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View Full Version : In Cuba, a model of sustainable post-oil peak agriculture



khad
25th August 2009, 15:31
http://news.bbc.co.uk/2/hi/americas/8213617.stm


The Vegetable Gardeners of Havana

Havana relies on 200 urban farms known as organoponicos

By Sarah Murch
BBC Two's Future of Food
http://newsimg.bbc.co.uk/shared/img/999999.gif

Climate change, drought, population growth - they could all threaten future food supplies. But global agriculture, with its dependence on fuel and fertilisers is also highly vulnerable to an oil shortage, as Cuba found out 20 years ago.

Around Cuba's capital Havana, it is quite remarkable how often you see a neatly tended plot of land right in the heart of the city.
Sometimes smack bang between tower block estates or next door to the crumbling colonial houses, fresh fruit and vegetables are growing in abundance.

Some of the plots are small - just a few rows of lettuces and radishes being grown in an old parking space.

Other plots are much larger - the size of several football pitches. Usually they have a stall next to them to sell the produce at relatively low prices to local people.

Twenty years ago, Cuban agriculture looked very different. Between 1960 and 1989, a national policy of intensive specialised agriculture radically transformed Cuban farming into high-input mono-culture in which tobacco, sugar, and other cash crops were grown on large state farms.

Cuba exchanged its abundant produce for cheap, imported subsidised oil from the old Eastern Bloc. In fact, oil was so cheap, Cuba pursued a highly industrialised fuel-thirsty form of agriculture - not so different from the kind of farming we see in much of the West today.

But after the collapse of the Soviet Union, the oil supply rapidly dried up, and, almost overnight, Cuba faced a major food crisis. Already affected by a US trade embargo, Cuba by necessity had to go back to basics to survive - rediscovering low-input self-reliant farming.

City allotments
http://newsimg.bbc.co.uk/media/images/46241000/jpg/_46241994_oxenblakeway203.jpg Oxen replaced tractors when Cuba became a low-fuel economy

With no petrol for tractors, oxen had to plough the land. With no oil-based fertilisers or pesticides, farmers had to turn to natural and organic replacements.

Today, about 300,000 oxen work on farms across the country and there are now more than 200 biological control centres which produce a whole host of biological agents in fungi, bacteria and beneficial insects.

Havana has almost 200 urban allotments - known as organiponicos - providing four million tonnes of vegetables every year - helping the country to become 90% self-sufficient in fruit and vegetables.

Alamo Organiponico is one of the larger co-operatives, employing 170 people, built on a former rubbish tip that produces 240 tonnes of vegetables a year.

There is a wide range of crops planted side by side and brightly coloured marigolds at the edges.
http://newsimg.bbc.co.uk/media/images/46241000/jpg/_46241216_vegetablerows226.jpg Car parks and rubbish tips have become vegetable plots

"We produce all different kinds of vegetables," says farmer Emilio Andres, who is proud of the fact that his allotment feeds the local community.

"We sell to the people, the school, the hospital, also to the restaurant and the hotel.

"It's important because it's grown in the city, it's fresh food for the people, it's healthy food, and it provides jobs for the people here too.
"We don't spray any chemicals. We only spray biological means like bastilos - a bacteria and fungus to kill the pests. And we use repellent plants like marigolds to keep away the pests.

"When I see all of these healthy crops, without too many pests, grown without any chemicals, it's amazing for me - I am making a contribution for the people that get healthy crops, healthy products."

Healthy diet

The organiponico uses raised beds filled with about 50% high-quality organic material (such as manure), 25% composted waste such as rice husks and coffee bean shells, and 25% soil. http://newsimg.bbc.co.uk/shared/img/o.gif
As well as marigolds, basil and neem trees are planted around the containers to keep the aphids and beetles at bay. Sunflowers and corn are also planted around the beds to attract beneficial insects such as ladybirds and lace wings. Sticky paper or plastic funnel-shaped bottles are positioned throughout the beds to trap harmful pests that do get into the garden.

And the methods work. Lettuce, tomatoes, peppers, squash, sweet potatoes, spinach, herbs and many other crops are grown in huge quantities and sold cheaply. Mangoes are 2 pence (3 US cents) a pound. Black beans 15p (25 cents) and plantain, just 12p (20 cents).

At the time of the oil shock, average calorie consumption in Cuba dropped by a third to dangerously low levels. Since then they have bounced back and Cubans eat just a little less than people in the UK.

The biggest difference is that a Western diet includes about three times as much food energy from animal products like meat and dairy.

