engleski

Naknadni učinak kalcizacije karbokalkom na prinos zrna kukuruza

The aim of this study was to examine subsequent effects of carbocalk liming on soil characteristic, maize yield components and grain yield. For this study the field experiment (Sopje, Virovitica-Podravina County) was established on an acidic planosol (pH(KCl)=3.42) amended once in 2000 with increasing rates of air–dried carbocalk (0, 15, 30, 45 and 60 t ha-1). Even though liming in 2000 increased maize grain yield in 2013 growing season as compared to the control, the highest maize grain yield of 5.42 t ha-1 was achived with liming at 30 t ha-1 carbocalk, whereas the lowest maize grain yield (4.39 t ha-1) of limed treatments was at 60 t ha-1 carbocalk. The highest decrease of soil acidity in 2013 for 3.41 pH units as compared to the control, was at 60 t ha-1 carbocalk in 2000. Increasing carbocalk doses in 2000 had a subsequent effect on increase of P and decrease of K availability in 2013.

liming ; carbocalk ; maize ; pH ; yield

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