The ways to provide the necessary nutrients to ensure beautiful and healthy sunflower
Growing method: open field.
Plant density: 160,000-240,000 / Ha.
Expected yield: 3-5 Ton / ha.
|
Main nutrients uptake (Kg/Ha) |
|||||
|---|---|---|---|---|---|
|
N |
P2O5 |
K2O |
CaO |
Mg |
B |
|
120-140 |
80-100 |
350-400 |
210 |
70 |
0.4 |
Nutrition recommendation
|
N |
AN* |
P2O5 |
SSP |
K2O |
Multi-K |
B |
Borax |
|---|---|---|---|---|---|---|---|
|
Kg/Ha |
Kg/Ha |
Kg/Ha |
Kg/Ha |
||||
|
60-70 |
80-85 |
80-100 |
400-500 |
120-150 |
260-320 |
0.4 |
3.5 |
*AN = Ammonium nitrate
SSP = Single Superphosphate
Multi-K = Potassium nitrate
Borax = Sodium tetraborate decahydrate
Top-dressing
Should be applied at developmental stage of 8-10 leaves, to stem diameter of 15 mm.
|
N |
AN* |
P2O5 |
SSP |
K2O |
Multi-K |
B |
Borax |
|---|---|---|---|---|---|---|---|
|
Kg/Ha |
Kg/Ha |
Kg/Ha |
Kg/Ha |
||||
|
60-70 |
80-85 |
80-100 |
400-500 |
120-150 |
260-320 |
0.4 |
3.5 |
Foliar spraying:
Multi-KB (12-0-42+0.5%B) should be applied at 20 – 50% of flowering at 5-8 kg/ha as a 3% solution, at 150-200 liter/ha. The total amount is more important than the percentage and the solution volume. The Multi-KB can be combined with any pesticide/fungicide needed at this timing.
Fertilization of sunflower (seed)
Macro elements removed by 1 ton marketable product
|
N |
P |
K |
Ca |
Mg |
S |
|---|---|---|---|---|---|
|
---------------------------------------------------Kg / ha----------------------------------------- |
|||||
|
25.0 |
2.0 |
9.0 |
4.0 |
3.0 |
4.5 |
Plant analysis guide
Nutrient sufficiency ranges (source: A & L, Agronomy Handbook, Ankerman & Large Eds.)
| Sunflowers |
N |
S |
P |
K |
Mg |
Ca |
Na |
B |
Zn |
Mn |
Fe |
Cu |
Al |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
------------------------ % ------------------------- |
--------------- p.p.m --------------- | ||||||||||||
| From |
3.40 |
0.25 |
0.26 |
2.50 |
0.37 |
1.10 |
0.01 |
25 |
20 |
50 |
60 |
6 |
50 |
| To |
4.00 |
0.35 |
0.35 |
3.20 |
0.90 |
1.50 |
0.02 |
40 |
35 |
100 |
200 |
10 |
100 |
Need more information about growing sunflower? You can always return to the sunflower fertilizer.
