Hereunder you’ll find examples of fertilizer schedules for lettuce crops under various growth environments. The programs were generated using Haifa’s digital tools – NutriNet™, and MultiMatch™ . You may use these free tools to adjust Nutrigation™ and controlled release nutrition to your specific growth conditions.
- Quantitative Nutrigation™ program for Roman Lettuce in Mexico
- Quantitative Nutrigation™ program for Roman Lettuce in Mexico, based on Poly-Feed™ NPK fertilizers
- Quantitative Nutrigation™ program for French Lettuce in Mexico
- Proportional Nutrigation™ program for Iceberg Lettuce in Israel
- Recommended Controlled Release Nutrition for soil-grown lettuce
Note: The presented programs should be regarded as a general guide only. The exact fertilization program should be determined according to the specific crop needs, soil type, water analysis, cultivar, and most important - the grower’s experience.
Nutrigation™ (fertigation)
Nutrigation™ (fertigation) delivers pure plant nutrients through the irrigation system, supplying them precisely to the zone of most intensive root activity. A well-balanced Nutrigation™ program provides plants with their exact needs, as they change along the season.
Quantitative Nutrigation™, which is the method of choice in soils with medium to heavy texture, delivers a predetermined amount of nutrients regardless of the irrigation volume.
Proportional Nutrigation™ maintains a consistent nutrient concentration in the irrigation water, tailored to the crop's specific needs at each growth stage. This method is ideal for light soils, soilless media, and hydroponics.
Learn more about the benefits of Nutrigation™
The suggested lettuce Nutrigation™ schedules were generated using Haifa’s NutriNet™ - a powerful tool that helps growers to create and Nutrigation™ (fertigation) programs, considering the actual growth conditions. A carbon Footprint Calculator embedded in the system compares the suggested Nutrigation programs with conventional fertilization practices, helping you make environmentally responsible decisions.
Nutrient supply for the season (kg/ha)
Stage | No. of days | Macronutrients (kg/ha) | Secondary nutrients (kg/ha) | Micronutrients (gram/ha) | |||||||||
N total | P2O5 | K2O | CaO | MgO | SO4 | Fe | Mn | Zn | Cu | Mo | B | ||
Transplanting | 7 | 8.47 | 11.55 | 3.85 | 6.16 | 0.22 | 4.56 | 164.34 | 82.17 | 27.39 | 20.54 | 13.70 | 0.00 |
Vegetative | 14 | 69.30 | 30.80 | 30.80 | 15.40 | 0.55 | 154.90 | 438.24 | 219.12 | 73.04 | 54.78 | 36.52 | 0.00 |
Initiation of head formation | 14 | 77.00 | 30.80 | 30.80 | 15.40 | 0.55 | 181.48 | 328.68 | 164.34 | 54.78 | 41.08 | 27.39 | 0.00 |
Head closing | 7 | 4.40 | 22.37 | 11.00 | 0.00 | 0.00 | 11.75 | 109.56 | 54.78 | 18.26 | 13.70 | 9.13 | 0.00 |
Total | 42 | 159.17 | 95.52 | 76.45 | 36.96 | 1.32 | 352.69 | 1040.82 | 520.41 | 173.47 | 130.10 | 86.74 | 0.00 |
Recommended fertilizer amounts at each growth stage (kg/ha)
|
