilizers.
