From: Resource use efficiency among maize farmers in Ghana
Variable
Efficiency gap
% divergence from optimal levels
Fertilizer
2.6
70.3
Herbicide
82.1
89.6
Pesticide
62.1
86
Seed
49.7
94.7
Labour
2.5
20.8
Manure
186.69
99.9
Land
1037.6
97.2
Capital
10.54
81.7