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Knowledge/Crops/Kohlrabi
Vegetables

Kohlrabi

Brassica oleracea var. gongylodes

Kohlrabi is a biennial vegetable in the cabbage family, known for its swollen stem that forms a bulb above ground. It has a mild, sweet flavor and can be eaten raw or cooked. The plant is rich in vitamins C and K, and is often used in salads, slaws, and stir-fries.

Calculate System for Kohlrabi
400.00–600.00mm
Water Need
120 days
Season
30.00–60.00cm
Root Depth
25,000 kg/ha
Yield
20,000
Plants/ha

Growth Stages

Season: Mar – Aug (120 days)

Initial
Kc 0.400
30 days
Development
Kc 0.700
40 days
Mid-Season
Kc 1.000
60 days
Late
Kc 0.800
30 days

Kohlrabi can be grown in various climates but prefers cooler temperatures. It is important to harvest before the bulbs become woody.

Water Requirements

Season Total: 400.00600.00 mm
Water Stress Sensitivity: High
Salt Tolerance: Moderate
Water Productivity: 15.500 kg/m³

Recommended Methods

Drip Irrigation90.00%Fixed Sprinkler70.00%

Soil Compatibility

Optimal pH range: 6.0 – 7.5

Sandy Loam
AWC100.00mm/m
Drainagegood
Drainage: Well-drained soils preferred
Organic Matter: 2.00%
Incorporate organic matter to improve soil structure and fertility. Soil testing is recommended to adjust pH and nutrient levels.

Climate Compatibility

Temperature range: 15.0°C – 30.0°C

Temperate Continental
ETo: 1.006.00 mm/day
Temp: -20.0°C – 30.0°C
Frost: high
Mediterranean
ETo: 3.007.00 mm/day
Temp: 5.0°C – 35.0°C
Frost: low
Frost Tolerance: Low frost tolerance
Heat Tolerance: Moderate heat tolerance
Kohlrabi thrives in cooler weather; high temperatures can lead to bolting. Use shade cloth in hotter climates.

Planting Layout

100.00cm
Row Spacing
50.00cm
Plant Spacing
20,000
Plants per ha

Nutrient Requirements (kg/ha)

Nitrogen (N)150 kg/ha
Phosphorus (P)60 kg/ha
Potassium (K)180 kg/ha
40
Calcium (Ca) kg/ha
25
Magnesium (Mg) kg/ha
20
Sulfur (S) kg/ha
Schedule: Apply nitrogen in 3 splits during growing season, with phosphorus and potassium at planting.
Organic Matter: 2-3% organic matter recommended

Yield Information

25,000
kg/ha
2.500
kg/plant
0.450
Harvest Index
Quality Factors: Size, color, texture, flavor

Design Your Kohlrabi Irrigation System

Use our free calculators to plan water requirements, spacing, and system costs for your Kohlrabi field.

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Related Guides

Kohlrabi: A Guide to Growing and Irrigating Economically

Kohlrabi is a versatile and nutritious vegetable that belongs to the Brassica family. It is known for its unique appearance, with a bulbous stem that resembles a turnip or cabbage. Kohlrabi is not only a delicious addition to various culinary dishes but also a great choice for economically efficient crop production.…

Read Guide
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