Effects of drought on maize production
1997
Vasic, G. (Faculty of Agriculture, Belgrade - Zemun (Yugoslavia)) | Kresovic, B. | Tolimir, M.
In order to determine effects of the "year" on yield and precipitation on drought overcoming, weather conditions and maize production status in the traditionally arid region of the eastern Serbia (Yugoslavia) were analyzed in the present study. The 14-year mean air temperature of the growing season is higher by 1.1 deg C than the long-term mean, while the precipitation sum of the growing season decreased by 92.5 mm. The average precipitation deficit for the few recent years, in relation to the water requirements (450 mm), increased from 106 mm to 129 mm. Correspondingly, the last 10-year average maize yields varied over years and ranged from 1.22 t/ha (1993) to 4.63 t/ha (1991). Although numerous cropping practices were applied, it was determined that irrigation was the best way to mitigate drought effects, as well as negative effects of climatic factors. This was proved in both experiments and practice. The irrigation effect on maize yields obtained in experiments conducted under agroecological conditions of the Timok region (Serbia, Yugoslavia) ranged from 76.9 (1992) to 101.7 (1993).
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