Basic assumptions for the following fertilization programs:
- Growing medium: Open field
- Soil type: Light to medium
- Expected yield: 65 MT/Ha (85% moisture)
Kilograms of macro nutrients removed by 1 ton marketable product:
N | P2O5 | K2O | CaO | MgO | S |
3.0-4.0 | 1.3-1.8 | 2.5-5 | 1.0 | 0.5 | 1.8-2.8 |
Option 2: Base application with controlled release fertilizer (Multicote™) + side dressing
Option 4: Fertigation program using Poly-Feed™ (NPK soluble fertilizer)
Option 6: Base dressing with controlled release fertilizer (Multicote™) and fertigation
Option 1: Base and side dressing with granular ferilizers
| Stage | Pre-planting | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
| Duration | 30 days | 30 days | 30 days | 30 days | 30 days | |
| Fertilizers (kg/ah) | ||||||
400 | 300 | |||||
235 |
|
|
|
|
| |
Haifa K-Mag 0-0-22+18MgO+22SO3 | 250 |
|
|
| 250 |
|
Dolomite 26% | 254 |
|
|
|
|
|
Urea 46-0-0 |
|
|
|
| 226 |
|
Total nutrients (kg/ha) | ||||||
N | 862 | 45 |
|
| 104 |
|
P2O5 | 122 |
|
|
|
|
|
K2O | 60 | 45 |
|
| 55 |
|
MgO | 30 |
|
|
| 30 |
|
CaO | 66 |
|
|
|
|
|
Total nutrient supply (kg/ha)
N | P2O5 | K2O | MgO | CaO |
| 235 | 122 | 215 | 60 | 66 |
* In soil with high phosphorus levels use Haifa Turbo-K™ 18-09-18
Option 2: Base application with controlled release fertilizer (Multicote™) + side dressing
Due to the high nutrients use efficiency with Multicote™, application rates can be reduced to about 70% of the N and K2O compared to conventional fertilization.
| Application rate - % of common practice | % coated nutrients | ||||
N | P2O5 | K2O | N | P2O5 | K2O | |
Light soil | 60-70 | 100 | 70 | 70 | - | 30-50 |
Heavy soil | 70-90 | 100 | 80 | 50 | - | 30-50 |
| Stage | Pre-planting | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
| Duration | 30 days | 30 days | 30 days | 30 days | 30 days | |
| Fertilizers (kg/ah) | ||||||
1000 |
|
|
|
|
| |
Dolomite 26% | 250 |
|
| 250 |
|
|
|
|
| 100 |
|
| |
Total nutrients (kg/ha) | ||||||
N | 150 |
|
| 13 |
|
|
P2O5 | 150 |
|
|
|
|
|
K2O | 150 |
|
| 45 |
|
|
MgO | 25 |
|
| 25 |
|
|
CaO | 65 |
|
| 65 |
|
|
Total nutrient supply (kg/ha)
N | P2O5 | K2O | MgO | CaO |
| 163 | 150 | 195 | 50 | 130 |
Option 3: Fertigation program using straight fertilizers
| Stage | Pre-planting | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
| Duration | 30 days | 30 days | 30 days | 30 days | 30 days | |
| Fertilizers (kg/ah) | ||||||
| 100 | 140 | 140 | 170 |
| |
| 75 | 50 | 50 | 50 |
| |
| 34 | 68 | 68 | 90 |
| |
| 50 | 50 | 75 | 75 |
| |
Ammonium Nitrate 34-0-0 |
| 25 | 25 | 50 | 50 |
|
Total nutrients (kg/ha) | ||||||
N |
| 42 | 48 | 48 | 66 |
|
P2O5 |
| 46 | 31 | 31 | 31 |
|
K2O |
| 46 | 64 | 64 | 78 |
|
MgO |
| 5 | 11 | 11 | 14 |
|
CaO |
| 13 | 13 | 13 | 20 |
|
Total nutrient supply (kg/ha)
N | P2O5 | K2O | MgO | CaO |
