نوع مقاله : مقاله پژوهشی
استادیار مرکز تحقیقات کشاورزی صفی آباد دزفول
عنوان مقاله [English]
The goal of this research was evaluation of tape irrigation levels, 100%, 70% and 40% water requirement (T100, T70 and T40) and furrow irrigation (F) on the yield and water use efficiency (WUE) of summer tomato. The experiment was conducted in a randomized completely block design with four treatment and three replication for two years in Safiabad Agricultural Research Center. The resuls showed that the highest yield was in T100 and T70 with 54.6 and 53.4 t.ha-1 in yield, respectively and increasing yield was 25% higher than Furrow irrigation. T40 treatment with the lowest yield (42.9 t.ha-1) had a significant difference at 1% with T70 and T100. Water use efficiency(WUE) was highest in T40 (11.4 t.ha-1) but there was no significant difference between it and T70 treatment. In a general manner average of WUE in all tape irrigation levels were about 2.3 times furrow irrigation. So T70 treatment was proposed for Khouzestan climate conditions. No significant difference was between irrigation levels on tomato quality characteristics including Acidity, Scorbic acid and Sitric acid but severe deficit irrigation level (T40 treatment) was caused to increase Brix. Although soil salinity was not significant difference between irrigation levels, but it was significant for soil depth, So that average of soil salinity in 0-30 cm was 1.4 dsm-1 which it was 38% higher than 30-60 cm soil layer.