Tillage and variety effects on soil moisture content, biological nitrogen fixation and soybean (Glycine max l. merril) yield in Western Kenya

A thesis submitted to the Graduate School in partial fulfilment of the requirements for the Master of Science degree in Agronomy of Egerton University

Author(s): 
John Okoth Omondi
Date: 
Wednesday, January 8, 2014
Keywords: 
Kenya, soybean, soyabean, soil moisture, tillage, no till, BNF, nitrogen, experiment, trial