Variables:

Location

Crop of interest

Other crops

Description of farming system

Farmer's experience (yrs)

Area cultivated with maize (ha)

Farm labour: land prepartion (LP), ploughing (P), sowing (S), manual weeding (W)

Form of farm labour input: manual (M), animal traction (AT), tractor (T)

Seed (kg)

Seed variety

Fertilizer (NPK 15-15-15/23-10) (kg)

Other input by farmer

Produce (kg)

Produce used for household consumption (%)

Produce sold for income (%)

other uses of biomass