نوع مقاله : مقاله پژوهشی
1 دانشجوی آبیاری و زهکشی دانشگاه تبریز
2 دانشجوی کارشناسی ارشد آبیاری و زهکشی دانشگاه تبریز
3 استادیار گروه مهندسی آب دانشگاه تبریز
عنوان مقاله [English]
The use of superabsorbent polymers is one of the effective solutions to increase water use efficiency and optimal use of rainfall in arid and semi-arid areas. In this study the effect of different levels of superabsorbent STOCKOSORB is investigated on wheat yield and yield components under rainfed and irrigated conditions. For this aim, an experiment was conducted in the Research Field of Agriculture Faculty, Tabriz University, in the growing season of 2015-2016, in which the superabsorbent STOCKOSORB was applied at three levels of 0, 50, and 100 kg/ha. Based on obtained results, application of superabsorbent at 100 kg/ha increased the seed yield and water use efficiency of both rainfed and irrigated wheat farming significantly. The application of 50 kg/ha increased rainfed wheat yield but not irrigated wheat yield, significantly. Results showed the effect of superabsorbent on yield and water use efficiency in irrigated wheat was larger than rainfed wheat. Also, the effects of superabsorbent application were significant in rainfed conditions at treatment of S1 (increase of water use efficiency equal 25.9 percent) and in irrigated wheat at treatment of S2 (increase of water use efficiency equal 19.2 percent). Due to ratio of the increasing benefit as a result of yield increase to cost, application of superabsorbent is not recommended in wheat farming.