Original scientific paper

The effect of liming with carbocalk to soil, yield and quality of maize grains

Vlado Kovačević ; Sveučilište J.J. Strossmayera u Osijeku, Poljoprivredni fakultet
Domagoj Rastija ; Sveučilište J.J. Strossmayera u Osijeku, Poljoprivredni fakultet
Rezica Sudar ; Poljoprivredni institut Osijek
Dario Iljkić ; Sveučilište J.J. Strossmayera u Osijeku, Poljoprivredni fakultet

Abstract

Stationed field experiment of liming with carbocalk (by-product of sugar factory) was set in the fall of 2000 on acid soil (pHKCl 3.89). Carbocalk was added in quantities of 0.15, 30.45 and 60 t ha-1. The experiment was set randomly in four replicates (basic plot 64.3 m2). The effects of liming were monitored continuously until the year 2012. This paper presents characteristics of the soil and reaction of maize cultivated on an experimental plot in 2010. Liming significantly increased pHKClfrom 3.75 to 6.71. Also, there was increased accessibility of phosphorus in the soil from 20.3 to 26.9 mg P2O5 100g-1, whereas the accessibility of potassium was decreased from 29.4 to 25.5 mg K2O 100g-1. Maize yield in control was 8.40 t ha-1, and liming increased it by up to 18%. In doing so, the differences in yield between four levels of added carbocalk were within limits of statistical error. Liming with 30 and more t ha-1 significantly increased the content of protein in maize grain (8.05%, i.e. 8.50%), whereas the quantity of 15 t ha-1 was also efficient in the increase of oil content (2.80%, i.e. 3.03%). The content of starch in grains was decreased by liming from 72.98% to 72.43%, but only maximum quantity of 60 t ha-1 was thereby efficient.

Keywords

liming; carbocalk; maize grain yield; soil characteristics

Hrčak ID:

163014

URI

https://hrcak.srce.hr/163014

Publication date:

19.12.2012.

Article data in other languages: croatian

Visits: 1.379 *