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Galuku

Galuku provided the following analysis:
  • Air-filled porosity 36-57%
  • Water-holding capacity 30-60%
  • Electrical conductivity (ms/cm) <0.7
  • pH 5.8-6.4
Sai Coir provided the following analysis:
  • pH 5.5-6.5
  • Nitrogen ppm 0-5
  • Phosphorus ppm 148-160
  • Potassium ppm 5000-6100
  • Calcium ppm 1100-1600
  • Magnesium ppm 700-900
  • Boron ppm 0-0.28
  • Iron ppm 5-16
  • Manganese ppm 0-9.8
  • Copper ppm 0-1.9
  • Zinc ppm 1-5.9
  • Molybdenum ppm 0-0.2
  • Aluminium ppm 0.1-0.3
  • Sodium ppm 3-3.5
  • Chlorides ppm 3-3.2
Galuku provides several grades including fibre and chips (husk) in sizes 2mm to 6mm, a chip and short fibre combination, hydroponic slabs, and blended products with trace elements for hydroponic use. Products suitable for orchid mixes are available in bales (20 x 40 x 33cm) weighing 20kg, compressed 3:1 and yielding 200 litres, in blocks yielding 60 litres, and in briquettes.
For those concerned over the possible health risks from various potting media, the official Material Safety Data Sheet (MSDS) for the product in Australia lists no discernible health risks other than possible irritation to the airways if the dust is inhaled at high concentrations typical of high levels of ingestion to the lungs of any fine material. Because the product is imported it is also subject to Australian Quarantine rules and inspections. As the cocopeat is packed and shipped in compressed blocks and is immersed in water prior to use to reconstitute it the risk from dust should be negligible if normal commonsense procedures are observed.
cocopeat

Before detailing our own experiences with cocopeat in its various forms as an orchid media, some particulars on experiences both here and overseas from a variety of commercial orchid nurseries may prove helpful! From the information we have been able to gather the product has been in use by some growers in the USA for up to ten years and in Australia for as long as eight years, in all cases growers report favourable results with many mentions of improved growth, particularly that of root systems. Repeated references are made to the materials ability to last for four or five years in good condition. Growers both here and in America report good results with a variety of genera from cymbidiums to zygopetalums, cattleyas, paphiopedilums and numerous other genera. Among those giving favourable reports on cocopeat as a potting medium are Royale Orchids (NSW), one of Australia’s premier nurseries (information supplied by Galuku Australia), also Loren Bachman, and Bob and Lyn Wellenstein in the USA. Bob and Lyn’s AnTec Laboratories is a well-known and respected source of quality Paphiopedilum hybrids and species and they recommend cocopeat chips as their preferred medium for Paphs being particularly impressed with “the speed of initiation and the number and substance of new roots”. More information is available on their website www.ladyslipper.com where a web page also lists comparison charts of tests done of coconut chips and bark (fir bark).



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