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ORIGINAL PAPER
Quality assessment granular ammonium nitrate mineral fertilizer
Journal of Research and Applications in Agricultural Engineering 2010;55(1):55-58
KEYWORDS
ABSTRACT
Physical properties of commercial fertilizers play important role from precision application point of view. Granulometric evaluation is usually performed by sieve separation according ČSN 01 50 30 standard. The main subject of this work is the presentation of separation results when vertical airflow is used. The studies suggest that the average critical velocity is 13,43 mźs-1, standard deviation 3,69 mźs-1, and the coefficient of variation of 0.28%
REFERENCES (5)
1.
Bartoš V., Waradzin, W. 1981. K problematike hodnotenia granulovaných hnojív. Agrochémia, 21, 220 s.
2.
Csizmazia Z. 2000. Some physical properties of fertilizer. In: Proc. 11th Int. Conf. and Exibition of Mechanization of Field Experiments. Debrecen. University Debrecen, s.219-226.
5.
Svatošová L., Hříbal J., Volma M. 2000. Systém SAS - příručka pro uživatele, ČZU Praha.
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| eISSN: | 2719-423X |
| ISSN: | 1642-686X |
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