Showing posts with label permaculture. Show all posts
Showing posts with label permaculture. Show all posts

Monday, July 25, 2011

on matters of meat

I have just posted on Facebook about the recently released report, Meat Eater's Guide to Climate Change and Health.
Thanks to our friends at the Environmental Working Group, who have produced a very clever little chart which shows us which meats (and animal "products") have the most environmental impact.
Of course this somewhat misses the point, as there are matters of nutrition and ethics to consider. In that respect, any consumption of conventionally-produced food is going to have not just an environmental impact, but major impacts on human health and nutrition plus the attendant ethical issues relating to how these animals are treated.
You would think that it would be easier to simply switch to eating vegan wholefoods. But no. And then enter stage left, George Monbiot with a comment on this book which he read recently. Meat: a benign extravagance, by Simon Fairlie discusses the view that feedlot cattle, fed on grains is not the most effective and efficient way to raise cattle. We knew that. But then he goes on to explain that pigs raised for eating are also deprived of their natural diet (and a few other things that are natural to pigs). If we were to fix this, not only would we be better off in relation to our carbon footprint, but we could - as it were - have our meat and eat it. Not sure that i would want to pursue this path, but i can see how it must make my fellow meat-eaters feel 100% more comfortable about their food behaviours.

All of this is intertwixtedley implicated in how we approach permaculture design solutions. it is an ongoing conversation in the more enlightened of permaculture circles as to how an integrated permaculture design can meet human needs without compromising the needs of (exploiting) non-human animals. Simon Fairlie's view is clearly coloured by his experiences on a permaculture settlement. Interesting. I wonder why he won't name which permaculture community it was.

Wednesday, July 6, 2011

What the heck is permaculture?

according to David Holmgren, co-originator of Permaculture: ecological design theory applied to an everyday context

These are notes and excerpts from Week 2 of a Permaculture Design Certificate course being held in Sydney this winter 2011 at which David and his partner Su presented.

And here's a brief overview of what was covered in Week 1.

Wednesday, January 7, 2009

a note about citrus


after a little bit of investigation i believe i have found some useful solutions for the vexed question of how (and if) to compost citrus.
this is something i have been asked more than once. and i've had my fair share of grief seeing orange and lemon peel add to the slush i am attempting to remediate in my own bin right now. yes, it is acidic and the worms do not like it. and, according to Paul Stamet, there is no fungi that breaks down the volatile oils, which apparently are as much of a problem as is the acidity. after all, it is the orange oil that is used as the antiseptic agent in many of the "green" cleaners to cut grease and kill living things.
however, there are other uses. you can dry the peel and use it as fuel,
in this case there's even a commercial application. not only does the dried peel burn well, but it gives off a great aroma. you can freeze the peel and then compost it. apparently it breaks down much faster, and the freezer smells great. however the following three stage juice pulp composting recipe - from the Permaculture Discussion Forum - takes the cake for the most innovative solution:

Re: Composting citrus?
by Ichsani » Sun Sep 21, 2008 1:42 pm
Hi all
After my first attempts at juice pulp composting ended in rank, pongy failure
:puke:
I hit upon a recipe that worked- found through lots (did I say lots?) of trial and error-

1 part pulp (citrus mainly, some vege and other fruits)
1 part coffee grounds a couple of handfuls of rich soil/old compost/ leaf litter etc
some token handfuls of lime (for later)
lots of microbes and wormies (free!)
the luck of the compost faeries (with us all)

I used a three stage process - involved, but it worked better than anything else I tried.
Stage 1:
The pulp and coffee came in garbage bags when I got them - either way, mix the pulp, coffee and those handfuls of soil in one bag (it really doesn't work without this step - the coffee has effectively been heat sterilised and the pulp doesn't have many microbes in it - cause the inside of the fruit doesn't - or shouldn't. When I mixed bags without the soil/old compost added, the coffee/pulp 'mummified' and didn't break down for yonks).
Don't add any water - just the pulp, coffee and soil/old compost innoculent.

The bags can't be so full else they'll tear. After mixing twist the bag shut so there's little air and turn over so its doesn't come undone - you can stack up several bags this way. Leave in a shady spot for at least a few weeks (no sun, not even a bit - another lesson learnt).

