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International Agrophysics
publisher:Institute of Agrophysics
Polish Academy of Sciences
Lublin, Poland
ISSN: 0236-8722


vol. 25, nr. 2 (2011)

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Influence of moisture content on the angle of repose of nitrogen fertilizers
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J.J. Turan1, P.J. Findura2, I.G. Djalović3, A.D. Sedlar1, R.M. Bugarin1, T.V. Janić1
1 Department of Agricultural Engineering, University of Novi Sad, Dositeja Obradovića 8, Novi Sad, Serbia
2 Department of Machines and Production Systems, Slovak University of Agriculture, A. Hlinku 2, Nitra, Slovakia
3 Institute of Field and Vegetable Crops, M. Gorkogo 30, Novi Sad, Serbia

vol. 25 (2011), nr. 2, pp. 201-204
abstract This paper presents laboratory investigations of grain size distribution, content change, as well as the change of static and dynamic angle of repose of mineral fertilizers Carbamide (CO(NH2)2), calcareous ammonium nitrate (NH4NO3 + CaCO3, 60:40), and ammonium nitrate (NH4NO3) depending on the hygroscopic influence of environment ie on the increased moisture of the fertilizers. Using charts, the functional dependence and the statistical data were analyzed. The conclusions are satisfactory, suggesting ways to overcome the discussed problem, and motivate further investigations in this field.
keywords nitrogen fertilizers, moisture, angle of repose