Abstract
The purpose of the study was to evaluate the influence of an application of different rates of composite mineral fertilizers and their combination with bacterial inoculants (N-fixing Klebsiella planticola and Enterobacter spp.) on chemical composition and yield of the maize green biomass (without spikes) on acid Eutric Cambisol during the two growing seasons: 2006 and 2008. Unfertilized soil was used as a control. The contents of nitrogen, phosphorus, potassium and crude proteins in biomass samples were determined three times during the maize vegetation season, as follows: stage of intensive growth, milk-waxy maturity stage and full maturity stage. Measuring of the green biomass yield was carried out at the end of the vegetation. The results of the study showed that the use of high rates of composite mineral fertilizers and their combination with bacterial inoculants resulted in increased contents of nitrogen, phosphorus, potassium and crude proteins in the maize biomass during the both study years, which was noticeably observed in the stage of intensive growth. The highest increase in the biomass yield was obtained by the same mentioned treatments, although the combination of bacterial inoculants and lower rates of mineral fertilizers resulted in higher yields comparing to the application of lower rates of the pure mineral nutrients. The data suggest that the studied bacterial inoculants can be used in further investigations as the potential agents of new biofertilizers for improved maize production and other agriculture crops in animal nutrition. [Projekat Ministarstva nauke Republike Srbije, br. TR-37006] <br><br><font color="red"><b> This article has been retracted. Link to the retraction <u><a href="http://dx.doi.org/10.2298/BAH1704493E">10.2298/BAH1704493E</a><u></b></font>
Highlights
Along with wheat, maize (Zea mays L.) represents a major crop in agricultural production in Serbia, where its cultivation occupies an area of about 1.300.000 ha with an average yield of 5.00 to 6.00 t ha-1 (Jocković et al, 2005)
E Abstract: The purpose of the study was to evaluate the influence of an application of different rates of composite mineral fertilizers and their combination
R suggest that the studied bacterial inoculants can be used in further investigations as the potential agents of new biofertilizers for improved maize production and other agriculture crops in animal nutrition
Summary
Maize (Zea mays L.) represents a major crop in agricultural production in Serbia, where its cultivation occupies an area of about 1.300.000 ha with an average yield of 5.00 to 6.00 t ha-1 (Jocković et al, 2005). The great importance of maize stems primarily from the diversity of its use, yield potential, opportunities in achieving high yields of grain and silage and in conditions without irrigation, and from the fact that it is the basic ingredient in livestock feed. According to the quantity of organic matter produced per hectare, together with sugar beet the maize occupies first place in agriculture production, surpassing all other cultivated plant species (Latković, 2010). Grain is an important concentrated livestock feed, especially for fattening. The whole plant is used for making silage as a high quality food and provides more fodder units than
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