Economic feasibility of drip irrigation and nutrient management in mango (Mangifera indica).
Sujatha S., Rao J. V., Reddy N. N.
Author Affiliation: Central Research Institute for Dryland Agriculture, Santhoshnagar, Saidabad, Hyderabad, Andhra Pradesh 500 059, India.
Indian Journal of Agricultural Sciences 76 : 312-314
Abstract : A field experiment was conducted in Hyderabad, Andhra Pradesh, India, from June 2001 to May 2003 on Alfisols to evaluate the economic feasibility of drip irrigation (no irrigation or drip irrigation at 0.25, 0.5 and 0.75 Ep) and nutrient management (0 or 75 kg farmyard manure per tree), recommended NPK (100 g each of N, P2O5 and K2O per tree; 100% NPK + 75 kg farmyard manure per tree; and 50% NPK + 37.5 kg farmyard manure per tree). The net income accrued was highest under no irrigation in 2001-02 and with drip irrigation at 0.75 Ep in 2002-03. On the second year, drip irrigation increased the net income by 68 538-118 499 rupees/ha over no irrigation (26 140 rupees/ha). The conjunctive use of 100% NPK + 75 kg farmyard manure per tree registered he highest net returns in 2001-02 (50 528 rupees/ha) and 2002-03 (125 446 rupees/ha). Mean data indicated that drip irrigation at 0.75 Ep and NPK + farmyard manure at the recommended level were highly profitable.