Spice Vegetable

CHINESE SCALLION

(Allium chinense)

Chinese Scallion (also known as Rakkyo) is a widely used spice vegetable, delicious pickled or with roasted meat.

Living Conditions

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Mild Climate

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70-80% Soil Moisture

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Light Loose Soil

Preparation

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Bulb Select Large, Mature

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Rotation With Rice

Seed: 120-130kg/1.000m²

Water Needs

Max

Don't let field dry during bulb growth

Chinese Scallion

Allium chinense

High

Economic Value

100-140

Days to Harvest

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1. Bio Characteristics

Fascicled roots, long white bulbs. Leaves are long, stiff, dark green. Prefers mild climate.

Adaptability: 85%

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2. Uses

Culinary (pickles, side dish) and Medicinal (treats bloating, indigestion, joint pain).

Value: 90%

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3. Cultivation

Main season Sep-Oct. Row spacing 20-25cm. Plant bulbs 4-5cm deep.

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Keep Moist

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Weeding

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Density

favorite I. Uses & Value

Chinese Scallion (also known as Rakkyo) is a widely used spice vegetable in Vietnam, Japan, and China. It can be pickled like onions, used in salads, and is particularly delicious when served with roasted pork or duck.

"High Economic Efficiency"

Medicinal Value: Treats bloating, indigestion, joint pain, and acts as an appetite stimulant.

spa II. Biological Characteristics

Roots & Stem: Fascicled roots, long, white, penetrating deep into the soil. The true stem is degenerated into a basal plate; the false stem (bulb) is white and is the main edible part.
Leaves: Leaves are long, linear, stiff, dark green, and glossy. Scallions prefer a mild climate and can tolerate cold.

Soil: Grows well on light, loose soil, rich in organic matter, pH 6-6.5. Do not plant on soil where plants of the same family were grown in the previous season.
Rotation: Crop rotation is necessary, preferably with aquatic crops (wet rice).

agriculture III. Cultivation Techniques

1. Seasons

Main Season: Sep 15 - Oct 30
Late Season: Oct - Jan
Spring Season: April

2. Soil and Fertilizers

Bed Preparation: Bed width 1.0-1.1m, height 0.25-0.30m.

Fertilizer per 1,000m²:

check_circle Organic fertilizer: 2.0 - 2.5 tons
check_circle Urea: 25 - 30kg
check_circle Superphosphate: 30 - 40kg
check_circle Potassium chloride: 15 - 20kg

* Basal application: all organic fertilizer, superphosphate, 1/3 urea and 1/3 potassium at a depth of 15-18cm.

3. Spacing & Care

Spacing: Row spacing 20-25cm, plant spacing 10-13cm.
Planting: Plant bulbs 4-5cm deep, cover with soil to bulb level. Seed amount: 120-130kg/1000m².
Care:
- Watering: Use a watering can or furrow irrigation. Do not let the field lack water.
- Weeding: Weed by hand, gently.
- Top Dressing: 2-3 times (young plants, strong growth, bulb development). 10-12 days apart.
Pests: Leaf-eating insects, downy mildew, bacterial bulb rot. Use partial pest management.

inventory_2 IV. Harvest & Preservation

Timing: 100 - 140 days after planting. Harvest when leaves naturally wither.
Method: Bundle them or cut them loose, wash with clean water, let dry, and then sell.
Preservation: Select fields with good growth, large, fully mature bulbs. Bundle and dry in the sun. Store in a cool, dry, elevated place; check regularly to remove spoiled bulbs.

Fertilizers (for 1,000m²)

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2.0-2.5 Ton Organic

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25-30 kg Urea

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30-40 kg Superphosphate

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15-20 kg Potassium

Growth Process (100-140 Days)

Planting

Sep-Oct - Plant bulbs 4-5cm deep.

Care

Top dressing 2-3 times. 10-12 days apart.

Bulb Development

Keep soil moist, control pests.

Harvest

Day 100-140 - When leaves wither.