Naslov
Irrigation requirements and potentials of agricultural land in the river Drava basin in Croatia

Autori
Husnjak, Stjepan ; Šimunić, Ivan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Soil Protection Activities and Soil Quality Monitoring in Southern Eastern Europe / Panos, Panagos ; Vernik, Tomaž ; Vrščaj Borut ; Čustović, Hamid - Ispra : Europska komisija, 2011, 137-144

ISBN
978-92-79-20727-3

Skup
Soil Protection Activities and Soil Quality Monitoring in Southern Eastern Europe

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 18.06.2009. - 19.06.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
soil; suitability; irrigation; water deficit; River Drava basin; Croatia

Sažetak
The principal aim of the study is to illustrate, on the example of Virovitica-Podravina County, irrigation requirements and potentials in the River Drava basin, one of the most important agricultural regions in Croatia. Irrigation potentials are presented through the analysis of land and water resources, while irrigation requirements are shown through the calculated water deficit in intensive agricultural production. Highly valuable land resources for irrigation have been determined in the territory of the said county. The soil map of the current land suitability for irrigation shows that of the total agricultural land area amounting to 120, 286.0 ha, 74.4% are soils suitable for irrigation. Out of these soils, 22.8% are highly suitable, 22.7% moderately suitable and 28.9% are marginally suitable for irrigation. Soils not suitable for irrigation spread over 30, 807.1 ha or 25.6%. Among these soils, 25% are soils currently not suitable for irrigation, which can be developed into suitable soils by the application of ameliorative measures. Permanently not suitable soils account for only 0.6% of agricultural land. The principal source of irrigation water is the River Drava, which is characterized by maximum discharges during dry periods. Thus, from the water source aspect, the county has a high irrigation potential since sufficient amounts of irrigation water are available in dry periods. Required amounts of water vary in dependence on crops grown and on precipitation. At the long-term precipitation average, maximum amounts of water were recorded for tomato (84.6 mm), while the smallest amounts of water were determined for cabbage and kale (34.9 mm). Water requirements were on average two to three times higher in dry years. The highest water requirement was determined for sugar beet (181.4 mm), and the lowest again for cabbage and kale (123.0 mm). The studied example of Virovitica-Podravina County allows the conclusion that there are great requirements as well as great potentials for irrigation in the River Drava basin, and that the available resources should be exploited for further agricultural development.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA