| irrigation frequencies and corn (zea mays l.) yield relation in northern turkey. | a field experiment was conducted during summer season of 2005 at the research station (altitude 180 m above sea level, 41 degrees 21' n and 36 degrees 15'e) faculty of agriculture, ondokuz mayis university, samsun, turkey. experiment consisted of three irrigation levels and a non-irrigation level. drip irrigation treatments consisted of three soil water deficits in the 90 cm soil profile depth was replenished to field capacity. irrigation treatments were a: no irrigation, b: irrigation at 50% of ... | 2008 | 18819605 |