A study of the effects of Nitrogen , phosphorus and potassium fertilizers on the dry matter yield and chemical composition of amaranthus hybridus sub-species hybridus (green head)
Date of publication:
1980
Soil fertility
P35
Influence of trees on soil characteristics and maize productivity in small holder farms of western Kenya
Date of publication:
2013
Innovative breeding for drought tolerance and fertilizer use efficiency in maize
Date of publication:
2010
Pages
