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Humic nitisols (1) |
Labile inorganic phosphorus (1) |
Occluded phosphorus (1) |
Phosphate rock (1) |
Tithonia diversifolia, and manure (1) |
Humic nitisols (1) |
Labile inorganic phosphorus (1) |
Occluded phosphorus (1) |
Phosphate rock (1) |
Tithonia diversifolia, and manure (1) |