Working Document Series Open Access Farmer - managed trials for evaluation of rhizatech and legumefix in Bungoma district Kenya C. Majengo · W. Ngetich · J.R. Okalebo · C.O. Othieno The nitrogen reserve of agricultural soils must be replenished periodically in order to maintain an adequate level for crop production. This replacement of soil nitrogen is generally accomplished by the addition of fertilizers or as produc… RUF-34615 2010 CC BY 4.0 8 Sep 2015
