Agrochemical properties of a calcareous chernozem soil after long-term application of mineral and organic fertilizers
2000
Zarkovic, B. | Blagojevic, S. | Stevanovic, D. (Faculty of Agriculture, Belgrade - Zemun (Yugoslavia))
The purpose of this paper was to determine the effect of long-term application of mineral and organic fertilizers (cattle manure and cornstalks) on some important agrochemical properties of a calcareous chernozem soil. For this purpose soil samples were taken from an experimental field of the Maize Research Institute in Belgrade (Yugoslavia). There were six variants in the experiment and one of them was the control, i.e. variant without application of mineral and organic fertilizers. Basic agrochemical properties of the investigated soil samples were determined by standard methods of soil chemical analysis. Application of fertilizers did not cause statistically significant changes in soil pH, calcium carbonate content and C/N ratio. However, the content of humus and total nitrogen increased significantly in all variants where organic fertilizers had been applied. Contents of available phosphorus and potassium increased in all fertilized variants.
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