On-Farm Experimentation with Improved Maize Seed and Soil Amendments in Southern Ghana: Productivity Effects in Small Holder Farms

Table 5

Chemical properties of goat manure used for the study.

Parameters	Composition/amount
pH in (H2O) (1 : 2.5)	8.4
Organic carbon %	22.5
Total nitrogen (% N)	1.87
Total phosphorus (P %)	1.51
Total potassium (K %)	0.62
Total magnesium (Mg %)	0.53
C : N ratio	12.03
Iron (Fe %)	0.68
Zinc (Zn %)	0.0013
Copper (Cu %)	0.0068
Manganese (Mn %)	0.0301
Sodium (Na %)	0.0003

The goat manure applied at 5 t·ha⁻¹ resulted in 93.5 kg·N·ha⁻¹, 75.5 kg·P·ha⁻¹, and 31 kg·K·ha⁻¹ nutrient content (Table 5).