Quality and quantity transformations of nitrogen substances in maize silage with added urea and organozeolite | Promene kvaliteta i kvantiteta azotnih materija u silažama kukuruza sa dodatkom uree i organozeolita
2006
Đorđević, N., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Grubić, G., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Adamović, M., Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, Beograd (Serbia) | Stojanović, B., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Lalović, M., Poljoprivredni fakultet, Istočno Sarajevo, Republika Srpska (Bosnia and Herzegovina)
In this experiment the influence of urea and organozeolite addition on quality and quantity of nitrogen fractions, chemical composition and quality of maize plant silages was investigated. The experiment was organized as a two factorial, where first factor (A) was addition of urea (a1=0; a2=5 g/kg; a3=10 g/kg green mass) and second factor (B) was addition of organozeolite (b1=0; b2=2 g/kg green mass). Results of chemical analyses showed that with the addition of urea there was a significant increase in the amount of crude, ammonia and soluble nitrogen, and decrease in the amount of true protein nitrogen. Under the influence of urea and organozeolite there were significant variations in absolute values for lactic, acetic and butyric acid. At the same time the relative ratio of organic acids was similar, and therefore all silages were ranked as 1st quality class according to Flieg scoring system.
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