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  • Author or Editor: Ivica Liović x
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Influences of irrigation rates and N fertilization on soybean grain yield and N leaching were tested under field conditions on Osijek, during the growing seasons 2001, 2003 and 2005 (A). The irrigation started on level of 80% field water capacity, A1 (FWC) and at level of 65% FWC, A2 and irrigate up to FWC, and non-irrigated, A3. Increased rates of N: 0, B1; 100, B2 and 200 kg N ha −1 , B3 were applied. The experiment was conducted by split-plot method. Ebermeier’s lysimeters (open type: 80 × 80 × 10 cm) were conducted for collecting leachate for measuring nitrogen leaching. The soybean grain yield showed statistical very significant differences in growing season, irrigation and interaction of growing season and irrigation. Mean leaching NO 3 -N varied from 0.32 kg N ha −1 to 7.88 kg N ha −1 in year 2001, while were greater in year 2005 and varied form 2.41 kg N ha −1 to 23.71 kg N ha −1 .

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Cereal Research Communications
Authors: Ivica Liović, Vlado Kovačević, Miroslav Krizmanić, Anto Mijić, and Branimir Šimić
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Cereal Research Communications
Authors: Marko Josipović, Antun Jambrović, Hrvoje Plavšić, Ivica Liović, and Jasna Šoštarić
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Cereal Research Communications
Authors: Anto Mijić, Miroslav Krizmanić, Ivica Liović, Zvonimir Zdunić, and Sonja Marić

The objective of the investigation was testing of sunflower hybrids in different environmental conditions. Trials were set up at three locations (Osijek —Eastern Slavonia county, Karanac — Baranja county, and Feričanci — Western Slavonia county) during the 2002 and 2003 growing season. Fourteen sunflower hybrids were tested. Stability and adaptability analysis was performed using two parameters — regression coefficient (b i ) and deviations mean square (s 2 di ). Determined were hybrids characterized by high and stable grain yield and wide general adaptability and hybrids for low and high yielding environments. The investigation showed no significant differences among single cross and three-way cross hybrids regarding grain yield stability.

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