Crop

Short-awned wheatgrass

Elymus breviaristatus (Hitchc.) Á. Löve subsp. scabrifolius (Döll) Á. Löve

Description

Sowing dates

The sowing of short-awned wheatgrass should be timed according to local climatic conditions, typically favoring early spring when the soil temperature rises above 5–8 degrees Celsius.

Winter sowing is also an effective strategy in regions with sufficient snow cover, allowing the seeds to germinate early as soon as the weather permits for better establishment.

Seeding rates typically range from 10 to 15 kg per hectare, depending on the desired density and seed quality. Precision sowing equipment is recommended to ensure even distribution.

Sowing depth is critical for successful emergence; 2–4 cm is generally recommended depending on the texture of the soil, with shallower depths used for heavier clay soils.

After seeding, rolling the soil surface is a recommended agricultural practice to ensure optimal seed-to-soil contact, which significantly improves the germination rate.

Growing requirements

This species belongs to the Poaceae family and is known for its remarkable adaptability to various environmental conditions, including cool and temperate climates.

It prefers well-drained, moderately moist soils but is recognized for its significant drought tolerance due to a deep and extensive root system developed over time.

Short-awned wheatgrass is relatively undemanding regarding soil fertility, though it responds well to nitrogen fertilization, which boosts biomass production during the growth season.

As a light-loving plant, it performs best in open areas with full sun exposure. It is highly resistant to winter frost, making it suitable for cold climate regions.

It is also capable of tolerating mild soil salinity, which increases its utility for reclaiming marginal lands that are unsuitable for traditional row crops.

Yield

The primary agricultural use of this grass is in the establishment of permanent pastures and hayfields, providing a consistent and nutritious source of animal feed.

Yields of forage biomass are influenced by moisture availability and soil nutrient levels, with intensive management allowing for two or more cuts per growing season.

Forage quality remains highest during the pre-flowering stage, offering high protein and digestible fiber content, which is essential for healthy livestock maintenance.

After being cut or grazed, the grass exhibits excellent regrowth potential, allowing for continued use of the land throughout the autumn months.

Integrating this grass into forage mixtures helps stabilize the soil structure, preventing erosion while simultaneously supporting biodiversity in the agricultural landscape.

Main diseases and pests

Like many perennial grasses, it may be susceptible to common fungal diseases such as rust and powdery mildew, which can affect leaves under high humidity conditions.

Insect pests such as grain flies may occasionally affect the crop during its early development stages, though they rarely cause economic loss in established fields.

Effective management includes maintaining a proper crop rotation and avoiding over-densification of the stand, which helps maintain good air circulation.

Integrated pest management strategies are preferred to maintain the environmental health of the pasture, focusing on biological controls rather than broad-spectrum chemical use.

Early harvesting can serve as a non-chemical method to mitigate the impact of certain pests and disease cycles, interrupting their development and spread.

Harvesting

Harvesting for hay should ideally occur during the booting or early flowering stages to achieve the best balance between yield and nutritional quality.

Drying the cut material quickly is essential to prevent nutrient leaching and maintain high vitamin levels, ensuring the best possible hay for winter supplementation.

When used as a pasture, rotational grazing is encouraged to allow the plants to replenish their root energy stores, ensuring the longevity of the stand.

Seed harvesting should be performed when the seeds reach physiological maturity, identified by their color change to light tan, using combine harvesters with precise settings.

Post-harvest conditioning, including drying to a moisture content of roughly 12% and careful cleaning, is required to maintain seed viability for future sowing cycles.