كارايي مصرف آب و عملكرد محصول دو گياه جاليزي در آبياري كوزه اي و جويچه اي

Water use effeciency and crop yield under pot and furrow irrigation systems

Arid and semi-arid lands involves about seventy five percent of Iran. In this regions, the ground water resources are decreasing rapidly and irrigation efficiency of surface methods is low, then we have to apply the methods of irrigation that has the minimum water losses (Percolating and Evapotranspiration). Irrigation efficiency in pot and pressurized methods with correct and desire design and perfomance is higher than surface methods. Pot irrigation is a suitable method for this areas that has begin already applied in Yazd and Kerman provinces. In subsurface irrigation methods water is supplied directly to the root zone of crop, without wetting the soil surface. In this study, irrigation efficiency and crop yield of two irrigation methods namely pot and furrow are compared in Yazd. The planted crops were, water - melon and cucumber. The research method has been taken in random plots. The results of this research shows that the content of water use per unit area in pot irrigation is about 25 percent of furrow irrigation, also the yields of water - melon and cucumber crops are increased respectively 10 and 25 percent.