How to cite this article
APA /
Nweke, I. A., Mbah, C. N., Oweremadu, E. O., Dambaba, N., Orji, E. C., Ekesiobi, A. I., & Nnabuife, E. L. C. (2017). Soil pH, available P of an ultisol and castor performance as influenced by contrasting tillage methods and wood ash. African Journal of Agricultural Research, 12(8), 606-616.
Chicago /
Nweke, I. A., Mbah, C. N., Oweremadu, E. O., Dambaba, N., Orji, E. C., Ekesiobi, A. I. and Nnabuife, E. L. C.. "Soil pH, available P of an ultisol and castor performance as influenced by contrasting tillage methods and wood ash." African Journal of Agricultural Research 12, no. 8 (2017): 606-616.
MLA /
Nweke, et al. "Soil pH, available P of an ultisol and castor performance as influenced by contrasting tillage methods and wood ash." African Journal of Agricultural Research 12.8 (2017): 606-616.