Evaluating the effects of formulated nano-NPK slow release fertilizer composite on the performance and yield of maize, kale and capsicum

The current study evaluated the response of maize, kale and capsicum to a formulated slow release NPK fertilizer [cellulose-graft-poly(acrylamide)/nano-hydroxyapatite/soluble fertilizer] composite to establish their agronomic optimal application rates in a nitisol soil group in Kabete, Kiambu county, Kenya.