The effect of granulometric structure and moisture of fertilizer on its static strength

https://doi.org/10.17221/31/2016-RAECitation:Macák M., Krištof K. (2016): The effect of granulometric structure and moisture of fertilizer on its static strength. Res. Agr. Eng., 62: S1-S7.
download PDF
During the load of vertical static force the strength limit of individual fertilizer particles was studied in relation to the fertilizer moisture content and granulometric composition. The experiment was conducted for the fertilizer damage at the different level of fertilizer moisture content and particle size groups. The result of the first part indicates the need to point out the differences of static strength between prilled and granular fertilizers. Both types of prilled fertilizers reached from 3 to 8 times lower values of static strength than standard granular fertilizers. The theses above point out the need for more caution during manipulation, storage and application of prilled fertilizers, the quality of which may be affected at some point by the greater extent of static load. The second part of the study was focused on the effect of moisture and granulometric fraction of fertilizer on static strength of fertilizer. For all tested fertilizers the statistical difference was observed for both of variation factors. Their mutual ratio of the effect is however different for each individual fertilizer. This fact may be interpreted as the dependence of the quantity of water that the individual fertilizers are able to absorb. This amount was influenced by very different types of fertilizers’ hygroscopicity. The interaction of both factors at the same time was not confirmed for any fertilizer tested.
References:
Allaire S.E, Parent L.-E (2004): Physical Properties of Granular Organic-based Fertilisers, Part 1: Static Properties. Biosystems Engineering, 87, 79-87  https://doi.org/10.1016/j.biosystemseng.2003.09.006
 
Bielek P. (1996): Ochrana pôdy – Kódex správnej poľnohospodárskej praxe vSR. Bratislava, Ministerstvo pôdohospodárstva SR.
 
Fulton J.P., Shearer S.A., Stombaugh T.S., Higgins S.F. (2003): Comparison of variable-rate granular application equipment. In: ASAE Paper No. 031125. St. Joseph, ASAE.
 
Grift T.E., Kweon G. (2006): Development of a uniformity controlled granular fertilizer spreader. Paper No.: 061069, UIUL Number: 2006-7017. In: ASABE Meeting Presentation. American Society of Agricultural and Biological Engineers.
 
Hofstee J.W. (1993): Physical properties of fertilizer in relation to handling and spreading. [Thesis.]. Wageningen University.
 
Hofstee J.W., Huisman W. (1990): Handling and spreading of fertilizers part 1: Physical properties of fertilizer in relation to particle motion. Journal of Agricultural Engineering Research, 47, 213-234  https://doi.org/10.1016/0021-8634(90)80043-T
 
Hofstee J.W. (1992): Handling and spreading of fertilizers: Part 2, physical properties of fertilizer, measuring methods and data. Journal of Agricultural Engineering Research, 53, 141-162  https://doi.org/10.1016/0021-8634(92)80079-8
 
Jackson J. et al. (2009): UK greenhouse gas inventory, 1990 to 2007 annual report for submission under the framework Convention on Climate Change. AEA Technology.
 
Ji H.H. (2006): Moisture absorption of granular fertilizer and its distribution characteristic by a pneumatic applicator. St. Joseph, ASABE. Paper No: 061072.
 
Jobbágy J., Árvay J. (2007): Stanovenie variability zásoby živín na pozemku ako vstupných hodnôt pre variabilnú aplikáciu. In: Proceedings from IX. Medzinárodná vedecká konferencia mladých, Oct 10–11, 2007, Nitra.
 
M. Joshi , N. Giannico , R. L. Parish (2006): Technical Note: Improved Computer Program for Spreader Pattern Analysis. Applied Engineering in Agriculture, 22, 799-800  https://doi.org/10.13031/2013.22247
 
Lou J., Deklein C.A.M., Ledgard S.F., Saggar S. (2010): Estimation of nitrous oxide emission from ecosystems and its mitigation technologies. Agriculture, Ecosystems & Environment, 136: 282–291.
 
Lawrence H.G., Yule I.J. (2005): Accessing spreader performance for variable rate fertiliser application. In: ASAE Meeting Presentation. Paper No.: 051117.
 
Ložek O. (2000): Efektívnosť hnojenia vybraných poľnohospodárskych plodín priemyselnými hnojivami. Agrochémia, IV: 4–6.
 
Macák M. (2009): Vlastnosti granulovaných priemyselných hnojív a ich vplyv na funkciu rozhadzovačov z pohľadu požiadaviek presného poľnohospodárstva. [PhD Thesis.]. Nitra, SUA in Nitra.
 
Macák M. et al. (2009): Vplyv fyzikálno mechanických vlastností priemyselných hnojív na funkciu rozhadzovačov z pohľadu požiadaviek presného poľnohospodárstva. Prague, CULS Prague.
 
Macák M., Nozdrovický L. (2010): Bodová pevnosť priemyselného hnojiva v závislosti od veľkosti granulometrického zloženia a vlhkosti hnojiva. Acta Technologica Agriculturae, 12: 61–66.
 
Macák M., Nozdrovický L., Žitňák M. (2011): Vplyv granulometrického zloženia priemyselných hnojív na kvalitu práce rozhadzovača. Agrochémia, 51: 11-15.
 
Michalík I. (2010): Rozporné názory na aplikáciu priemyselných hnojív v podmienkach ekologického pestovania plodín. Agrochémia. 50: 25–26.
 
Nozdrovický L., Macák M., Findura P. (2009): Vplyv granulometrického zloženia priemyselných hnojív na priečnu rovnomernosť aplikácie. In: New Trends in Design and Utilisation of Machines in Agriculture, Landscape Maintenance and Environment Protection: Proceedings of the International Scientific Conference, Prague, May 5–7, 2009: 210–218.
 
Richter R., Hlušek J. (1996): Průmyslová hnojiva, jejich vlastnosti a použití. Prague, IVV MZe ČR.
 
Srivastava A.K., Goering, C.E., Rohrbach R.P. (1993): Chemical application. In: Engineering Principles of Agricultural Machines. St. Joseph, ASAE: 265–314.
 
J. T. Walker , T. E. Grift , J. W. Hofstee (1997): DETERMINING EFFECTS OF FERTILIZER PARTICLE SHAPE ON AERODYNAMIC PROPERTIES. Transactions of the ASAE, 40, 21-27  https://doi.org/10.13031/2013.21239
 
download PDF

© 2021 Czech Academy of Agricultural Sciences | Prohlášení o přístupnosti