Yield metrics for smooth meadow-grass (Poa pratensis) vary depending on the intended use: forage, seed production, or turf. Critically important parameters include the harvest of green mass, dry matter, seeds, and shoot density.
In the reference
29
varieties
crop Kentucky bluegrass,
where this is mentioned in the description.
To assess the forage productivity of smooth meadow-grass, the harvest of green mass and dry matter is measured in centners or tonnes per hectare. The average yield of green mass is approximately 160 ц/ha, reaching up to 350 ц/ha under intensive conditions, while the yield of dry matter varies from 17.0 to 56.5 ц/ha. In seed production, the key indicator is the seed weight per hectare, averaging 4.0 ц/ha, with a thousand-seed weight in the range of 0.25–0.3 g.
For turf use, green mass yield is secondary to sward density, where a density of 1100–1200 shoots per 1 m² is considered the standard. The crop's productivity is closely linked to its age: maximum values are achieved in the 2nd–3rd years of life, after which the number of generative shoots and seed yield decrease. The stability of meadow-grass yield also depends on the water regime, with a preferred groundwater depth of 0.5–1.0 m, and its responsiveness to mineral fertilizers.
General information about the subject — on the page
Yield.
Varieties of Kentucky bluegrass mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.