
By: WA Oyange, GN Chemining’wa, JI Kanya, PN Njiruh
Use of inorganic fertilizers constitutes 20% of the rice production cost in Mwea. Azolla fern, which grows in Mwea Irrigation paddies, has the potential to
supplement the nitrogen requirement, thus reducing the fertilizer costs.
A field experiment was conducted in Mwea Irrigation Scheme during 2015
long and short rains to determine the effect of Azolla
incorporation and inorganic nitrogen...