Stage 2:
When you have enough to make a pile (mine were ~1/2 cubic metre) slice open the bags - they'll be a little whiffy but only slightly. Its not a 'knock you over' kind of pong. The coffee bits look more 'fluffy' and the pulp looks pretty much the same but the smell is 'different' to when it went in ..... don't put it on plants 'to finish off in the garden' at this stage - it'll kill seedlings and such as there is a bit of alcohol produced.

Make the pile as big as you can comfortably turn (or use one of those tumbler things for bigger jobs). I did mine in compost bays open onto the ground (this helps for stage 3).

For each bag you add, chunk in a handful of lime (its nowhere near enough lime to neutralise the acidity of the citric acid 'in theory' BUT the theory strictly only holds for an acid and an alkali by themselves....and can't account for the diversity of molecules that make up the pulp and coffee, the wonders of life, microbial succession and all that guff.
Mix the pile around and sprinkle with water - moist not sodden is the aim.
You can add some leaves or straw at this point to make the finished compost less dense but try without first then adapt the mix how you see fit next time.

Fork it around a few times a week, sprinkle with water to keep it moist. It'll get HOT after each forking. This went for about 4 weeks depending on the season and the number of times I turned it. When the pulp doesn't look like pulp any more and it doesn't really get hot after turning, its time for:

Stage 3:
Either move to a finishing bay or leave in the same spot to 'finish' out of the sun. No more forking just let the worms move in. This stage takes about 4 - 8 weeks depending on the season - shorter if its warm. It also helps to cover the pile with hessian, old felt, leaves or something to keep it humid. Leave it alone except for a bit of water now and again.

That's it.

This made perhaps the best compost I have ever produced. Rich, very dark, very sticky and very very dense. It smelt wonderfully earthy and was so densely humusy that I reckon you could have modelled figurines out of it. My 1/2 cubic metre piles became about 20 buckets worth each - less than a 1/3 of the original size.

I had to cut it 70:30 (crappy sandy soil: compost) to use it. Other, more crumbly composts I grow straight into no problem - but not this one. I tried higher amounts of this compost in pots but it dried very hard and shrunk by about 1/3 and would only wet up if submerged in a bucket - hardcore compost!

If leaves, straw etc are added at stage 2 the compost comes out more fluffy and only needs a 50:50 cut.

Out of my own curiosity I tested the pH through the stages - end of stage 1 pH ~ 4, end of stage 2 pH ~ 6-7, end of stage 3 pH about 7-9. More often it was about pH 8. After cutting with (formerly) crappy sandy soil pH was ~7. Perfect.

Like everybody else here - I would rather all that organic matter goes to making us more gardens!!!!! (rather than going to landfill to make methane to warm our toes).

Thursday, August 7, 2008

reclaiming the suburbs :: permablitz activism


OK, so that makes it sound a little risque. but hey, why not. i've been largely absent from the scene since my first blitz a couple of months ago. so sad. but what with hopping between states on a monthly basis (not recommended in the interests of reducing this carbon footprint), i haven't been home for any recent blitzes. despite that, the permablitz movement carries on and is now celebrating it's 50th blitz. here's David Holmgren waxing lyrical on permablitzing. He describes it as a "force in reclaiming the suburbs". oh dear. visions of gumboot-clad gardeners on bicycles, balancing their spades and pitchforks on handlebars, heading out to Clayton, Noble Park and other places beyond the No. 8 tram terminus. But really, it is more like this. Photographic evidence shows that it is a lot of fun, and a nice way to meet people who share interests in growing things.

Saturday, May 31, 2008

Dirt is the new prozac

reading my favourite newsletter from the permablitz folk, i have now been enlightened as to why it gardening gives me such a buzz. it appears that the humble Mycobacterium vaccae, found in garden soil, give off serotonin - which is one of the mood-altering brain chemicals commonly used in anti-depressants.
well, all i can say is that getting down and dirty in the garden sure beats popping pills. and that's what i plan to do tomorrow, when i head off to my very first permablitz experience out in the wilds of Noble Park, where Gavin and Ileana are waiting for us to transform their backyard into a permy paradise.

Thursday, May 8, 2008

guerilla gardening

i read about it in this month's permablitz newsletter. wow. this is greenie activism with a different slant. these guys look set to take over the world, one fruit tree at a time.

guerilla gardeners claim to wage war against the neglect of public spaces, according to this UK blog. sure beats sitting at home on a saturday night. and yes, there's even a chapter sprouting up in sydney. and here are some useful tips for getting started.