Tuesday, 17 June 2008

Atrazine - from silent night to silent spring

From Silent Spring to Silent Night
A talk by Prof. Tyrone Hayes,
Department of Integrative Biology,
University of California Berkeley. Given at Humphrey Institute in
Minneapolis on March 23, 2007. Dr. Hayes is an authority on the
effects of the pesticide atrazine on frogs, and is not popular with
chemical companies for his views and proven research.

Thursday, 12 June 2008

Vermiculture - Aquaponics.

A semi closed organic food system created in a minimal space intergrating vermiculture and aquaponics - using organic and Permaculture principles.

The goal is to cycle nutrients solid and liquid through a combined aquaponics and vermiculture system to grow food for the table. Recycle organic food and organic matter. Possibly produce Vermicompost and liquid fertilizer.

Worms produce nitrogen rich liquid and solid products suitable for growing plants, are a rich protein source.
Fish eat worms and also produce nitrogen.
Plants use nitrogen.
Hydroponic gravel beds act as filters removing particles and nutrients.
I Eat fish plants and worms (sometimes).
What type of fish?
Commercial home size aquaponic systems take about the space of a double garage and are claimed to feed a family of four.

Sunday, 8 June 2008


“What permaculture designers are doing is the most important activity that any group is doing on the planet.

We don´t know what will be the details of a truly sustainable future,

but we need options,

we need people experimenting all types of forms

and permaculture designers are one of the crucial groups who are doing this."

Dr David Suzuki