18 BARENBRUGSPORT2024 | PRODUCT GUIDE SGT “Sustainable Grass Technology” – Barenbrug’s research-driven concept designed to deliver outstanding turf performance in high stress conditions with reduced fertiliser, chemical and water inputs. Barenbrug aims to develop seed cultivars and grass seed mixes that respond to customers’ needs and a changing climate. Our new Sustainable Grass Technology (SGT) products are designed to reduce the chemical, fertiliser and water input for turf managers. Products under the SGT banner promise stress-tolerant grass for sustainable turf management and are the result of years of independent and in-house trials. Barenbrug’s SGT products have been tested extensively, and offer exceptional performance in one or more of four pillars of research: • Nitrogen-useefficiencytoreducefertiliseruseandcost • Droughttolerancetoincreasesurvivalandreducetheneed for irrigation in stress periods • Increaseddiseasetolerancetoreducetheneedfor fungicide • Lower biomass production (or clipping yield) to reduce mowing frequency, man hours and fuel use Drought tolerance The SGT products are curated from specially chosen cultivars. In trials at Landlab in Italy, during the harsh summer of 2018, Hardtophard fescue andBarjessicastrong creeping red fescue performed particularly well in periods of heat and drought, in comparison with other cultivars (Fig. 1). Both varieties feature inSGT Rye Fairway and SGT Fine Fescue. Figure1 - Drone Image From Landlab. Highlighted plots are the hard fescue. The quality and endurance of hard fescue stood alone during the most intense heat. Sustainable Nitrogen Efficiency In SGT Rye Fairway, Barpriumoffers proven capacity for nitrogen-use efficiency, requiring up to 50% less nitrogen. In an 18 month STRI trial (shown in Fig. 2), results demonstrate nitrogen efficiency from a number of cultivars against live ground cover. Barpriumdelivers the highest mean turf cover compared to all other cultivars. Put simply, it requires far less N to deliver equivalent turf performance. STRI researchers concluded: “The best performing cultivar in this trial was Barprium, with good turf quality and coverage observed at all N levels and N types. Even at very low levels ofN, Barpriumstill showed good quality and coverage.” Barpriumis highly ranked in the BSPB Turfgrass Seed 2024 booklet with a mean score of 7.5 on Table L1 and exhibits strong summer colour – another useful characteristic for lowinput golf fairways. Products available in the SGT range includeSGT Rye Fairway and SGT Fine Fescueand represent the culmination of many years of research and are targeted at golf course fairway overseeding to combat the effects of climate change and reduce future maintenance inputs. Turf Cover DIA Mean Scores at Different N-Inputs Barsignum Barorlando Bareuro Barolympic Baricum Barprium Baromario Baradona Straight urea @ 15g N m-2 year -1 Straight urea @ 7.5g N m-2 year -1 DIA Cover (% LGC) 80 75 70 65 60 55 50 45 40 Figure2 - STRI N-Efficiency Trial Data. Barprium delivers equivalent mean turf cover to all other cultivars at 50% less nitrogen input.
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