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Management, harvest, and storage characteristics of low‐input cool‐season turfgrass sod mixtures
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Management, harvest, and storage characteristics of low‐input cool‐season turfgrass sod mixtures
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Journal Article
Management, harvest, and storage characteristics of low‐input cool‐season turfgrass sod mixtures
2022
Overview
The lack of turfgrass diversity in cool‐season sod production is related to information inefficiencies, such as the lack of agronomic information available on improved, low‐input species, such as fine fescues (Festuca spp.). Collaborative research between Purdue University and University of Minnesota investigated the influence of cool‐season turfgrass species mixtures on the harvest (production and strength) and storage limitations of sod. Field experiments were established in 2018 in West Lafayette, IN, and in 2019 in St. Paul, MN. Treatments included 12 turfgrass species mixtures that consisted of the following five species: strong creeping red fescue (Festuca rubra L. ssp. rubra Gaudin), Chewings fescue (F. rubra ssp. commutata Gaudin), hard fescue (F. brevipila Tracey), tall fescue (F. arundinacea Schreb.), and Kentucky bluegrass (Poa pratensis L.). Data on turf cover, vertical growth rate, sod tensile strength, sod handling, and shelf‐life storage and transplant success were collected at multiple harvest timings from 10 to 24 mo after planting. The majority of the sod mixtures, especially those containing ≥33% strong creeping red fescue, produced high quality sod similar to the standard comparison of 100% Kentucky bluegrass sod and transplant success was not severely affected when stored for 24–72 h immediately following a spring or autumn harvest. Sod mixtures containing tall fescue, including “rhizomatous tall fescue,” consistently resulted in the lowest sod strength and handling. Overall, sod producers growing fine fescue sod may be able to not only reduce management inputs, but also yield good sod strength with low‐input sod mixtures. Core Ideas Kentucky bluegrass sod exhibited the slowest establishment rates. Higher vertical growth rates occurred for both Kentucky bluegrass and tall fescue. Low‐input mixtures should contain at least 33% strong creeping red fescue for sod strength. Mixtures containing tall fescue produced sod with poor tensile strength. All sod mixtures successfully transplanted after 24‐ or 72‐h storage.
