Soil Organic Carbon Increases with Nitrogen Fertilizer Applications in the High Potential Maize ( Zea mays ) Zone of Kenya Manuscript Number2025/AJSSPN/147259 JournalAsian Journal of Soil Science and Plant Nutrition AuthorsK. C. Oluoch, R. Njoroge, A. N. Otinga, G. Owuor, S. Mutua Back to Journal