Effect of cyanobacteria (cyanophyta) on the properties of different soil types in the Vojvodina province

Abstract

To examine the effect of cyanobacteria on the properties of different soil types of the Vojvodina Province soil samples were inoculated with a mixture of two cyanobacteria cultures. The experiment was conducted in greenhouse. It included two treatments, With and Without cyanobacteria. Each experiment unit (soil genetic horizon of layer) was replicated four times. It may be concluded on the basic of the obtained results that the cyanobacteria did not have a pronounced effect on the water-physical and basic chemical properties of the soils. Increases in the content of mineral nitrogen in all soil horizon and layers were observed. Soil inoculation with cyanobacteria decreased the level of electric conductivity in saturated water extract (Amo,p subhorizon in chernozem and Aoh,na/E horizon) and the content of Na in saturated water extract (Aoh,na/E horizon in solenetz).

U cilju istraživanja uticaja cijanobakterija na promené svojstava različitih tipova zemljišta Vojvodine. Uzorci ispitivanih genetičkih horizonata i slojeva zemljišta su inokulisani inokulumom koji je predstavljao združenu kulturu cijanobakterija. Ogled je postavljen u stakleniku u dva tretmana (inokulisano cijanobakterijama i kontrola), u četiri ponavljanja. Na osnovu rezultata ogleda može se zaključiti da uticaj cijanobakterija na vodno fizička i većinu osnovnih hemijskih osobina zemljišta nije bio izražen. Zabeleženo je povećanje sadržaja mineralnog azota u svim genetičkim horizontima i slojevima ispitivanih zemljišta inokulisanog tretmana u odnosu na kontrolni. Inokulacija zemljišta cijanobakterijama je kod nekih genetičkih horizonata uticalo na statistički značajno smanjenje vrednosti električne provodljivosti u saturisanom vodnom ekstraktu (Amo,p podhorizonta černozema i Aoh,na/E horizonta solonjeca) i sadržaja Na+ jona vodnog ekstrakta (Aoh,na/E horizonta solonjeca).