Straying a little more off topic (and to butt heads with Ludi

), I don’t understand what is “permanent” about planting tomatoes under a tree when they will need to be planted somewhere else when they become shaded. It doesn’t matter if you are in the Kalahari – tomatoes don’t grow well in the shade.
I have a great little book from 1920 something (actually a condensed version of an earlier book) titled “Tree Crops - A Permanent Agriculture”. The author points to several examples of generations of people in different regions, planting tree crops instead of row crops; chestnuts in Corsica, persimmons in China, walnuts, mulberries, oaks, etc.
The idea of permanent planting isn’t new, nor is it new to me; I’ve planted persimmons, mulberries (pig food) wild plum, and a variety of small vine fruit, grapes and berries on the new place so far, with plans for much more. I’m improving the makeup of the pastures, hedgerows and woodlot as well. After several years of merrily “spreading straw and sprinkling seed”, I’ll also have several thousand sq ft of fast warming, well drained and pretty weed free raised beds – with a winter cover crop (wheat perhaps) killed in the spring I won’t need to till, just plant through the mulch. To me those are somewhat permanent improvements that will be here for my grandkids if they want them.
However, though much of it only needs doing once, I don’t know how those things get done without work – trees don’t plant themselves, a hedgerow doesn’t lay itself, surprisingly that straw doesn’t magically appear at the edge of the garden (even killed mulch needs to be planted and killed). Just harvesting and preserving enough food to last a year with a little left to sell, while more enjoyable than sitting in a marketing meeting, doesn’t happen from the lawn chair. It’s a far cry from homegrown ‘maters to growing enough real food to live on.
But of course the point of the thread is harvesting grains; apples and tomatoes are nice treats but they don’t keep many people from starving. 620 million tons of wheat was produced last year and that doesn’t happen by sprinkling seeds.
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Just to repeat my real point here, the problem as I see it will be that pip and C-V and everyone in the same boat see that the cost of inputs are rising and the income isn’t (due to the market setting the price and not the farmer) and so decide to either:
Change crops (even diverting 15% of production to oil crops as pip mentioned)
Go smaller as C-V said
Or quit altogether
Because so many farmers are in similar situations it could be that a large percentage decides to take one or another of those courses at the same time – a Tipping Point is the currently fashionable term. Consumers will see the biggest rise in food price over the shortest period ever and it won’t necessarily be due to a huge hike in prices – just an incremental erosion of the farmer’s ability to make a living.
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BTW pstarr, according to this article from 6/3/05 (which I posted elsewhere) Taskforce is correct and in fact ag like most industries has become more – not less efficient since ’76:
“The US food system uses over 10 quadrillion Btu (10,551 quadrillion Joules) of energy each year, as much as France's total annual energy consumption. Growing food accounts for only one-fifth of this. The other four-fifths is used to move, process, package, sell, and store food after it leaves the farm. Some 28% of energy used in agriculture goes to fertilizer manufacturing, 7% goes to irrigation, and 34% is consumed as diesel and gasoline by farm vehicles used to plant, till, and harvest crops. The rest goes to pesticide production, grain drying, and facility operations”
http://www.atimes.com/atimes/Global_Eco ... 3Dj01.html
(I guess I don't work too hard - I've been sitting here for an hour!)
The legitimate object of government, is to do for a community of people, whatever they need to have done, but can not do, at all, or can not, so well do, for themselves -- in their separate, and individual capacities.
-- Abraham Lincoln, Fragment on Government (July 1, 1854)