| Transplanting | Vegetative | Initiation of head closing | Head closing | Total |
Tank A | 8.71 | 69.68 | 69.68 | - | 140.06 | |
- | - | - | 21.57 | 21.57 | ||
Haifa SOA™ | 6.29 | 213.65 | 250.32 | - | 470.27 | |
18.65 | 48.20 | 48.20 | 36.67 | 151.72 | ||
Tank B | 1.42 | 3.54 | 3.54 | - | 8.50 | |
23.25 | 58.11 | 58.11 | - | 139.47 | ||
2.28 | 6.09 | 4.56 | 1.52 | 14.46 |
Click to download the full program
2. Quantitative Nutrigation™ program for Roman Lettuce in Mexico, based on Poly-Feed™ NPK fertilizers (expected yield: 60 ton/ha)
Nutrient supply for the season (kg/ha)
Stage | No. of days | Macronutrients (kg/ha) | Secondary nutrients (kg/ha) | Micronutrients (gram/ha) | |||||||||
N total | P2O5 | K2O | CaO | MgO | SO4 | Fe | Mn | Zn | Cu | Mo | B | ||
Transplanting | 7 | 8.47 | 11.55 | 3.85 | 6.16 | 0.22 | 1.25 | 159.89 | 79.94 | 27.56 | 19.73 | 13.10 | 3.40 |
Vegetative | 14 | 69.30 | 30.80 | 30.80 | 15.40 | 0.00 | 101.82 | 440.00 | 194.50 | 73.48 | 46.19 | 30.26 | 32.42 |
Initiation of head formation | 14 |
77.00 |
30.80 |
30.80 |
15.40 |
0.00 |
128.40 |
330.00 |
139.39 |
55.11 |
41.25 |
21.07 |
32.42 |
Head closing | 7 | 4.40 | 22.37 | 11.00 | 0.00 | 0.00 | 11.75 | 109.56 | 54.78 | 18.26 | 13.70 | 9.13 | 0.00 |
Total | 42 | 159.17 | 95.52 | 76.45 | 36.96 | 0.22 | 243.22 | 1039.45 | 468.61 | 174.41 | 120.87 | 73.56 | 68.24 |
Recommended fertilizer amounts at each growth stage (kg/ha)
|
| Transplanting | Vegetative | Initiation of head closing | Head closing | Total |
Tank A | 17.0 | 162.11 | 162.11 | - | 341.21 kg | |
1.22 | - | - | 21.57 kg | 22.79 kg | ||
Haifa SOA™ | - | 140.43 | 177.1 | - | 317.53 kg | |
13.64 | - | - | 36.67 kg | 50.30 kg | ||
1.37 | - | - | - | 1.37 kg | ||
Tank B | 23.25 | 58.11 | 58.111 | - | 139.47 kg | |
1.99 | 3.15 | 1.62 | 1.52 kg | 8.28 kg | ||
- | - | 0.056 | - | 0.056 | ||
- | 0.392 | 0.392 | - | 0.784 |
Click to download the full program
3. Quantitative Nutrigation™ program for French Lettuce in Mexico, based on Poly-Feed™ NPK fertilizers (expected yield: 60 ton/ha)
Nutrient supply for the season (kg/ha)
Stage | No. of days | Macronutrients (kg/ha) | Secondary nutrients (kg/ha) | Micronutrients (gram/ha) | |||||||||
N total | P2O5 | K2O | CaO | MgO | SO4 | Fe | Mn | Zn | Cu | Mo | B | ||
Transplanting | 7 | 8.80 | 11.55 | 3.85 | 6.16 | 0.22 | 5.70 | 164.34 | 82.17 | 27.39 | 20.54 | 13.70 | 0.00 |
Vegetative | 14 | 39.60 | 30.80 | 30.80 | 15.40 | 0.55 | 52.36 | 438.24 | 219.12 | 73.04 | 54.78 | 36.52 | 0.00 |
Initiation of head formation | 14 |
75.90 |
30.80 |
30.80 |
15.40 |
0.55 |
177.68 |
328.68 |
164.34 |
54.78 |
41.08 |
27.39 |
0.00 |
Head closing | 7 | 37.40 | 15.40 | 15.40 | 7.70 | 0.55 | 86.30 | 164.34 | 82.17 | 27.39 | 20.54 | 13.70 | 0.00 |
Total | 42 | 161.70 | 88.55 | 80.85 | 44.66 | 1.87 | 322.04 | 1095.60 | 547.80 | 182.60 | 136.94 | 91.31 | 0.00 |
Recommended fertilizer amounts at each growth stage (kg/ha)
|
| Transplanting | Vegetative | Initiation of head closing | Head closing | Total |
