Krivogaštani (Pelagonia region). Average values of soil pH
were 6.5 and 6.7 for PR and SER, respectively. Average OM
content is generally low to moderate, according to soil texture
(Table 1). Available phosphorus and potassium concentrations
varied differently (Figures 2 and 3). The highest values
for available phosphorus (over 31 mg/100 g) were recorded in
municipalities of Novaci and Demir Hisar (PR), and Caška