- Rockdust
Rockdust is an organic
fertiliser consisting of crushedbasalt , avolcanic rock , which containsminerals andtrace elements . Rockdust is added tosoil to improve fertility and has been tested since 1993 at theSustainable Ecological Earth Regeneration Centre (SEER Centre) inStraloch , nearPitlochry , inPerth and Kinross ,Scotland .SEER's research claims that the benefits of adding Rockdust to soil include increased moisture-holding properties in the soil, improved
cation exchange capacity and bettersoil structure and drainage. Rockdust also providescalcium ,iron ,magnesium ,phosphorus andpotassium , plus trace elements andmicronutrient s. By replacing theseleach ed minerals it is claimed that soil health is increased and that this produces healthier plants.Rockdust is also the limestone-based product sprayed on walls inside underground
coal mine s to keep coal dust levels down. This is to prevent coal dustexplosion s and also to prevent the incidence ofblack lung disease .ee also
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Organic farming
*Rock flour
*Soil conditioner External links
* [http://www.seercentre.org.uk/ Seer Centre]
* [http://news.bbc.co.uk/1/hi/scotland/3679450.stm BBC News report]
* [http://scotlandonsunday.scotsman.com/scotland.cfm?id=92342004/ Scotland on Sunday report]
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