How to grow sunflowers with Haifa Fertilizers

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
Sunflowers	------------------------ % -------------------------							--------------- 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