Figure 5

Soil available K affected by tillage treatments, 0–30 cm (a) Soil available K over 0–10 cm depth. (b) Soil available K over 10–20 cm depth. (c) Soil available K over 20–30 cm depth.

Soil available K affected by tillage treatments, 0–30 cm (a) Soil available K over 0–10 cm depth. (b) Soil available K over 10–20 cm depth. (c) Soil available K over 20–30 cm depth.