Dried stigma of saffron is the most expensive spice in world. In Iran, majority farms use traditional basin method for irrigation, which, together with other irrigation methods may soon face serious problems because droughts future. Making an evaluation regional crop response to important adoption a proper management strategy. this study, effect employing different methods, including sprinkler,...

Three models were evaluated for their accuracy in simulating pesticide runoff at the edge of agricultural fields: Pesticide Root Zone Model (PRZM), Root Zone Water Quality Model (RZWQM), and OpusCZ. Modeling results on runoff volume, sediment erosion, and pesticide loss were compared with measurements taken from field studies. Models were also compared on their theoretical foundations and ease ...

use of the double ring infiltrometer to measure soil water infiltration in center pivot irrigation systems isn’t an accurate approach because the real conditions of infiltration under center pivot sprinklers is different from what happens in the double ring. in this study the infiltration parameters were evaluated in real conditions of a center pivot system. for this purpose a single ring with ...