The Cuban diet is much less fatty and requires less fuel to produce. A far less varied diet than in the West, it is also much healthier. The standard lunch for the farm workers is black beans, potatoes and rice.

Cuban agricultural researcher, Fernando Funes reckons the rest of the world has something to learn from the Cuban agricultural story.

"Well, do you have oil forever? And there also other considerations like global warming, nature conservation... the conventional way of farming generates a lot of damage to the environment and to human health.

"Developed countries as well as developing countries should pay a lot of attention to this kind of agriculture which takes care of land, people, environment and is also efficient and productive. You can combine both."

PC-Basher
26th August 2009, 16:21
dammit that's great.

This method of using oxen reminds me of the old days and Amish people. I totally understand the oxen and all, but in this day and age? wow.

No more oil, move to hydrogen? :confused: in a couple more dozen years perhaps, good thing i'll be alive for it:) i hope:(

bellyscratch
26th August 2009, 16:36
There's a really good video on this. I'll have a look on youtube to see if I can find it

EDIT:

http://www.youtube.com/watch?v=jRz34Dee7XY

Muzk
26th August 2009, 21:12
No more oil, move to hydrogen? :confused:

Creating hydrogen costs more energy than the outcome is.
To get more energy out of this, you would need to totally destroy the atoms, which is not possible.

Muzk
26th August 2009, 21:14
No more oil, move to hydrogen? :confused:

Creating hydrogen costs more energy than the outcome is.
To get more energy out of this, you would need to totally destroy the atoms, which is not possible.




Anyways, this just shows that noone really needs oil to live, or feed lots of people.

Go Cuba!

Oh crap I hit reply or something rather than edit, first time this shit happens

khad
26th August 2009, 22:00
dammit that's great.

This method of using oxen reminds me of the old days and Amish people. I totally understand the oxen and all, but in this day and age? wow.

No more oil, move to hydrogen? :confused: in a couple more dozen years perhaps, good thing i'll be alive for it:) i hope:(
I don't know if you've heard of peak phosphorous, but we will need to go back to manure at some point to replenish the world's phosphorous supply. Phosophorous content in the soil has been throughout natural history a limiting factor in the growth of ecosystems, and we are at peak and are going to approach depletion within a couple of generations. The world's phosphate supply is quickly being depleted through the production of artificial fertilizers. Manure, however, is nature's way of returning phosphates to the soil.

http://www.energybulletin.net/node/33164

Salyut
27th August 2009, 09:15
I don't know if you've heard of peak phosphorous, but we will need to go back to manure at some point to replenish the world's phosphorous supply. Phosophorous content in the soil has been throughout natural history a limiting factor in the growth of ecosystems, and we are at peak and are going to approach depletion within a couple of generations. The world's phosphate supply is quickly being depleted through the production of artificial fertilizers. Manure, however, is nature's way of returning phosphates to the soil.

http://www.energybulletin.net/node/33164

Its not quite that bad (http://peakoildebunked.blogspot.com/2007/12/321-peak-phosphorus.html). Mind you manure should be reused, otherwise it kinda...turns into this god awful quick sand like mud and oh god its horrible. ;_;

PC-Basher
27th August 2009, 12:36
I don't know if you've heard of peak phosphorous, but we will need to go back to manure at some point to replenish the world's phosphorous supply. Phosophorous content in the soil has been throughout natural history a limiting factor in the growth of ecosystems, and we are at peak and are going to approach depletion within a couple of generations. The world's phosphate supply is quickly being depleted through the production of artificial fertilizers. Manure, however, is nature's way of returning phosphates to the soil.



I dont know much about agri science.

How about worm poo poo, haha ive heard they do wonders :) and crop rotation (or whatever it's called) where people change plants around to neutralise Soil PH and nutrients. I'm not very sure about this stuff as i said, i'm no agricultural scientist with a PHD

ev
28th August 2009, 04:51
Imagine if the US implemented an agricultural system like that but utilized their technological and economic advantage - they would save billions on their health-care system because people would be eating a lot healthier, the workers would also have more energy and be more productive which means more productivity and efficiency, their economy could only benefit from such policies..

Silly US politicians.. :rolleyes:

Blackscare
28th August 2009, 05:20
There's a documentary that is all about how Cuba handled the food crisis of 1991.

The Power of Community: How Cuba Survived Peak Oil.

http://video.google.com/videoplay?docid=-1721584909067928384&ei=tVqXSpvqHJTiqgKOmPl5&q=the+power+of+community+how+cuba+survived+peak+oi l&hl=en&client=firefox-a