Category: Sustainable Settlement and Agriculture

The Generator is founded on the simple premise that we should leave the world in better condition than we found it. The news items in this category outline the attempts people have made to do this. They are mainly concerned with our food supply and settlement patterns. The impact that the human race has on the planet.

  • Farmers seek organic fertiliser solutions

    In his own work around Wee Waa, NSW, Dr Rochester has seen vetch rotations regularly fix up to 200 kilograms of nitrogen per hectare under dryland conditions—and deliver a wealth of other benefits that combined, increased gross margins by up to $540 per ha.

    “This last year we got over 5.5 bales of cotton an acre, with no nitrogen, using legume systems,” Dr Rochester said.

    Cotton grower John Phelps, who has been trialling vetch rotations on his Wee Waa property “Havana” for about six years, said he has reduced his formulated nitrogen applications by 40 per cent, and hopes to reduce it further.

    Vetch, which is grown out and then slashed and mulched into the soil as a “green manure” before it begins to hay off, has proved a stand-out soil ameliorant, but faba bean runs a handy second and provides the additional attraction of a cash crop.

    “Within a continuous cotton system where cotton was planted year after year, growing vetch reduced the amount of nitrogen fertiliser required for cotton by 140 kg per hectare to achieve maximum yields,” Dr Rochester said.

    “Coupled with increased yield, the gross margin per hectare for this system [compared to not growing vetch] was increased by $390.”

    Average nitrogen fertiliser applications in the cotton industry now stand at around 200 kilograms per hectare, and are increasing.

    Under a wheat-vetch-cotton rotation, gross margins improved by $270/ha compared to not growing vetch, with the biggest results coming in a vetch-fallow-cotton rotation that saw gross margins leap by $540/ha.

    “Although vetch is not an income producing crop itself, the $100 per hectare cost of growing it is substantially outweighed by the financial benefits accrued for the following cotton crop.”

    Those benefits cover a range of soil improvements, including and increase in soil organic matter of 14 per cent—and the annual accumulation of a tonne per hectare of total soil carbon, which itself may deliver a cash return under an emissions trading system.

    Dr Rochester attributes the jump in organic matter and carbon not just to the vetch, but a permanent-bed tillage system that minimises soil disturbance, and thus the soil nitrogen that is normally consumed when soil is turned over and microbial activity accelerated.

    The combined effect has been the improvement in a range of soil properties, including water infiltration and water-holding capacity, that collectively deliver a beneficial boost to crops.

    Following vetch, cotton crops are able to absorb greater amounts of nutrient, including nitrogen, phosphorus, potassium, zinc and copper; while detrimental sodium uptake is reduced.

    Management also becomes easier. The interaction between plants and healthy soils tends to self-regulate the delivery of nitrogen, so that the crop isn’t hit with a nitrogen overdose if conditions start to dry out.

    “The nitrogen is in an organic form, so it’s slow release, and it cycles between organic and inorganic forms, so that its cycling more rapidly and the crop has access to the mineral nitrogen,” Dr Rochester said.

    “It all becomes less risky—you can rely on the nitrogen being there when you need it.”

    It doesn’t have the flexibility of nitrogen fertiliser, he observed, but because organic nitrogen is more stable, the last-minute rush to add N to a potentially high-yield crop may not be so necessary. However, it remains an option to those who want to capitalise on yield in a big year.

  • Farmers want governments to keep out of trough

    From The Land 

    The best policy response to food shortages is to let the market do its thing, according to the National Farmers Federation.

    Responding to the release of a new report “High Food Prices – Causes, Implications and Solutions”, NFF president, David Crombie, said if the United Nations’ stated goal of a 30pc increase in global food production by 2030 is to have any hope of coming to fruition, the paramount objective of food policy must be to encourage a workable system of production, distribution and consumption.

    “This means a global recommitment to agricultural research and development investment in pursuit of higher farm productivity – including technologies, new plant varieties, inlcuding genetically modified crops, new farming systems and irrigations systems, with a focus on climate adaptation,” Mr Crombie said.

    “Foreign govenrments must leave their domestic policies at home and once and for all abandon their trade distorting subsidies, tarrifs and other artificial barriers, which only mire production by sending the wrong market signals to farmers as food producers.”

    Mr Crombie said govenrments must not intervene to impose limits on food exports, nor distort the flow of food stocks to the production of bio-fuels.

