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Vegetables

Scallion (Green Onion)

Allium fistulosum

Scallions, also known as green onions or spring onions, are a type of onion characterized by their long green stalks and small white bulbs. They are commonly used in culinary dishes for their mild flavor and are rich in vitamins A, C, and K. Scallions are important in various cuisines worldwide and can be consumed raw or cooked.

Calculate System for Scallion (Green Onion)
300.00–500.00mm
Water Need
120 days
Season
20.00–40.00cm
Root Depth
20,000 kg/ha
Yield
333,333
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

Scallions can be grown from seeds or transplants. They are often harvested when young for their tender greens and mild flavor. Varieties include Japanese bunching onions and Welsh onions, which do not form a bulb.

Water Requirements

Season Total: 300.00500.00 mm
Water Stress Sensitivity: High
Salt Tolerance: Low
Water Productivity: 12.000 kg/m³

Recommended Methods

Drip Irrigation90.00%Furrow Irrigation50.00%

Soil Compatibility

Optimal pH range: 6.0 – 7.0

Sandy Loam
AWC100.00mm/m
Drainagegood
Drainage: Well-drained soils preferred
Organic Matter: 3.00%
Soil should be rich in organic matter to support healthy growth. Incorporating compost or well-rotted manure can improve soil fertility.

Climate Compatibility

Temperature range: 10.0°C – 25.0°C

Temperate Continental
ETo: 1.006.00 mm/day
Temp: -20.0°C – 30.0°C
Frost: high
Frost Tolerance: Low frost tolerance
Heat Tolerance: Moderate heat tolerance
Scallions thrive in mild climates. In hotter regions, provide partial shade during peak summer months to prevent bolting.

Planting Layout

30.00cm
Row Spacing
10.00cm
Plant Spacing
333,333
Plants per ha

Nutrient Requirements (kg/ha)

Nitrogen (N)100 kg/ha
Phosphorus (P)50 kg/ha
Potassium (K)150 kg/ha
30
Calcium (Ca) kg/ha
20
Magnesium (Mg) kg/ha
15
Sulfur (S) kg/ha
Schedule: Apply nitrogen at planting and again at mid-season. Use balanced fertilizers to ensure adequate nutrient supply.
Organic Matter: 3-5% organic matter recommended

Yield Information

20,000
kg/ha
0.200
kg/plant
0.500
Harvest Index
Quality Factors: Freshness, size, and uniformity

Design Your Scallion (Green Onion) Irrigation System

Use our free calculators to plan water requirements, spacing, and system costs for your Scallion (Green Onion) field.

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Related Guides

Scallion (Green Onion): A Guide to Growing and Irrigating Economically

Scallions, also known as green onions, are a versatile and flavorful vegetable that can be easily grown in a variety of climates. They are a popular choice for home gardeners and commercial farmers alike due to their relatively low maintenance requirements and high economic value. In this article, we will discuss how…

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