Joseph K. Macharia

Influence of Amendments Added to Acid Soils on Biochemical Properties, Nitrogen Uptake and Hybrid Maize Yields in Nakuru County, Kenya

Joyce J. Lelei, Richard N. Onwonga & Joseph K. Macharia · International Journal of Plant & Soil Science · 2014

Aim: The current study investigated effect of soil amendments; lime (L), manure (FYM) and minjingu phosphate rock (PR) added to soils on soil microbial biomass carbon and nitrogen (SMB-C and SMB-N), available soil nitrogen (N), crop N uptake and grain yields of two maize hybrids...

Open access Research Article 10.9734/IJPSS/2014/7817

Comparative Effects of Soil Amendments on Phosphorus Use and Agronomic Efficiencies of Two Maize Hybrids in Acidic Soils of Molo County, Kenya

Richard N. Onwonga, Joyce J. Lelei & Joseph K. Macharia · Journal of Experimental Agriculture International · 2013

 The deficiency of P and the shortened growing seasons due to climate change are identified constraints in the production of commonly grown long maturing maize hybrid (H614) in the acid soils of Molo County, Kenya. The current study therefore investigated (i) the effect of soil a...

Open access Research Article 10.9734/AJEA/2013/4380