| 204 | 139 | 252 | 41 | 59 |
Option 4: Fertigation program using Poly-Feed (NPK soluble fertilizer)
| Stage | Pre-planting | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
| Duration | 30 days | 30 days | 30 days | 30 days | 30 days | |
| Fertilizers (kg/ah) | ||||||
| 45 |
|
|
|
| |
|
| 240 |
|
|
| |
|
|
| 300 |
|
| |
|
|
|
| 675 |
| |
|
| 60 | 60 | 110 |
| |
|
| 60 | 60 | 110 |
| |
Total nutrients (kg/ha) | ||||||
N |
| 5 | 61 | 58 | 110 |
|
P2O5 |
| 19 | 46 | 21 | 34 |
|
K2O |
| 5 | 46 | 63 | 270 |
|
MgO |
|
| 10 | 10 | 18 |
|
CaO |
|
| 16 | 16 | 29 |
|
Total nutrient supply (kg/ha)
N | P2O5 | K2O | MgO | CaO |
| 234 | 120 | 384 | 38 | 61 |
Option 5: Base dressing with Haifa Turbo-K and fertigation
| Stage | Pre-planting | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
| Duration | 30 days | 30 days | 30 days | 30 days | 30 days | |
| Fertilizers (kg/ah) | ||||||
400 |
|
|
|
|
| |
| 150 |
|
|
|
| |
|
| 240 | 240 |
|
| |
|
|
|
| 600 |
| |
| 60 | 60 | 60 | 90 |
| |
| 60 | 60 | 60 | 90 | ||
Total nutrients (kg/ha) | ||||||
N | 60 | 44 | 49 | 49 | 104 |
|
P2O5 | 60 | 29 | 17 | 17 | 34 |
|
K2O | 60 | 29 | 50 | 50 | 270 |
|
MgO |
| 10 | 10 | 10 | 14 |
|
CaO |
| 16 | 16 | 16 | 24 |
|
Total nutrient supply (kg/ha)
N | P2O5 | K2O | MgO | CaO |
| 306 | 157 | 459 | 44 | 72 |
Option 6: Base dressing with controlled release fertilizer (Multicote) and fertigation
Due to the high fertilizing efficiency of the Multicote™, the application rate will be only ~70% of the N and K2O common application practice:
| Stage | Pre-planting | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
| Duration | 30 days | 30 days | 30 days | 30 days | 30 days | |
| Fertilizers (kg/ah) | ||||||
300 |
|
|
|
|
| |
| 100 |
|
|
|
| |
|
| 100 | 150 |
|
| |
|
|
|
| 600 |
| |
| 60 | 60 | 60 | 90 |
| |
| 60 | 60 | 60 | 90 | ||
Total nutrients (kg/ha) | ||||||
N | 45 | 35 | 30 | 37 | 95 |
|
P2O5 | 45 | 19 | 7 | 11 | 30 |
|
K2O | 45 | 19 | 21 | 32 | 240 |
|
MgO |
| 10 | 10 | 10 | 14 |
|
CaO |
| 16 | 10 | 16 | 24 |
|
Total nutrient supply (kg/ha)
N | P2O5 | K2O | MgO | CaO |
| 242 | 112 | 357 | 44 | 72 |
Complementary foliar nutrition
Foliar application of nutrients provides complementary fertilization with high added value, corrective nutrition when deficiencies are noticed and growth boosting during critical stages of the crop development. This foliar nutrition program can be added to all fertilization programs.
Stage description | Pre-plant | Establishment | Vegetative growth | Bulb initiation | Bulb development | Maturation |
duration |
| 30 days | 30 days | 30 days | 30 days | 30 days |
Fertilizers (kg/ha) | ||||||
| 1 kg/ha, conc. 0.5% | 1.5 kg/ha, conc. 0.5% |
|
|
| |
|
|
| 2 kg/ha, conc. 1% | 2 kg/ha, conc. 1% |
| |
|
|
| 5 kg/ha, conc. 2% | 5 kg/ha, conc. 2% |
| |
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