    “The only workable policy response is to facilitate an open, market-oriented system for the production, distribution and consumption of food that enable farmers to respond to genuine market demands and ensure consumer needs are met.”

  • Fertiliser prices soar to $1600 per tonne

    The Fertiliser price hike has continued apace – and the bad news for Australian growers is that international price rises are going up faster than domestic ones.

    With most farmers already sorted for their 2008 phosphate needs, the jump of close to $200/t in phosphate (P) products such as MAP and DAP in the past three weeks will not have an impact this season, but casts a pall over their affordability in 2009.

    Although no blanket figure can be quoted – suggestions are that farmers would generally be paying $1600/t or moren for new up-country deliveries.

    Tight international supply, favourable grain prices are the drivers behind the continued demand, along with strong demand from Indian buyers.

  • Fungus improves ethanol production

    The remaining liquid, known as thin stillage, still contains some solids, a variety of organic compounds from corn and fermentation as well as enzymes. Because the compounds and solids can interfere with ethanol production, only about 50 percent of thin stillage can be recycled back into ethanol production. The rest is evaporated and blended with distillers dried grains to produce distillers dried grains with solubles.

    The researchers added a fungus, Rhizopus microsporus, to the thin stillage and found it would feed and grow. The fungus removes about 80 percent of the organic material and all of the solids in the thin stillage, allowing the water and enzymes in the thin stillage to be recycled back into production.

    The fungus can also be harvested. It’s a food-grade organism that’s rich in protein, certain essential amino acids and other nutrients. It can be dried and sold as a livestock feed supplement. Or it can be blended with distillers dried grains to boost its value as a livestock feed and make it more suitable for feeding hogs and chickens.

    Van Leeuwen said all of that can save United States ethanol producers a lot of energy and money at current production levels:

    • Eliminating the need to evaporate thin stillage would save ethanol plants up to $800 million a year in energy costs.

    • Allowing more water recycling would reduce the industry’s water consumption by as much as 10 billion gallons per year. And it allows producers to recycle enzymes in the thin stillage, saving about $60 million per year.

    • Adding value and nutrients to the livestock feed produced by ethanol plants would grow the market for that feed by about $400 million per year.

    • And the researchers’ fungal proc

      ess would improve the energy balance of ethanol production by reducing energy inputs so there is more of an energy gain.

    Van Leeuwen estimated it would cost $11 million to start using the process in an ethanol plant that produces 100 million gallons of fuel per year. But, he said the cost savings at such a plant could pay off that investment in about six months.

    Van Leeuwen and the other researchers developing the technology – Anthony L. Pometto III, a professor of food science and human nutrition; Mary Rasmussen, a graduate student in environmental engineering and biorenewable resources and technology; and Samir Khanal, a former Iowa State research assistant professor who is now an assistant professor of molecular biosciences and bioengineering at the University of Hawai‘i at M?noa – recently won the 2008 Grand Prize for University Research from the American Academy of Environmental Engineers for the project.

  • Britain prepares for food crisis

    If the trucks stopped moving, we’d start to worry and we’d head out to the shops, stocking up our larders. By the end of Day One, if there was still no petrol, the shelves would be looking pretty thin. Imagine, then, Day Two: your fourth, fifth and sixth meal. We’d be in a panic. Day three: still no petrol.

    What then? With hunger pangs kicking in, and no notion of how long it might take for the supermarkets to restock, how long before those who hadn’t stocked up began stealing from their neighbours? Or looting what they could get their hands on?

    There might be 11 million gardeners in Britain, but your delicious summer peas won’t go far when your kids are hungry and the baked beans have run out.

    It was Lord Cameron’s estimation that it would take just nine meals – three full days without food on supermarket shelves – before law and order started to break down, and British streets descended into chaos.

    A far-fetched warning for a First World nation like Britain? Hardly. Because that’s exactly what happened in the U.S. in the aftermath of Hurricane Katrina. People looted in order to feed themselves and their families.

    If a similar tragedy was to befall Britain, we are fooling ourselves if we imagine we would not witness similar scenes of crime and disorder.

    Well, today Britain is facing a very real crisis. Granted, it is not the threat of a sudden, terrifying phenomenon such as the hurricane that struck New Orleans. But in its capacity to cause widespread hardship and deprivation nationwide, it is every bit as daunting.

    Oil prices are spiralling – $120 a barrel this week, up 23 per cent since the start of the year – and the cost is being felt not only by drivers but by each and every one of us who has seen our food bills soaring.

