On-Farm Experimentation with Improved Maize Seed and Soil Amendments in Southern Ghana: Productivity Effects in Small Holder Farms

Figure 4

(a) Grain yield (kg ha⁻¹) of three maize varieties under different soil amendments in the coastal savannah (CSZ) and semi deciduous forest zones (SDFZ) in the major cropping season of 2017. (b) Grain yield (kg ha⁻¹) of three maize varieties as influenced by residual effects/application of soil amendments in the coastal savannah zone (CSZ) and semi deciduous forest zones (SDFZ) in the minor cropping season of 2017.

(a)

(b)