Estimation of Crop Water Requirement of Pineapple (Ananas comosus (L.) Merr.) for Drip Fertigation

The experiment was conducted at the research farm of ICAR- Central Coastal Agricultural Research Institute, Goa, India during 2016–2019 to estimate crop water requirement (CWR) pineapple different growth stages and compare performance economic viability irrigation systems. Crop calculated based on consolidated weather data 14 years evapotranspiration (ETc) using Penman-Montieth equation CROPWAT 8.0 software. In experiemtal location, maximum found in month May (81 mm month-1) minimum July (25 month-1). highest April (0.67 litre day-1 plant-1). During period monsoon, withdrawn due sufficienct soil moisture situation. Performance under systems viz., surface irrigation, drip fertigation studied that plant height (76.90 cm), D leaf width (5.45 number leaves (43), weight (150.3 g) fruit (2.35 kg) were fertigation. An estimated yield 96.80 t ha-1 recorded treatment followed by (90.99 ha-1) (76.45 treatments. cost economics analysis production treatments revealed gross returns (` 14.5 lakhs), net 7.9 lakhs) B:C ratio (1.2) treatment. Adoption system west coast agro-climatic conditions Goa is helpful enhance fetch good returns.