Biometrical Letters Vol. 52(2), 2015, pp. 115-130
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EVALUATION OF THE USABILITY OF SINGLE EXTRACTORS IN CHEMICAL ANALYSIS OF COMPOSTS USING PRINCIPAL COMPONENT ANALYSIS Monika Jakubus1, Małgorzata Graczyk2 1 Department of Soil Science and Land Protection, , Poznan University of Life Sciences Szydłowska 50, 60-656 Poznań, Poland, e-mail: monja@up.poznan.pl 2Department of Mathematical and Statistical Methods, Poznan University of Life Sciences Wojska Polskiego 28, 60-637 Poznań, Poland, e-mail: magra@up.poznan.pl |
The usability of various single extractors in the chemical analysis of composts was evaluated using principal component analysis. Ten different single extractors were used to determine the contents of microelements obtained in the chemical extraction of four different composts. It was found that principal component analysis is a satisfactory statistical method enabling the comparison of different solutions in terms of efficiency of extraction of microelements from composts of different composition. The results showed that 1mol dm-3 HCL and 10% HNO3 solutions had the highest extraction strength, and 0.01mol dm-3 CaCl2 and 1mol dm-3 NH4NO3 the lest.
composts, microelements, principal component analysis, single extractors
