Yield Response of Drip-Irrigated Onion under Full and Deficit Irrigation with Saline Water in Arid Regions of Tunisia

Table 3

Water supply (mm) under different irrigation treatments.

Treatments	Irrigation (I)^*	Irrigation water saved (%)	Precipitation (P)	(I + P)
2008
SWB-100	492	—	38	530
DI-80	394	19.9	38	432
DI-60	295	40.0	38	333
SWB100-MDI60	413	16.1	38	451
Farmer method	712	—	38	750
2009
SWB-100	474	—	47	521
DI-80	379	20.0	47	426
DI-60	285	39.9	47	332
SWB100-MDI60	405	14.6	47	452
Farmer method	631	—	47	678

^*An irrigation of 75 mm supplied just before planting is not included in these totals.