These are the 40mm PVC pipes for the centre of The Compost Midden (TCM). Drilled in N,E,S,W horizontally along the pipe at 100mm vertically apart. The pipes are 1m long. The bottoms are buried 100mm deep into the soil. Used for watering the middens but as I worked out a pain in the arse for mixing the middens - maybe better to go without the pipes.
The Compost Midden is similar to that used by the original Amazonian Indians to make Terra Preta de Indio. To build one, add:
Once again, what you add to TCM depends on which plants you want to grow (and what they need to grow) and the 'terroir'.
You need to ensure moisture gets to the bacteria, fungus, manure, earthworms and the general 'soil food web' that you are trying to kickstart.
Turn over the middens every few days. If the middens get too large to enable easy turning, make another one and so on...
Add to soil removed from circular Zai pits or swales (50/50) then mix together = Permafert! Then add back into the pits and swales eg.A 'Tree Guild', posted on the 'Latest Regenerative Agroforestry System (RAS) notes' page
Watch this space! Terra preta vermicompost
Add to the 50 litre opaque plastic containers:
The key with the compost tea is minimising the amount of compost you need to feed the plants. I'm going to try making brews from inoculums from both TCM and TPV. Compost tea seems to be a very efficient way of spreading desirable micro-organisms to the plant production areas. If the soil is kept moist, and the rest of the soil food web is established by nature, you should only need to use the Compost slurry once in a given location (also remembering that the majority of the biochar matrix will last for 100s to 1000s of years, depending on the characteristics of the biochar produced eg. high temperature and high silica content found in grasses like bamboo). I've found a cheap dual output aquarium aerator pump which could aerate 2*20 litre buckets at the same time. A couple of metres of aerator pump tubing also needs to be purchased and attached to the pump and tea bag holder. The 20l buckets can be found in some restaurants or purchased on eBay. A laundry bag with a zipper could be used for the 'tea bag' and the structure holding the tea bag can be made from PVC pipe and joiners then placed in a 20 litre bucket. Just need to drill holes in the base of the holder and connect the top of the holder to an aerator ouput via the tubing. This compost tea machine needs to be tested before using the tea for widespread application. Testing involves assessing samples under a microscope or samples could be sent to the Soil Food Web Institute.
To make a compost slurry, add to an IBC inoculation bath (bottom 2/3 of IBC with tap):
For a Kon-Tiki 1.2m/1.65m
For the Flat-Tiki 'Carbon/'The Permastove V3'
Wait/inoculate for 12 hours THEN
drain off the slurry and add to TPM contents into the top third of an IBC (inverted and placed on the ground), mix ingredients together then add the mix to the place where you are growing your plants eg.
*Taylor, Dr. Paul (ed.), 'The biochar revolution: Transforming agriculture and environment', 2010, Global Publishing Group, Australia
*Woods, William I. (ed.) et al, 'Amazonian Dark Earths: Wim Sombroek's Vision', 2009, Springer, USA
* Lowenfels, Jeff and Lewis, Wayne, 'Teaming with microbes: A gardener's guide to the soil food web', 2006, Timber Press, USA
*Lowenfels, Jeff, 'Teaming with nutrients: The organic gardener's guide to optimizing plant nutrition', 2016, Timber Press, USA
*Author unknown, 'Great garden formulas: The ultimate book of mix-it-yourself concoctions for your garden', 2006, publisher and place unknown
*Reddy, Rohini, 'Cho's global natural farming', 2011, SARRA, South Korea
Many more to mention plus google searches for 'soil' and 'compost' will reveal lots of links...