Tank A | 8.71 | 69.68 | 69.68 | 34.84 | 182.90 | |
Haifa SOA™ | 7.87 | 72.23 | 245.08 | 119.03 | 444.21 | |
18.65 | 48.20 | 48.20 | 24.10 | 139.15 | ||
Tank B | 1.42 | 3.54 | 3.54 | 3.55 | 12.05 | |
23.25 | 58.11 | 58.11 | 29.06 | 168.53 | ||
2.28 | 6.09 | 4.56 | 2.28 | 15.22 |
Click to download the full program
4. Proportional Nutrigation™ program for Iceberg Lettuce in Israel (indoor, expected yield: 40 ton/ha, 77-day growth cycle)
Recommended nutrient concentrations in the irrigation water
Stage | Days | Macronutrients (ppm) | Secondary nutrients (ppm) | Micronutrients (ppm) | EC (dS/m) | ||||||||||||
N total | N-NH4 | N-NO3 | N-NH2 | P2O5 | K2O | CaO | MgO | SO4 | Fe | Mn | Zn | Cu | Mo | B | |||
Sowing to transplanting | 25 | 49.94 | 5.0 | 44.94 | - | 50.0 | 50.0 | 50.0 | 33.0 | 49.06 | 0.96 | 0.48 | 0.16 | 0.12 | 0.08 | 0.2 | 0.48 |
First 7 days | 7 | 79.87 | 15.87 | 64.0 | - | 60.0 | 119.87 | 98.0 | 33.0 | 176.66 | 0.96 | 0.48 | 0.16 | 0.12 | 0.08 | 0.2 | 0.88 |
Growing cycle | 45 | 130 | 15.0 | 115.0 | - | 57.54 | 240 | 87.97 | 33.0 | 98.58 | 1.44 | 0.72 | 0.24 | 0.18 | 0.12 | 0.2 | 1.09 |
Recommended fertilizer amounts at each growth stage (kg in 1000-liter stock-solution tanks)
| Sowing to transplanting | First 7 days | Growing cycle | |||
Tank A | Tank B | Tank A | Tank B | Tank A | Tank B | |
43.76 |
| 29.01 |
| 121.29 |
| |
|
| 59.36 |
| 4.79 |
| |
18.23 |
| 35.84 |
| 23.24 |
| |
50.54 |
|
|
|
|
| |
86.15 |
| 75.15 |
| 50.26 |
| |
| 63.52 |
|
|
|
| |
| 127.47 |
| 193.04 |
| 188.63 | |
| 9.01 |
| 6.96 |
| 11.37 | |
Borax | 1.32 |
| 0.64 |
| 0.43 |
|
Injection rate (l/m3) | 1.34 | 1.48 | 2.74 | 1.92 | 4.1 | 1.76 |
Irrigation volume (m3/h/day) | 3 | 4 | 4 | |||
Click to download the full program
Controlled Release Fertilizers - Multicote™ Agri
Single, pre-planting application of Multicote™ Agri Controlled Release Fertilizers feed crops continuously throughout the growth season – for optimal growth and yield production.
Based on Haifa’s polymer coating technology, Multicote™ Agri release nutrients to the soil in a gradual manner, according to plant’s requirements. This prevents the leaching of nutrients, thus improving nutrient use efficiency and allowing for reduced application rates.
The recommendations hereunder were generated by the MultiMatch™ tool, that also estimates the environmental footprint of the suggested fertilization program and compares it to conventional practice.
Recommended Controlled Release Nutrition for soil-grown lettuce
Expected yield: 45 ton/ha
Soil type: medium-sandy
Water regime: semi aridic
Growth period: October – December
Recommended formula: Multicote™ Agri 2M 11-2-24 (27% coated N)
Application rate: 830 kg/ha
*Additional application of secondary and micronutrients is required.
To view complete details, including application guidelines and calculation of saving on CO2 emission, click here.
To customize Multicote™ nutrition to your plot, click here.
For complete recommendations, contact your local Haifa representative
