Wheat Fertilization and Nutrition Diagnosis
FAQ
Q: When is topdressing most critical?
The jointing stage drives tiller survival and spike number; the flag-leaf stage supports grain filling. Nitrogen at these two points decides both yield and protein.
Q: How to read deficiency?
Chlorosis patterns, tiller count and soil/leaf tests guide diagnosis. Zinc and boron deficiencies are common on calcareous and leached soils.
Key Points
Base N-P at sowing
Jointing: secure spike number
Flag leaf: support grain fill
Zn, B on calcareous/leached soils
Quick Reference
| Base | N-P at sowing |
| Jointing | Spike number |
| Flag leaf | Grain fill |
| Micro | Zn, B |
Product note: Huasheng Jinma zinc/boron products support wheat on deficient soils.