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Table 1 Ranges of soil properties for the on-farm trial fields in Doggoh and Bompari communities in the Upper West Region of Ghana

From: Tillage and fertilizer effect on maize and soybean yields in the Guinea savanna zone of Ghana

Soil property

Location

Doggoh

Bompari

pH (1:2.5)

5.8–6.0

4.9–6.8

SOM (g kg−1)

0.92–1.42

0.53–1.42

Total N (g kg−1)

0.03–0.04

0.02–0.04

Extractable P (mg kgkg−1)

6.5–7.7

2.7–7.5

Extractable K (mg kg−1)

55.5–79.5

32.9–95.0

Extractable Ca (cmol (+) kg−1)

1.28–2.08

1.28–2.64

Extractable Mg (cmol (+) kg−1)

0.69–0.98

0.55–0.87

Sand (%)

89.6–93.6

93.7–97.8

Silt (%)

1.7–3.6

0.5–2.8

Clay (%)

4.7–6.7

2.1–4.8