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TARKETT SPORTS BV | Galliërsweg 35 A, 5349 AT Oss, the Netherlands | info@grass

TARKETT SPORTS BV | Galliërsweg 35 A, 5349 AT Oss, the Netherlands | info@grassmastersolutions.com | www.grassmastersolutions.com Maintenance Guide Recommended mowing patterns 6 pairs of bays (goal to goal) & 9 pairs of bays (touchline to touchline) Using this configuration will minimize the turning traffic on the headlands. This configuration also allows for the moving of vehicular machinery such as the lighting system, sprayer and tractors to be performed in the direction of the cutting thus reducing visible tyre marks. Mowing Dependent on grass growth, usage, weather conditions and other maintenance protocols, it is recommended that the pitch be cut almost every day in the growing season. This will enable the plant to tiller out and increase in density. This will also have the effect of encouraging a broader leaf thus increasing grass tolerance of stress During the winter months as the growth is reduced the frequency may be reduced. This must be monitored on the ground, particularly with the use a Lighting system and Under-soil heating. To maintain a high level presentation, it is recommended that string lines be used ensure the mowing lines are straight and sharp in appearance. Day to day cutting should be carried out predominantly with pedestrian rotary mowers with a rear roller or a well maintained pedestrian cylinder mower. The lighter the mower the less compaction and surface hardness will occur. All clippings must be removed Rotary mowing is crucial post use. This will ensure the debris and organic matter are vacuumed up and will promote good surface hygiene and help prevent algae buildup. Supplementary lighting With a 9 light rig configuration the pitch can be treated in two moves. Additional light should be used in areas of high wear, the shadier part of the stadium and to recover areas from existing damage as determined on the ground. Seek manufacturer’s advice for more detailed information. TARKETT SPORTS BV | Galliërsweg 35 A, 5349 AT Oss, the Netherlands | info@grassmastersolutions.com | www.grassmastersolutions.com Aeration Pedestrian aeration should be carried out every three weeks with 8-15mm solid tines at approximately 30mm centers (GrassMaster) 8-10mm solid tines at approximately 30mm centers (PlayMaster) obviously, weather conditions and fixture scheduling may affect this at times, so a flexible approach needs to be used. It is important to vary the depth of aeration at each operation. This prevents panning of the soil. Pedestrian aerators will provide linear vertical de-compaction. This is useful to reduce surface hardness and increase infiltration rates of water penetrating and discharging into the drainage system. Surface hardness should remain within the recommended guidelines, these are between 65 and 85 gravities measured with a 2.5kg Clegg hammer. Pro-active aeration is triggered when surface hardness approaches 85G. Tractor mounted aerators such as verti drainers are able to apply a heave to the soil and lift it from below. Deep aeration, or de-compaction should be carried out 4 times a year. This deep aeration prevents any compaction of the deeper root-zone. It will also create the gaseous exchanges that needs to take place to prevent anaerobic soil conditions. It can be beneficial to time your aeration to coincide with granular fertiliser applications. The nutrients will be more quickly absorbed and reduces volatility losses. TARKETT SPORTS BV | Galliërsweg 35 A, 5349 AT Oss, the Netherlands | info@grassmastersolutions.com | www.grassmastersolutions.com Bio-stimulants A bio-stimulants program is essential in any sand based construction and has various positive effects.  Phosphites increase the plants resistance to stress, reduces incidence of fungal disease and improves visual quality.  Chitosan can help improve the plants ability to tolerate and recover from stress, caused by both hot and cold temperatures.  Amino acids increases the efficiency of uptake of nutrients, increases the stress tolerance, increases soil biomass and promotes root growth.  Silicates increase the strength of plant cell walls promoting an upright and turgid leaf therefore increasing resistance to disease  Mycorrhizal fungi can improve the plants access to and ability to uptake nutrients  Sugars and carbohydrates increase the turgidity of the leaf, increase microbial activity in the soil and acts as a chelating agent making locked up nutrients available to the plant.  