Haifa Group Nutrition Recommendations for Calla lily:
Typical values of foliar analysis of Calla lily:
|
Nutrient |
Deficient |
Low |
Sufficient |
High |
Excess |
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|
|
-------------------------- % -------------------------- |
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|
N |
2.3 |
2.7 |
4 |
5 |
|
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|
P |
0.15 |
0.2 |
0.5 |
0.6 |
|
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|
K |
2.5 |
3.5 |
4.5 |
5.5 |
|
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|
S |
0.15 |
0.2 |
0.6 |
0.7 |
|
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|
Ca |
0.5 |
0.6 |
1.8 |
2.5 |
|
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|
Mg |
0.1 |
0.2 |
0.45 |
0.6 |
|
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|
|
------------------------ppm------------------------ |
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|
Boron (B) |
12 |
20 |
50 |
90 |
|
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|
Copper (Cu) |
4 |
6 |
24 |
50 |
|
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|
Iron (Fe) |
30 |
50 |
300 |
500 |
|
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|
Manganese (Mn) |
35 |
50 |
300 |
500 |
|
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|
Molybdenum (Mo) |
|
|
|
|
|
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|
Sodium (NA) |
50 |
200 |
1000 |
3000 |
|
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|
Zinc (Zn) |
15 |
20 |
100 |
200 |
|
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Calla lily fertilization program should take in consideration two important points:
- High N-K ration will result in longer stems and weaker plants. The recommended ratio per stage is:
| Growth stage | Planting | Pre‐flowering (6‐8 weeks) | Flowering | End of flowering | Tuberisation |
| N:K ration | 2:1 | 2:1.5 | 1:1 | 1:1.5 | 1:3 |
- High EC and heavy fertilization can result root damage and cause to entry of disease, leading to Erwinia. EC level should be kept under 1.8
See below a suggestion for standard solution with N:K with ratio 1:1 calculated by NutriNet™ - Haifa’s fertigation expert program:
| Growth stage | Days | Macronutrients | Secondary Nutrients | Micronutrients |
Ec
|
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| N_Total | N_NH4 | N_NO3 | P2O5 | K2O | CaO | MgO | SO4 | Fe | Mn | Zn | Cu | Mo | B | |||
| Standard | 365 | 134.932 | 19.990 | 114.942 | 69.965 | 159.920 | 89.955 | 41.979 | 0.000 | 1.70 | 0.600 | 0.260 | 0.050 | 0.070 | 0.330 | 1.01 |
Remember: The more leaves a plant has the greater the number of flowers to be expected.