Comparative effect of farmyard manure, cowpea residues and NPK Fertilizer on maize grain yield in Morogoro
Date of publication:
2010
inorganic fertilizers
Factors Influencing Levels of Knowledge in Soil Fertility Management in the Central Highlands of Kenya
Date of publication:
2012
Short-Term Effects of Soil Fertility, Tillage and Residue Management on Soil Organic Carbon, Aggregate Stability and Water Infiltration on a Sandy Soil in Urban Agriculture, Harare
Date of publication:
2012
