Calculation of rainwater harvest in greenhouses for semi-arid and continental climate zones

In this study, it is aimed to determine the irrigation water required due solar radiation in high technology greenhouses where soilless cultivation carried out according TS825 standards, and annual consumption storage capacity with harvested rainwater. As a result of calculations made for Turkey Mediterranean region, has been determined that if 90% rainfall western region harvested, 72% can be met, 45% eastern region. inner regions terrestrial climate dominant, 22%–32% met rain depending on amount rainfall. The volume 0.420 m3 .m-2, while 0.096 m3.m-2 0.044 Kırşehir, continental prevails.