Available S
Available S is sulphur the crop can use now. Urea itself has none.
Speed
- Available S。
- Available S is sulphur the crop can use now. Urea itself has none.。
- S pales the whole plant, including new leaves — the opposite of nitrogen’s old-leaf yellow.。
- S pales the whole plant, including new leaves — the opposite of nitrogen’s old-leaf yellow.。
How it appears on the sheet
S pales the whole plant, including new leaves — the opposite of nitrogen’s old-leaf yellow.
A sketch. Do not fertilise from the picture alone.Common units
Available S often mg/kg.
How to read the number
S pales the whole plant, including new leaves — the opposite of nitrogen’s old-leaf yellow. Sulphur does not move from old to new leaves. Sand and years of urea-only show it more Easy to mix up: N yellows old leaves while new stay greener; S takes the new leaves with it. Leaf position is the split Available S is sulphur the crop can use now. Urea itself has none.。
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
S pales the whole plant, including new leaves — the opposite of nitrogen’s old-leaf yellow.
Don’t do this
- New-leaf yellow chased with urea.
- Years of one nitrogen source that has no sulphur.
- N yellows old leaves while new stay greener; S takes the new leaves with it. Leaf position is the split.