Soil Fertility, Phosphorus Fractions, and Maize Yield as Affected by Poultry Manure and Single Superphosphate

Table 5

Phosphorus fractions of the soil before planting (mg kg⁻¹).

Phosphorus fractions (mg kg^−1)
Total P	272.84
Organic P	45.90
Fe-P	33.39
Occluded P	33.39
Residual P	16.16