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Table 1 Soils characteristics in the 0–20 cm soil depth of five sites under trial in 2012 in Cinzana commune, Mali

From: Optimizing yield of improved varieties of millet and sorghum under highly variable rainfall conditions using contour ridges in Cinzana, Mali

Sites Sorobougou N’Gakoro Moussawere Tongo Dougakoungo
pH (water) 5.75 6.54 6.44 6.50 6.48
pH (KCl) 4.04 5.10 4.44 5.37 5.34
OC (g kg−1) 3 4 4 5 6
Total N (g kg−1) 0.2 0.03 0.2 0.4 0.05
P av (ppm) 5.32 4.20 1.96 3,75 3,67
CEC meq 100 g−1 5.80 5.80 4.35 4.40 4,65
Ca meq 100 g−1 3.86 1.58 1.58 1.41 1.18
Mg meq 100 g−1 1.80 0.95 0.84 0.81 0.77
K meq 100 g−1 0.41 0.13 0.15 0.16 0.18
Na meq 100 g−1 0.03 0.03 0.03 0.02 0.04
Sand % 0.05 mm 92 89 92 90 92
Silt % 0.05–0.002 mm 4 9 4 8 6
Clay % 0.002 mm 4 2 4 2 2