To advertise in this section contact Classifieds
Peter Britton on 01747 855335 email:
peter@pitchcare.com
SPORTS TURF CONTRACTORS
Avonmore Associates sportsfield construction
25 year of experience in bowling greens, fine turf management, pitch design, sportsfield construction and irrigation
Tel: 01789 293439 email:
info@avonmore-associates.co.uk www.avonmore-associates.co.uk
Vertidraining, Hollow Coring, Overseeding, Draining, Gravel Banding, Field Top Maker, Deep Scarifying
Mobile: 07860 259692
Tel: 01284 735105 Email:
peter@buryturfcare.com www.buryturfcare.com
Plant nutrition
PLANT NUTRITION - food for thought?
Agronomist David H Bates offers an alternative and interesting view to using
ammonia based fertilisers
Sports Ground Contractors Ltd
D W Clark DRAINAGE LTD
SPECIALIST SPORTSTURF CONSTRUCTION & DRAINAGE CONTRACTORS • Gravel Banding • Sand Slitting
• Top Dressing • Renovation • Irrigation Unit 7, Brailes Industrial Estate, Winderton Lane, Lower Brailes Banbury, Oxfordshire OX15 5JW
Tel: 01608 685800 Fax: 01608 685801 email:
jim@dwclarkdrainageltd.co.uk Web:
www.dwclarkdrainageltd.co.uk 130
important, particularly in the pacific region. Landing zones were extremely difficult as the natural environment was wooded scrubland. Clearance of such sites were made and, following this clearance, re-growth management undertaken by applying Anhydrous (water free) ammonia. This helped to ensure extremely hard runways. Nearly seventy years on these landing sites can still be seen from miles above our planet as re- growth has not occurred due to the ammonia, the basis of our present day fertilisers. For example, ammonia nitrate is produced by combining anhydrous ammonia and nitric acid. Urea is produced by combining anhydrous ammonia with phosphoric acid. In 1903 Cominco Ltd constructed an anhydrous ammonia plant at Trail, British Columbia. and became the first producer of granular fertiliser in 1932. The company produced a granular ammonium in 1963, followed by a granular urea in 1964.
D
we continued to apply such ammonia based salt fertilisers, our soils will become more compacted and toxic and less likely to sustain plant growth? This could result in restricted root room, exchange and nutrition pick up, along with poor drainage and, therefore, the need for yet more fertiliser applications
So, is it not conceivable that, if
uring World War II the need for air support to troops on the ground was vitally
to compensate for the decline. A spiral effect that leads to greater decline and, importantly, budget implications.
tends to rely on these kinds of fertilisers to achieve their needs, but there are always downsides. It is all about ‘balance’. You will inevitably feed more and apply more fungicides to control disease, whilst not necessarily achieving more. You will apply chemical growth retarders to manage the unruly growth habits which have arisen from the salts, otherwise fuel costs will escalate, i.e. more mowing on a daily basis. Over use of salt based fertilisers
tends to stimulate retardation in Poa annua, particularly in early spring growth. How many greenkeepers observe that their greens are not responding to growth at such times,for example, that spring growth is poor? It appears more common than ever this year following two poor summers and very cold winter and spring period. The developments in
A non organic turf manager
environmentally friendly and natural products have been evaluated by green staff and managers in recent years. The unique combination of nutrients that contribute to a greener, stronger, healthier and sustainable turf is possible.
nitrogen, in a form that is highly accessible via both the foliage and the roots, is now available.
The supply of stabilised amine
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