“…However, drip irrigation is increasingly being adopted by farmers worldwide, including in unheated tomato greenhouses. Studies comparing sprinkler or furrow irrigation with drip irrigation in tomatoes and in other crops have shown that drip systems generally have better water-use efficiency and often provide higher yields (Ashcroft et al, 2003;Flowers et al, 2005;Hebbar et al, 2004;Singandhupe et al, 2003;Tiwari et al, 2003;Yohannes and Tadesse, 1998).…”