Barley
Hordeum vulgare · Poaceae
Description
Barley is a cereal grain that has been cultivated for thousands of years. It is characterized by its elongated, slender stalks and spikelet clusters, which produce grains rich in nutrients. It can be grown in a variety of climates and is used for food, animal fodder, and brewing.
Where it Grows
Planting
When to Plant
Barley is typically planted in early spring or late fall, depending on the variety and local climate conditions. For spring barley, aim for March to April; for winter barley, sow in September to October.
How to Plant
- Soil Preparation: Till soil to a depth of at least 6 inches, removing rocks and debris.
- Seeding: Plant seeds 1 to 2 inches deep in rows spaced 6 to 7 inches apart.
- Spacing: Seeds should be spaced approximately 1 to 2 inches apart within the rows.
Planting Calendar
- Sow outdoors: 2–6 weeks before the last frost
- Germination: 4–10 days
- Sow outdoors: Feb 27 – Apr 2
- Harvest: May 28 – Aug 21
Care
Watering
Barley requires moderate water, about 1 to 2 inches per week, especially during the flowering and grain-filling stages.
Weeding
Regularly remove weeds, especially during the early growth stages. Use mulching or hoeing to keep the growing area tidy.
Mulching
Applying a 2 to 3-inch layer of organic mulch helps retain moisture and suppress weeds.
Fertilizing
Barley benefits from a nitrogen-rich fertilizer applied at planting, as well as a side dressing during the growth phase.
Thinning
If plants are overcrowded, thin them to ensure adequate sunlight and airflow, maintaining a distance of 6 to 7 inches between plants.
Pest Management
Monitor for pests like aphids and armyworms. Use integrated pest management (IPM) strategies to control infestations.
Harvesting
Harvest when the grains are hard and the plants begin to turn yellow-brown. Use a combine harvester for best results.
Growing in Containers
Grows well in a pot of at least 20 litres (5.3 US gallons), with drainage holes. Best kept outdoors.
Propagation
From seed
- Choose seed of a barley variety suited to your growing season.
- Sow directly into a weed-free, well-drained seedbed.
- Cover the seed with about 1 to 2 inches of soil.
- Water gently and keep the soil moist until seedlings emerge.
Companion Plants
Good neighbors
- Field peas: Barley and field peas are commonly grown together as a mixed grain or forage crop, with peas adding nitrogen to the growing system.
- Common vetch: Common vetch is often mixed with barley for forage or cover cropping, using barley stems for support.
- Red clover: Red clover can be undersown in barley so it establishes beneath the grain and continues growing after harvest.
Common Problems
- Powdery Mildew: Fungal infection causing white powdery spots on leaves.
- Barley Yellow Dwarf Virus: A viral disease transmitted by aphids, leading to yellowing and stunted growth.
Pests and diseases: Aphids, Birds, Cutworms, Powdery Mildew, Rust
Nutrition
Nutritional Benefits
- High in dietary fiber, which promotes digestive health.
- Source of B vitamins like niacin, thiamine, and riboflavin.
- Contains antioxidants that may help reduce inflammation.
Nutritional Composition (per 100g)
| Nutrient | Amount |
|---|---|
| Calories | 354 kcal |
| Carbohydrates | 73.5 g |
| Protein | 12.5 g |
| Fat | 2.3 g |
| Fiber | 17.3 g |
| Iron | 3.6 mg |
| Magnesium | 79 mg |
| Phosphorus | 410 mg |
Varieties
- Hulless Barley: Easier to process; often used in health foods.
- Malting Barley: Specifically bred for beer production.
- Feed Barley: High in energy, used primarily as animal feed.
Health Benefits
- May aid in weight management due to high fiber content.
- Can help lower cholesterol levels.
- Supports heart health and regulates blood sugar levels.
Fun Facts
- Barley is one of the oldest cultivated grains, dating back to 10,000 BCE.
- It is the fourth most important cereal crop worldwide, after wheat, rice, and corn.
- Barley water is a popular drink in some cultures and is thought to have health benefits.