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Knowledge/Crops/Topinambur
Vegetables

Topinambur

Helianthus tuberosus

Topinambur, also known as Jerusalem artichoke, is a tuberous root vegetable belonging to the sunflower family. It is characterized by its knobby, edible tubers that can vary in color from white to purple. The plant grows tall, reaching heights of 1.5 to 3 meters, and produces yellow flowers similar to sunflowers. It is valued for its high inulin content, making it a suitable food source for diabetics and a potential bioenergy crop.

Calculate System for Topinambur
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

Topinambur is a hardy plant that can tolerate poor soil conditions. It is often grown as a perennial, and once established, it requires minimal maintenance. Varieties include 'White Fuseau' and 'Purple Peruvian', each with unique flavor profiles.

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%
Soil should be prepared by incorporating organic matter to improve fertility and structure. Avoid heavy clay soils that retain too much water.

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
Topinambur thrives in full sun and can tolerate drought conditions once established. However, consistent moisture is ideal for optimal growth.

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
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, sugar content

Design Your Topinambur Irrigation System

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

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Related Guides

Growing and Irrigating Topinambur: A Comprehensive Guide

Introduction Topinambur, also known as Jerusalem artichoke, is a versatile and economically beneficial crop that can be grown in various regions. It belongs to the sunflower family and produces tubers that are rich in nutrients and have numerous culinary uses. In this article, we will explore how to grow and irrigate…

Read Guide
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