Example
Old leaves yellow first, the plant is thin and tall
Farmer 4418 · 2026-04-11 · Nutrient shortage
Speed
- Old leaves yellow first, the plant is thin and tall
- Maize: lower old leaves evenly yellow, new leaves still green, stalks thin.
- Even yellow on old leaves with greener new leaves is the nitrogen pattern. New leaves yellow with green veins is iron. Wilt by day, recover at night plus standing water is waterlog. Yours looks like nitrogen. Check the roots are still white, then feed from a test — better too little than too much.
Maize: lower old leaves evenly yellow, new leaves still green, stalks thin.
Replies
Li Zeyu
Even yellow on old leaves with greener new leaves is the nitrogen pattern. New leaves yellow with green veins is iron. Wilt by day, recover at night plus standing water is waterlog. Yours looks like nitrogen. Check the roots are still white, then feed from a test — better too little than too much.