Humic & fulvic acids have been shown to increase caution exchange capacity, improve germination rate, improve seedling vigor, retain and enhance nutrient uptake, increase microbial activity and improve root mass  Seaweed acts on plants though the plant hormones they contain and can help the plants ability to transport nutrients, regulate cell division and inhibit aging of plant tissues. A good bio-stimulant package can complement the existing fertiliser program and in some cases reduce the required output. Plant growth regulators A plant growth regulators such as trinexapac-ethyl has numerous beneficial properties.  Reduces leafy top growth  Increases leaf hardness and improves resistance to stress  Slows overall growth  Increases grass sward density Before applying a plant growth regulator it is important that the pitch is healthy, actively growing and free of disease or stress. During the growing season an application of PGRs at a rate of 1.2 L/H will usually last 21 days. TARKETT SPORTS BV | Galliërsweg 35 A, 5349 AT Oss, the Netherlands | info@grassmastersolutions.com | www.grassmastersolutions.com It is important not to allow the grass to come out of “PGR mode” before the next application. The grass rebound that occurs otherwise can be detrimental to pitch quality. Disease management Good disease management is predominantly about good cultural practices. Good cultural practice reduces the likelihood and severity of disease outbreaks. The use of chemicals should always be as a last resort or at times of high risk to the quality of the pitch. This could mean during times of high disease pressure or when the pitch is used for non-sport events where it is covered. Cultural control  Correct cutting height (too short can cause stress, too long can promote humidity in proximity to the leaf)  Good surface hygiene (Rotary mowers and collecting grass clippings)  Maintain correct sward density (remove excess lateral growth and old leaf matter)  Keeping the crown of the plant and the soil surface as clean as possible (lightly raking and aerating)  Leaf dryness (infrequent watering, dew brushing & fans for air circulation)  Maintain aerobic soil conditions (through aeration)  Promote hard growth (Bio-stimulants, growth regulators & correct nutrient inputs)  Promote healthy soil biology (Mycorrhizal fungi & carbohydrate bio-stimulants) Chemical Control  Preventative fungicide treatments at times of high disease pressure (Humid & warm weather)  Always spray at the earliest signs of the outbreak and ensure that the disease is correctly identified. Repeat applications should be from a different family of chemicals that act upon different biochemical processes to prevent resistance. Divoting/post-match repairs It is crucial that divoting is carried out after every pitch usage. It is one of the most overlooked jobs that a Groundsman must carry out and is definitely one of the most important. When divoting a hybrid turf system there are some key techniques and practices to ensure the best possible results.  Use of a divoting fork (see Groundsman’s divot fork via google)  Never replace divots  Closing of scar type divots TARKETT SPORTS BV | Galliërsweg 35 A, 5349 AT Oss, the Netherlands | info@grassmastersolutions.com | www.grassmastersolutions.com  Removal of dead grass from within divots  Hand seeding larger divots/high wear areas at the earliest opportunity with pre-germinated seed (this maintains grass density throughout the season and is crucial)  Every m2 of the pitch must be systematically checked (walk in a group of 3-4 people up and down the pitch mowing pattern) Scarifying, raking and thatch management Scarifying, raking or thinning out of a dense sward through mechanical means is good practice, when the pitch conditions are suitable. (Should only be undertaken times of active grass growth) This process allows for the generation of new growth, aiding plant health, and promoting surface hygiene by removing dead or decaying matter from the grass canopy. Any shedding yellow leaves will be detached and flicked onto the surface of the grass to be removed with rotary mowing. The use of a spring tine rake to de-thatch the sward is beneficial and will agitate the film of algae and decaying organic matter, mechanically removing it from the surface of the soil. Too much grass density can sometimes become an issue and verti-cutting it will reduce the likelihood of fungal disease outbreak by allowing some air to move around the base of the grass plant. Irrigation It is important to take a pro-active approach to irrigation and its management. The use of a soil moisture probe is strongly recommended. When applying irrigation it is good practice to at least soak the whole of the top 100mm of the soil consistently. This requires a longer application of water. (+20mm of irrigation) Deeper irrigation applications allow for a longer inter-irrigation period. Normally 20mm will be enough to maintain adequate soil moisture for 2-3 days. It obviously will depend on weather conditions and specific circumstances but this is a uploads/Ingenierie_Lourd/ maintnance-guide 1 .pdf