rootgrow turf at 100g/m2 Green 4 - Not hollow tined or top dressed (non-aerated control) Green 7 - Hollow tined and topdressed with 3m3
rootgrow turf at 50g/m2 Shortly before the trial started, core samples were taken at random from each green to measure the natural background level of mycorrhizal activity.
On 3rd June 2009 greens 1, 2 and 7 were hollow tined to a depth of three inches using a SISIS Supaturfman. Core debris was removed and discarded. Half of the sand topdressing was applied by hand over the greens, and luted into the turf using a metal dragmat.
rootgrow turf was then applied using a hand-propelled cyclone fertiliser spreader calibrated to 35g/m2
additional passes made to achieve the desired application rate as closely as possible. Finally, the remaining sand was applied to the three greens and luted into the tine holes using the metal dragmat. The greens were playable immediately after treatment. After 26 days a
, with Green 2 (rootgrow at 100g/m2 )
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further four core samples were taken from each green and assessments made of root and shoot fresh weight, and percentage mycorrhizal colonisation. Prior to treatment, all greens were broadly similar in appearance. The following images were taken 26 days after treatment. Root fresh weight (g) per gram of soil The green treated
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with rootgrow turf at the 100g/m2 dose had a superior visual appearance and a significantly higher root fresh weight per gram of soil than the other treatments - a result with particular relevance to the stability and durability of playing surfaces. However, the full effect of the mycorrhizal fungi won’t be seen for a few weeks yet, as Simon explains: “It takes a little while for the fungi to fully colonise the rootzone, after which we should start to see denser top growth. From extensive trials in Eastern Europe we also anticipate benefits in terms of reduced fertiliser and irrigation requirements as the mycorrhiza takes over the sourcing of water and nutrients for the turf, essentially reducing the amount of management intervention
Call Lely: 01480 226848 or email:
irrigation.uk@
lely.com www.toro.com
www.pitchcare.com REPLACEMENT PARTS Green 4 (non-a aerated control)
underway in the Midlands and North of England as PlantWorks sets out to demonstrate the benefits of UK isolates for UK conditions. Michael Weekes, Group Course Manager with Bromley Mytime Leisure is trialling the product on the USPGA-spec greens at Bromley Golf Centre, a full report from which will be available later in the year.
With the commercial launch planned for Autumn 2009, there is a limited quantity of rootgrow™ turf available for trials work over the next two months. Any greenkeeper wanting more information, or wanting to set up a trial, should contact Simon Taylor at PlantWorks on 01795 411 530.
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127
Bottom blades and cylinder
Irrigation On greens 2 and 7,
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sand and
(aerated control) Green 2 - Hollow tined and topdressed with 3m3
topdressed with 3m3
sand sand and
required.” For greens and tees receiving
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their first treatment, or for basal dressing prior to laying new turf, an application of 100g per square metre is recommended.
Classifieds
Subsequent applications should be made on an annual basis at half this rate, although badly damaged areas will benefit from repeat treatment at the higher dose. Further trials are currently
Peter Britton on 01747 855335 email:
peter@pitchcare.com
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Tel: 01525 775450 Email:
ukwater@grundfos.com Green 1 (aerated control) DIAPHRAGM DOSING PUMPS Irrigation Systems
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END SUCTION CENTRIFUGAL PUMPS
MULTISTAGE CENTRIFUGAL PUMPS
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