Yield and water use efficiency of irrigated soybean in Vojvodina, Serbia
2012
Pejić, B., Faculty of Agriculture, Novi Sad (Serbia) | Bošnjak, Đ., Faculty of Agriculture, Novi Sad (Serbia) | Mačkić, K., Faculty of Agriculture, Novi Sad (Serbia) | Rajić, M., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Josipović, M., Agricultural Institute Osijek, Osijek (Croatia) | Jug, I., Faculty of Agriculture, Osijek (Croatia) | Maksimović, L., Institute of Field and Vegetable Crops, Novi Sad (Serbia)
Research was carried out at Rimski Šančevi experiment field of Institute of Field and Vegetable Crops in Novi Sad, Serbia during the period 1993-2004. The experiment included an irrigated and non-irrigated control treatment. Irrigation water use efficiency (Iwue) and evapotranspiration water use efficiency (ETwue) were determined in order to assess the effectiveness of irrigation on soybean yield. The average yield increases of soybean due to irrigation practice was 0.82 t/ha, ranging from 2.465 t/ha in years with limited precipitation and higher than average seasonal temperatures (2000) to 0 t/ha in rainy years (1996, 1997, 1999). Evapotranspiration water use efficiency (ETwue) of soybean ranged from 0.11 kg/cubic meter to 1.36 kg/cubic meter with an average value of 0.66 kg/cubic meter, while irrigation water use efficiency (Iwue) varied from 0.11 kg/cubic meter to 1.04 kg/cubic meter with an average value of 0.56 kg/cubic meter. Effect of irrigation on yield of soybean and results of both ETwue and Iwue which were similar to those obtained from the literature indicate that irrigation schedule of soybean in the study period was properly adapted to plant water requirements and water-physical soil properties. Determined values of ETwue and Iwue could be used for the planning, design and operation of irrigation systems, as well as for improving the production technology of soybean in the region.
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