engleski

Precipitation and temperature regimes as a factor of maize and wheat yields in Posavina canton (Federation of B&H, Bosnia and Herzegovina)

Maize and wheat are the most widespread field crops in FB&H. In the last decade maize and wheat harvested area covering about 24% and 11%, of total arable lands area of FB&H, respectively. A great share of that production belongs to Posavina Canton, although it is the smallest one. The aim of this study was testing the impacts of weather conditions, primarily precipitation and air temperature regimes, on maize and wheat yields in FB&H and Posavina Canton during 2000-2009 decade period. Average maize yield was by 0.93 t ha-1 and wheat yield by 0.65 t ha-1 higher in Posavina Canton than in Federation. Considerable variation of grain yields among years is observed. Maize yield in Posavina Canton ranges from 3.72 to 6.06 t ha- 1, while wheat yield fluctuated from 2.15 to 4.63 t ha-1. On average, yields of these crops were higher for more than 20 % in Posavina Canton than in FB&H. Crops yields were highly dependent on weather. In dry and warmer growing seasons the lowest maize yield was achieved, while wheat yield reducing, beside drought and too high temperatures, could be consequences of water surplus. In the observed decade period, growing season 2003 is marked as the least favourable for both, maize and wheat growing.

Precipitation ; air-temperatures ; maize yield ; wheat yield ; Posavina canton

Rad je izrađen pod mentorstvom prof. dr. Mirte Rastija (suradnica na Projektu)