Magiri, Esther Nkirote; Ouma, Shellemiah Otieno; Matiru, Viviene N.; Mugweru, Julius; Ngamau, Catherine N.
(THE INTERNATIONAL JOURNAL OF SCIENCE & TECHNOLEDGE, 2014)
Nitrogen is a major nutrient element required by crops and its scarcity in soil adversely affects crop yield. Application of
inorganic nitrogenous fertilizers is costly, causes environmental pollution and leads to poor ...