Folia Horticulturae

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Application of extraction with 0.03 M CH3COOH as the universal method in orchard soil analysis

Iwona Domagała-Świątkiewicz

Department of Soil Cultivation and Fertilization in Horticulture
Agricultural University in Kraków
29 Listopada 54, 31-425 Kraków, Poland
e-mail: iwonadom@ogr.ar.krakow.pl

Investigations were carried out in 2002-2003 in six apple tree orchards localized on the heavy soils. Egner-Riehm’s (P and K) and Schachtschabel’s (Mg) methods of soil analysis were compared with common extraction with 0.03 M CH3COOH (universal method). Significant correlations between the compared methods of analyses were found. The highest correlation coefficient was calculated in the case of K (r = 0.83 at significance level 0.05), for P and Mg this values were 0.65 and 0.45, respectively. By using the universal method 44.1% P and 35.4% K (on average) extracted from the soil by calcium lactate (Egner-Riehm method) and 40.3% Mg soluble in Schachtschabel’s extract were estimated. According to the obtained results the universal method can be applied for estimation of the nutrient needs of the orchard plants, however, the temporary ranges of soil abundance in the available phosphorus, potassium and magnesium as well as the fertilizer doses proposed for them by Nowosielski (1988) should be verified.

Domagała-Świątkiewicz I., 2005. Application of extraction with 0.03 M CH3COOH as the universal method in orchard soil analysis. Folia Horticulturae 17/2: 129-140.