تعیین کارایی مصرف آب و بررسی اثرات آبیاری برروی خصوصیات کیفی توتون‌ گرمخانه‌ای رقم کا326

In order to study effects of difference drip irrigation time and amount on flue cured tobacco (var.K326) an experiment was carried out based on randomized complete block design (RCBD) with 14 treaetments and 3 replications in 2011 -2012 in Tirtash Tobacco Reaserch and Education center. Treatments were 40, 60, 80 and100 percent water need amount irrigation and 5, 10, 15 days irrigation period with two control (Dry farming and furrow irrigation). average price, high income and efficiency (3.34 kg per m3of water)40 percent water need with 15 days period was the best treatment. Maximum tobacco price achieved when they irrigated with 80 percent water need in 15 days period.Highest and lowest chlorine absopption were belaged to 100 and 80 percent treaetments with 5 and 10 day period and without irrigation control. but the highest net income was in 100 percent water need irrigation with 5 days interval (145Million rial/hectare).