“…Organic Fertilizers -New Advances and Applications (15-15-15) At NIFOR and Ekiadolor, 300 kg/ha of maize received applications of 25% NPK + 75% OBA, 50% NPK + 50% OBA, and 75% NPK + 25% OBA. Other treatments boosted SOM, N, P, K, Ca, Mg, and pH plant nutrients, growth, and yield in comparison to controls (Table 6) [65,81]. The use of OPBA alone or in combination with urea or NPK generally led to higher soil K, Ca, and Mg concentrations, which in turn raised pH.…”