Author(s):

Parameshwarareddy R, SS Angadi, MS Biradar and RH Patil

Abstract: The pot experiment was conducted at the Hi-tech Horticulture unit at Saidapur Farm, MARS, UAS, Dharwad during rabi 2015-16. The results indicated that, the total water requirement for tomato under polyhouse condition using drip irrigation levels at 50,75 and 100 percent pan evaporation (PE) were 20.83, 29.24 and 37.65 l plant^-1 respectively. Among drip irrigation levels 50 percent PE recorded significantly highest water productivity (74.56 kg m^-3) and least in 100 percent PE (67.56 kg m^-3). Within substrates treatment, mixed substrates of cocopeat + perlite + vermiculite at 50:25:25 recorded significantly higher water productivity (83.37 kg m^-3) as compared to others.

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