Available K
Available K is this this season’s available nitrogen, not potassium in the rock.
Speed
- Available K。
- Available K is this this season’s available nitrogen, not potassium in the rock.。
- K the crop can use this season. Sand, high yield, straw removed — often low.。
- K the crop can use this season. Sand, high yield, straw removed — often low.。
How it appears on the sheet
K the crop can use this season. Sand, high yield, straw removed — often low.
A sketch. Do not fertilise from the picture alone.Common units
Often mg/kg.
How to read the number
K the crop can use this season. Sand, high yield, straw removed — often low. Margin scorch is not only K. Read available K, and salt Easy to mix up: High total K, low available K: warehouse full, plate empty Available K is this this season’s available nitrogen, not potassium in the rock.。
Thresholds only, not a prescription. Rates live in the field guide. This page does not hand you a bag count.
What it looks like in the field
K the crop can use this season. Sand, high yield, straw removed — often low.
Don’t do this
- Every scorch gets potassium, salt unasked.
- High-yield fields that never return straw.
- High total K, low available K: warehouse full, plate empty.