Nitrogen (N)
Nitrogen builds leaves. The word is N; the field job is leaf position.
- Nitrogen (N)。
- Nitrogen builds leaves. The word is N;。
- the field job is leaf position.。
- Too little: old leaves yellow first， new leaves greener. White roots fit N. New-leaf yellow is another road.。
- Too little: old leaves yellow first， new leaves greener. White roots fit N. New-leaf yellow is another road.。
How it appears on the sheet
Too little: old leaves yellow first, new leaves greener. White roots fit N. New-leaf yellow is another road.
A sketch. Do not fertilise from the picture alone.Common units
Total N often g/kg. Don’t mix it with available N.
How to read the number
Too little: old leaves yellow first, new leaves greener. White roots fit N. New-leaf yellow is another road. Nitrogen moves. Sand cannot hold a season in one pour. Waterlogged roots cannot eat it Easy to mix up: Sulphur yellows new leaves too; iron yellows new leaves with green veins; waterlog wilts on wet soil Nitrogen builds leaves. The word is N; the field job is leaf position.。
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
Too little: old leaves yellow first, new leaves greener. White roots fit N. New-leaf yellow is another road.
Don’t do this
- Treating new-leaf yellow as nitrogen.
- One pour on sand for the whole year.
- Sulphur yellows new leaves too; iron yellows new leaves with green veins; waterlog wilts on wet soil.