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WEATHER CONDITIONS IN THE 2013 -2015 GROWING SEASONS FOR MAIZE IN CROATIA AND BOSNIA AND HERZEGOVINA

2016; Volume: 1; Issue: 1 Linguagem: Inglês

10.7251/agreng1601095k

2490-3442

Vlado Kovačević, V. Radić, Dario Iljkić, Jurica Jović, Meho Majdančić,

Crop Yield and Soil Fertility

Maize is the main field crop on the arable lands in Croatia and Bosnia andHerzegovina (B&H). In the 2001-2010 period, maize was grown on 333,736 ha(average yield 6.50 t ha-1) in Croatia and 195,800 ha (4.42 t ha-1) in B&H. Yieldvariations among years were from 3.86 to 7.98 t ha-1 and from 2.74 to 5.13 t ha-1,respectively. Aim of this study was survey of maize yield and weather data(precipitation and mean air temperature) in Croatia and B&H in the 2013, 2014 and2015 growing seasons. Average yields of maize were 6.5, 8.1 and 6.5 t ha-1(Croatia), 4.0, 5.0 and 4.1 t ha-1 (B&H) in 2013, 2014 and 2015, respectively.The 2014 growing season was very favorable for maize growth. Precipitation andtemperature in April-September period were as follows: 520 mm and 18.2oC(Osijek), 910 mm and 17.2oC (Varazdin), 731 mm and 18.5oC (Bijeljina), 1228 mmand 18.0oC (Banja Luka). These precipitation values are higher by 41% (Osijek),75% (Varazdin and Bijeljina), and 116% (Banja Luka) compared to averages 1961-1990. In extremely unfavorable 2012 (yield 4.34 and 2.74 t ha-1, in Croatia andB&H, respectively), precipitation and temperature at the same period were 293 mmand 20.0oC (Osijek), 461 mm and 18.8oC (Varazdin), 288 mm and 21.0oC(Bijeljina), 488 mm and 20.1oC (Banja Luka). However, in 2013 and 2015, yields,precipitation and temperature regimes in both countries were more close to averagevalues. Considerable variation of precipitation in the short 2012 -2014 period andhigher temperatures are in accordance with climate change.