    This week, the British Retail Consortium revealed that food price inflation had risen to 6 per cent – the highest figure since comparable records began – and up from 4.7 per cent in April and 4.1 per cent in March.

    At its most basic, the reasons for this food inflation are twofold: increasing demand (particularly in the emerging economies of India and China) and spiralling production costs.

    The former had been predicted for years, but the latter is more unexpected.

    Conventional wisdom had it that in an age of mechanisation, the cost of producing the food that we eat would decrease as technology found new ways of improving yields and minimising labour costs. But there was a problem that hadn’t been factored in. Production methods are now such that 95 per cent of all the food we eat in the world today is oil-dependent.

     

    The ‘black gold’ is embedded in our complex global food systems, in its fertilisers, the mechanisation necessary for its production, its transportation and its packaging.

    For example, to farm a single cow and deliver it to market requires the equivalent of six barrels of oil – enough to drive a car from New York to LA.

    Unbelievable? One analysis of the fodder pellets which are fed to the vast majority of beef cows to supplement their grazing found that they were made up of ingredients that had originated in six different countries. Think of the fuel required to transport that lot around the world.

    Now factor in the the diesel used by the farm vehicles, the carbon footprint of chemical fertilisers used by most nonorganic beef farms and the energy required to transport a cow to the abattoir and process it. The total oil requirement soon adds up.

    And so as oil prices have risen, so too has the cost of food – and I’m afraid it’s only set to get worse. The age of cheap food is at an end – and it will impact not only on our supermarket bills, but on the whole economy.

    Fifty years ago, food represented around 30 per cent of the average household budget, whereas nowadays it is nearer to 9 per cent.

    In other words, cheap food has not only helped keep inflation down, it also allowed the postwar consumer boom to flourish.

    With our most basic and necessary commodity – the food on our plates – costing proportionally less every decade, we had plenty of free capital to spend on luxuries: flat-screen TVs; the holidays abroad; the home improvements and extensions that so many of us have acquired.

    That’s all set to change in a major way. A new era of austerity is approaching, and we are illpreparedfor its scale and effect. As a farmer myself, who runs a smallholding in Somerset, I was one of the first to detect the winds of change, as the prices for my animal feed rose.

    This time last year, it cost me around £7.50 a month to feed one of my pigs. Today, as wheat prices nudge upwards towards £180 a ton, that figure is closer to £15 a month.

    Over the past year, wheat prices have doubled, leading not only to increases in the price of bread, but also to demonstrations by pig farmers like me who are going out of business just as fast as you can fry your bacon.

    And while wheat farmers might be having a brief moment of glory in the sunshine of rising prices as the world competes for rapidly decreasing supplies, the crisis is hitting home in ways that I certainly never expected to see in my lifetime.

    In a report published on Thursday, 18 charities found that many disabled people and poorer pensioners are having to go short of food in order to pay for home care or simple things such as transport to their local day care centre.

    Sue Bott, director of the National Centre for Independent Living, said: ‘The shocking reality is that people are being forced to choose between eating properly and using vital care services.’ So much for our civilised society.

    It’s not just a matter of cost, either, but of real shortages. In the U.S., supplies of rice are so low that retail giant WalMart has been rationing the amount any one customer can buy.

    Is that a prospect that now lies ahead of us – a life of rationing similar to the one my parents lived in the years immediately following the war, when we eked out tiny rations of orange juice, and a banana was an almost unheard of treat?

    If so, how will a nation that has grown accustomed to having what it wants, when it wants, cope? We are no more used to real deprivation than we are to the pandemic diseases that claimed so many British lives a century or so ago.

    Yet the truly shocking fact is that the Government has made no plans at all to prepare for this possibility. Indeed, it has utterly failed to address the vital issues surrounding our food supplies and security.

    For years, experts who warned that the combined impact of climate change and oil depletion would converge and plunge food supplies into crisis have been ignored.

    John Krebs, former chair of the Food Standards Authority (FSA), told me recently that not only was the issue not even considered, it was laughed at when anyone dared suggest that a country so apparently bountiful as ours could one day find itself facing a food shortage. But Britain, as an island nation, is particularly vulnerable. We have not been self-sufficient in food since the late 18th century, but the situation is rapidly worsening.

    In 1995, 27 per cent of UK food was imported. By 2006 it was 37 per cent. The situation is obviously more critical in cities: London imports more than 80 per cent and a food shortage would hit the capital the hardest.

