Cross section of clay pebbles Hydroton brand expanded clay pebbles A pile of expanded clay pebbles on Hisingen, Göteborg, Sweden With the advantage of light weight, high permeability, high durability and excellent sound and thermal insulating properties, expanded clay is a good 'all round' aggregate for use in an a variety of applications. Expanded clay aggregate
Agaricus campestris is commonly known as the field mushroom or, in North America, meadow mushroom. It is a widely eaten gilled mushroom closely related to the cultivated button mushroom Agaricus bisporus. Taxonomy This species was originally noted and named in 1753 by Carolus Linnaeus as Agaricus campestris. It was placed in the genus Psalliota by Lucien Quelet in 1872. Some variants have been isolated over the years, a few of which now have species status, for example, Agaricus bernardii Quel. (1878), Agaricus bisporus (J.E. Agaricus campestris
Mushroom Observer: Image: Agaricus campestris L. (340999)
The Agricultural Revolution: Crash Course World History #1
"We are losing R50-million a month because sugar is being imported into South Africa. "This [imported] sugar is below the cost of production globally," SA Sugar Association chairman Bongani Linda yesterday told Minister of Rural Development and Land Reform Gugile Nkwinti. Earlier this year, the industry said it was in crisis as imports, particularly from Brazil, displaced its product and forced it to export its surplus at a poor price. "This year imports, especially from Brazil, are close to 400000t. It is about 17% of the demand and is equal to the production of three [South African sugar] mills. Sugar industry's bitter pill
World changing technology enables crops to take nitrogen from the air A major new technology has been developed by The University of Nottingham, which enables all of the world's crops to take nitrogen from the air rather than expensive and environmentally damaging fertilisers. Nitrogen fixation, the process by which nitrogen is converted to ammonia, is vital for plants to survive and grow. However, only a very small number of plants, most notably legumes (such as peas, beans and lentils) have the ability to fix nitrogen from the atmosphere with the help of nitrogen fixing bacteria.
Home » Natural nitrogen to boost agriculture Azotic Technologies specialises in natural nitrogen which helps address the problem of nitrogen pollution. Our technology provides every cell in the plant with the ability to fix its own nitrogen from the air. It also promotes plant growth and increases vigour. I see enormous potential for an inoculant with the attributes of Azotic’s nitrogen fixing technology. Given its ability to be used on legume and non-legume crops it could also replace the current rhizobial products which are standard practice in so many legume crops around the world. This technology could revolutionise crop production providing a new level of performance and yields.
Photo by Nigel Treblin/AFP/Getty Images This article arises from Future Tense, a collaboration among Arizona State University, the New America Foundation, and Slate. On July 25, Future Tense will be hosting an event on agriculture’s role in climate change at the New America Foundation in Washington, D.C. For more information and to RSVP, visit the New America Foundation website. Not too long ago, popular wisdom ran that molecular biologists were going to save billions of people from starvation by genetically engineering crops resistant to flood, freeze, and drought; crops that could blossom from desiccated soil and bloom in salty sand; crops that could flourish despite an atmosphere saturated with carbon dioxide and rays of sunshine riddled with radiation. A waterless seed was the next killer app. Open-source GMOs to fight climate change and take down Monsanto
Copyright © 2012 by the author(s). Published here under license by The Resilience Alliance. Go to the pdf version of this article The following is the established format for referencing this article: Kremen, C., and A. Miles. 2012. Ecosystem services in biologically diversified versus conventional farming systems: benefits, externalities, and trade-offs Ecology and Society 17(4): 40.http://dx.doi.org/10.5751/ES-05035-170440 Ecosystem Services in Biologically Diversified versus Conventional Farming Systems: Benefits, Externalities, and Trade-Offs
Soil - Our Financial Institution Permaculture Forums, Permaculture Courses, Permaculture Information & News Soil — the substance you walk on, build on, and live from — provides your food, clothing, and even the air you breathe. It gives warmth, shelter, and the goods you possess. Soil is, I believe, a substance that is under-acknowledged, and also under attack, and its misuse is contributing greatly to the excessive release of CO2 into our atmosphere – making it a large contributor to global warming. Therefore, I felt it high time we came to its defense.
