|
NPK fertilization of the major field crops in spring |
|
|
| Plant |
Springtime basic fertilizer |
Fertilizer demand (kg/ha) |
Springtime starter fertilizer
|
Recommended amount of starter fertilizer
|
| Soil nutrient content |
| >medium |
medium |
>medium |
| Maize |
NPK 16-9-14 |
|
350-550 |
|
|
|
| NPK 20-10-10 |
|
|
350-500 |
NP 18-28 |
100-150 |
|
|
|
|
NP 20-20 |
100-150 |
| Sunflower |
|
|
|
|
NP 22-11 |
100-150 |
| NPK 16-9-14 |
|
350-400 |
|
|
|
|
|
|
|
NP 20-20 |
100-150 |
| Rape |
|
|
|
|
Top dressing: NP 22-11 |
300-400 |
|
|
|
|
Top dressing: NP 20-10 |
300-500 |
| Potato |
NPK 5-14-28 (chloride-free, sulphurous) |
|
300-400 |
250-350 |
|
|
|