Table 2: Effects of tillage, N application and different seasons on wheat grain water use efficiency (kg grain ha-1 mm-1) *.
|Year||Conventional till (CT)||No-till (NT)||Year mean|
|No N added (N0)||75 kg N ha-1 (N75)||No N added (N0)||75 kg N ha-1 (N75)|
*Treatment effects: least significant difference at P < 0.05; year, 1.00; N, 0.71; year × N, 1.42. Tillage, and year × tillage, tillage × N and year × tillage × N interactions were not significant.