Microbiological properties of soils in natural grasslands
2007
Milosevic, N., Institut za ratarstvo i povrtarstvo, Novi Sad (Serbia) | Tintor, B., Institut za ratarstvo i povrtarstvo, Novi Sad (Serbia) | Dozet, D., Institut za ratarstvo i povrtarstvo, Novi Sad (Serbia) | Cvijanovic, G., Institut za kukuruz Zemun Polje, Beograd - Zemun (Serbia)
Microbiological and basic agrochemical soil properties (0-30 cm) in natural grasslands have been examined in four locations, three in the location Pester, at the altitudes between 1176 and 1342 m, and one in Bogovadja, at the altitude of 123 m. The soils in the examined locations were slightly acid (pH 5.32 - 6.31), with a high humus content (3.20 - 8.74%). The tested soils had low phosphorus contents. Potassium contents were higher, especially in the location of Pester at 1237 m a.s.l. In spite of a high total number of microbes, Azotobacter sp. could not be found in the examined soils. Ammonifiers and free nitrogen-fixing bacteria were registered in high populations. Physico-chemical soil properties considerably affected the numbers of fungi and actinomycetes. The acid reaction of the soils was probably the reason for a high population of fungi and a low population of actinomycetes. The highest value of dehydrogenase activity (1042 microgram TPF/g of soil) was obtained in the highest location in Pester, the lowest in the location of Bogovadja.
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