engleski

Weather conditions impacts on maize yields in Vukovar-Syrmium County (Croatia)

Fluctuations of field crops yields in Croatia among years are relative high as result of environmental conditions differences during the individual growing season. In general, the higher and good distributed precipitations as well as lower air-temperatures during three summer months (June-August) are more favorable for maize. Aim of this study was testing of precipitation and temperature regime influences (the data of State Hydrometerological Institute) on maize yields (the data of State Bureau for Statistics) in the Vukovar-Syrmium County (VSC) for 3-year period 2005-2007. The growing season 2007 was unfavorable for maize growing. Water shortage in combination with high air-temperatures, especially during the summer months, is main reason for yield loss. For example, under more favorable conditions of 2005 precipitation in three-month period in Gradiste close to Zupanja (June-August) was 364 mm or close to twofold in comparison with the long-term mean. At the same period, mean air- temperature was for 0.5 oC higher. However, under unfavorable conditions of 2007, precipitation at the same period was about third part lower and air-temperature for even 2.2 oC higher As result of these conditions are average yields of maize in VSC 8.38 t/ha and 5.39 t/ha, for 2005 and 2007, respectively.

Precipitation ; air-temperatures ; maize yield ; Vukovar-Syrmium County

rad je izrađen pod mentorstvom prof. dr. Vlade Kovačevića (voditelj Projekta)