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Requirements for sustainable irrugation in East Croatia

Eastern Croatia includes the most eastern part of the Republic of Croatia (surfaces about 11000 km2 and 1 million inhabitants). Due to favourable geographical soil and water conditions, this region has great possibilities for sustainable agriculture with irrigation. After 1981 drought years have appeared more frequent with the average of 643 mm of annual precipitations (358 mm in vegetation of crops). In this paper definition of the dry years were calculated according to index after de Martone, Seljaninov, Lang and Palfai. Referent evapotranspiration (ETo) were caried out according to Penman-Monteith s method too. Water requirements and depth of irrigations for some very important crops in east Croatia were also calculated in this paper by Cropwat computer program.

dry years; annual and vegetation precipitations; referent evapotranspiration; sustainable irrigation; irrigation requirements of crops

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