Plantduino Greenhouse UPDATE 7/9/11: The AC power fed relay has been replaced with a DC battery fed relay system as shown in step 10. UPDATE: We have been selected as finalists in the microcontroller contest! Thank you for voting and rating.
How-To plastic bottle green house build guide ! How to construct a Greenhouse using Plastic Water bottles !! Well I think from the picture you have already seen, I reckon you will have a good idea as how to make your greenhouse, however take a look here à(http://www.reapscotland.org.uk/reports/greenhouse%20v1.pdf ) there were certain points on the site that I didn’t like, so I adapted my construction a little different to theirs, since my 1st green house I have adapted even more. also I used only 1.5 litre water bottles that friends on the island collect for me, in 3 months I had collected over 7000 bottles, fortunately most had easy peeling labels, the rest are awful to peel, but hey! It’s all for a great cause.
Internet of food: Arduino-based, urban aquaponics in Oakland
Build a $300 underground greenhouse for year-round gardening (Video) © Neo-farms Growers in colder climates often utilize various approaches to extend the growing season or to give their crops a boost, whether it's coldframes, hoop houses or greenhouses. Greenhouses are usually glazed structures, but are typically expensive to construct and heat throughout the winter.
This is the third in a series of articles about sustainability and specifically sustainability within the University. What are our staff members contributing in their fields of expertise; in which sustainable projects and initiatives are they involved and what contribution do they make to this important issue in the rest of South Africa? First article: Sustainability is all about the future – Prof Russel Botman Sustainability: Larva production for the benefit of man, animal and environment | News
Open field system Generic map of a medieval manor, showing strip farming, from William R. Shepherd, Historical Atlas, 1923 The open-field system was the prevalent agricultural system in much of Europe during the Middle Ages and lasted into the 20th century in parts of western Europe, Russia, and Iran. Under the open-field system, each manor or village had two or three large fields, usually several hundred acres each, which were divided into many narrow strips of land. The strips or selions were cultivated by individuals or peasant families, often called tenants or serfs.
There are fewer than 250 000 farmed ostriches in South Africa, compared with a million at the beginning of the 1900s. Yet demand and prices for ostrich leather and feathers have seldom been better and ostrich meat is also increasingly sought after internationally for its health qualities which it was not in the early 1900s. The South African ostrich industry is a potential boom sector, but the agricultural authorities have been culling flocks at an unprecedented rate because of outbreaks of avian influenza. Ostrich farms are not for chickens | Business | Africa | Mail & Guardian
Lawton's Guide To Permaculture Design and Strategy - Part 4
Urban Farms? | Daily Yeah Pictures and Videos
About the Urban Homestead project | Urban Homestead ® - Path to Freedom
Explore Cornell - Home Gardening - Vegetable Growing Guides - Growing Guide
Landshare - connecting growers to people with land to share.
Only Organics Can Feed the Hungry World: Here's Why
Farmer To Farmer: The Truth About GMO Crops (Documentary)
( Kirlian/Aura-Photography ) -of raw foods !!!
Organic rice farmer in India yields over 22 tons of crop on only two acres, proving the fraud of GMOs and Big Ag
Farmer's Weekly | Fish farming: affordable protein for SA?
Young landless Ethiopians find hope and security in beekeeping - Voices of Africa
UN warns of looming worldwide food crisis in 2013 | Global development | The Observer
Bhutan Bets Organic Agriculture Is The Road To Happiness : The Salt
Regenerative Agriculture: Feeding the Future
Guido EBNER - Morphogenetic Fields - Electrostatic enhancement of plant and animal development
The GMO debate is over; GM crops must be immediately outlawed; Monsanto halted from threatening humanity
It’s Not a Fairytale: Seattle to Build Nation’s First Food Forest
Accelerated returns in food production
Farm springbok, not sheep in Karoo: report
To Kick Climate Change, Replace Corn With Pastured Beef