    The situation is worsened, of course, by the fact that we are having to compete for supplies on the global market with many more nations than ever before.

    For centuries, the typical Chinese diet consisted of rice and vegetables, but as the Chinese pour into the newly emerging cities, so their diets are changing. In 1962, the average Chinese ate just 4kg of meat per year: by 2005 that figure was 60kg and rising.

    The result has placed huge pressure not only on prices, but on natural resources required to cope with this increased demand.

    It is not simply that we do not have enough land to grow the grain to feed the animals which in turn feed us. In the past two decades, pressure on our natural resources has increased to a level which many experts fear has become unsustainable.

    For example, in the U.S., the use of hydrocarbon pesticides has increased 33 times as farmers sought to increase production and yet, as soil structures weaken due to over-use and mono-crop cultivation, more crops are being lost to pests every year.

    The world has a finite supply of fresh water too, yet 70 per cent of all freshwater is used for agriculture, often horribly wastefully.

    For example, it takes four litres of water to grow a single Kenyan green bean stem which we in Britain import by the ton – and this is from an officially ‘ water-stressed’ country. And that’s before we factor in climate change, which many believe will render great swathes of land infertile.

    Certainly, intensive farming methods are only adding to the problem: according to the UN, animal farming now accounts for a fifth of global greenhouse gas emissions, due to forest clearances and the methane emitted by cattle.

    The net result is a looming crisis of which soaring oil prices could simply be the starting gun.

    In this regard, the dominance of the supermarkets in British food retailing contributes massively to our vulnerability. Rising energy prices have an immediate impact on many of the food giants’ common practices.

    Their reliance on diesel trucks for ‘Just in time delivery’ and ‘ warehousing on wheels’; their endless plastic packaging and their transportation of processed foods and raw materials around the world means that our supermarkets have been hit doubly hard by the high oil price.

    (How much longer, I wonder, will the seafood business Young’s of Scotland find it economic to fly prawns to Thailand to be cleaned and de-shelled, before flying them back to Scotland for packaging)?

    During the fuel protests of September 2000, we caught a glimpse of how even the supply of basic foodstuffs are dependent on oil: Justin King, the CEO of Sainsbury, warned Blair that we would be ‘out of food’ within ‘days not weeks’ if the protests continued.

    Today, we stand on the brink of a longer-term problem. In the words of Tim Lang, Professor of Food Policy at City University, London: ‘We are sleep-walking into a crisis.’

    Yet even now, the Government has not woken up to the immediacy of the problem. Indeed, it doesn’t even have a coherent means of taking control of the situation. Food, and its related issues, currently straddles no fewer than 19 different ministries.

    When I questioned Joan Ruddock about whether the Government would change its policy about allowing pig farmers to feed their animals swill made from left-over food scraps (a practice banned after the food-and-mouth outbreak) she replied that she couldn’t answer the question because it fell under the jurisdiction of a different department.

    This is madness. Food, along with shelter and safety, is one of our most basic needs. Professor Lang believes that nothing short of a radical change in our diets – away from meat and towards vegetables and grains – will solve the problem long term.

    But in the meantime, alarm bells should be going off all over Westminster about the scale and impact of the impending food crisis.

    Suddenly, that warning of being ‘nine meals from anarchy’ no longer seems such a distant or improbable threat.

  • WA wheat crop on knife edge

    The potential for a record cropping season in WA this year is on a knife edge, with rain now needed urgently to realise the optimistic ProFarmer crop forecast released this week.

    While most of WA’s South West districts benefitted from heavy rain last weekend, to set up record canola and wheat plantings, the major broadacre grain-growing areas in the north of WA’s wheatbelt, central and southeast Wheatbelt are still in need of more rain.

    Hopes are high that a forecast frontal system will deliver substantial rains to the areas on Friday this week.

    Between 15-25mm is needed to kick crops up and away and set up yield potential.

    Rain also is needed to freshen up drying pastures for livestock.

    Broomehill, WA, farmers Craig and Brant Dennis however, will finish their cropping program this week after a timely 32mm of rain.

    “It was getting a bit dry and we’re still hand feeding sheep,” Craig said.

    “But we’ve been going 24 hours a day for the last four weeks to get the crop in and last weekend’s rain was very timely.

    “During the dry period we stuck to sowing into the stubbles and we’re finishing up on the pastures this week.

    “Hopefully we’ll get more rain soon to push the crop germinations and get a good go at the remaining weeds.”