Compost+Factory

= = =Step-by-step construction instructions=
 * Compost factory : ** ** A keyhole garden for composting with worms ** //Make your worms survive danish cold winter outdoor.//
 * [[image:IMG_0718.JPG width="240" height="315"]] || **Materials**
 * Earthworms//: Eisenia foetida// (Red Wigglers) (price:389DKK) (free compost in Copenhagen)
 * Stones, Gravel (found in the site)
 * Metallic bin
 * Tapaulin and geotextile
 * Plastic tube and pot
 * Soil (poor in nutriments)
 * Organic waste, paper and cardboard ||
 * 1) We have flattened and compacted the soil and marked two circles: R=22,5cm (that is the size of the bin) and R=90cm.
 * 2) We constructed the wall around 50cm height in a keyhole shape.
 * 3) We ajusted the level of the ground in order to allow a one way runoff of the water.
 * 4) We posed the tapaulin and tested the runoff. We conected the tube at the lowest point and opened a hole to the tapaulin.
 * 5) We tested the runoff of the water towards the exterior of the keyhole in a pot.
 * 6) We filled 2-3cm with gravel and flattened.
 * 7) We posed the geotextile and filled with the soil. We added offen some gravel in the periphery to fill the holes of the wall.
 * 8) **Rest to do: put organic waste, cardboard, paper and plant the keyhole garden!**
 * [[image:IMG_0749.JPG width="234" height="177" caption="Step 2: Keyhole wall"]] || [[image:P1010056_(2).JPG width="234" height="177" caption="Step 3 - 6. Plastic at the bottom to collect worm tea"]] || [[image:P1010070_(2).JPG width="143" height="181" caption="Step 7: Filling the walls with soil. Yellow bucket is there to collect worm tea"]] || [[image:P1010068_(2).JPG width="234" height="180" caption="Finished construction, before filling with soil"]] ||

=Results= >>>
 * **Mi-september:** Construction and worms installation
 * **January:** One month frost (-8°C outside temperature), two weeks snow. The surface layers of compost and soil were frozen (thikness of ice around 10cm) but positive temperatures (around 1°C) deeper inside the compost bin.
 * **Early March:**Adult worms in the compost bin have survived the danish winter!

=Participants=
 * Lina
 * Philippo
 * Steen
 * Sofien

=References=
 * Vermicomposting basics wiki
 * "How to Make Your Own Worm Compost System" - Wiki how guide