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Humic nitisols (2) |
Labile inorganic phosphorus (2) |
Occluded phosphorus (2) |
Phosphate rock (2) |
Tithonia diversifolia, and manure (2) |
Humic nitisols (2) |
Labile inorganic phosphorus (2) |
Occluded phosphorus (2) |
Phosphate rock (2) |
Tithonia diversifolia, and manure (2) |