engleski

Impacts of liming with fertdolomite on maize and wheat yields

The stationary field experiment with increasing rates (0, 3.5, 7.0 and 14.0 t/ha) of fertdolomite (3, 0 N + 2, 5% P2O5 + 3, 0% K2O) was started in autumn of 2011 on acid soil in Osijek-Barannya County. The experiment was arranged by the randomized block design in four replicates (basic plot 112.5 m2). Maize (2012) and winter wheat (2012/2013) were grown on the experiment.The growing season 2012 was particulary unfavorable for maize growing because of drought and high air-temperatures. Precipitation in July and August were only 52 mm or about 50% lower in comparison with the 30-year average. At the same period of 2012 average air-temperature was for 3.8 oC higher. For this reason, maize was harvested at beginning of September or three weeks before usual term. Average yield of maize in the experiment was only 2.71 t/ha as result of unfertised cobs and 65% female-sterille plants due to unfavorable weather during pollination/silking stage of maize. However, the growing seaosn 2012/2013 was relatively favorable and average yield of wheat was 7.64 t/ha. By liming with fertdolomite, grain yields of wheat were increased up to 22% and application of fertdolomite in amount of 7.0 t/ha was adequate.

liming ; grain yied ; maize ; wheat ; weather characteristics

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