Groups

Farm

Kinks of land

Local variable knowledge

Scientific knowledge variables

Group 1

E23

Black land

Quality, color, location, texture, organic matter, yield, biological activity, fertility, rooting, moisture retention, nutrient availability, pH, drainage, effective depth, associated species benefits

Al medium, K high, pH medium, B low, CIC medium, Fe high, Cu medium, P medium, Zn low, Texture A

Group 2

E35

Gravelly land

Quality, color, location, texture, organic matter, species association, organic matter, yield, fertility, moisture retention, nutrient availability

Low Al, high K, high pH, high B, low B, medium CEC, medium Fe, low Cu, low P, low Zn, FAa Texture

Group 3

E32

Black land

Quality, color, location, texture, yield, yield, fertility, moisture retention, nutrient availability

Al low, K high, pH high, B medium, CIC medium, Fe medium, Cu medium, P low, Zn medium, Texture FA