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Pioneering the Future

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Fertilization recommendation for growing sunflower

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