Table 1. Land use, cropping history and soil physical and chemical properties of sites in Ghana and South Africa prior to setting up of experiments.
| Soil parameter | Country | Cropping history | Land use | Texture |
pH (KCl) |
Total N | Org matter | Ca | K | Na | P | Cu | Mn | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % | mg.kg-1 | ||||||||||||||
| Kpalisogu | Ghana | Maize, fallow | Farm land | sandy loam | 4.7 | 0.05 | 0.88 | 320 | 58.5 | 9.2 | 8 | 3.90 | 31.55 | 1.50 | |
| Gbalahi | Ghana | Maize, Maize | Farm land | sandy loam | 5.1 | 0.06 | 1.09 | 640 | 46.8 | 6.9 | 7 | 3.35 | 24.8 | 2.35 | |
| Manga | Ghana | Maize, Maize | Research field | loamy sand | 4.7 | 0.05 | 0.83 | 214 | 97.5 | 11.5 | 23 | 4.60 | 17.95 | 1.40 | |
| Googo | Ghana | Maize, Maize | Farm land | sandy loam | 4.6 | 0.08 | 1.38 | 534 | 140.4 | 16.1 | 15 | 8.15 | 69.85 | 1.95 | |
| Savelugu | Ghana | Cassava, cassava | Farm land | sandy loam | 4.9 | 0.04 | 0.67 | 320 | 54.6 | 6.9 | 8 | 6.25 | 29.65 | 0.95 | |
| Morwe | South Africa | Fallow, Various crops | Research field | Loamy sand | 5.5 | 0.02 | 0.96 | 164 | 128 | 11.0 | 10 | 0.45 | 59.37 | ND | |
ND: Not determined