The Folly of Big Agriculture: Why Nature Always Wins

Large-scale industrial agriculture depends on engineering the land to ensure the absence of natural diversity. But as the recent emergence of herbicide-tolerant weeds on U.S. farms has shown, nature ultimately finds a way to subvert uniformity and assert itself.


| April 9, 2012



big corn field

Does this mono-culture corn field resemble in any way the diversified, natural hillside it replaced?


FOTOLIA/ELANATHEWISE

In its short, shameless history, big agriculture has had only one big idea: uniformity. The obvious example is corn. The U.S. Department of Agriculture predicts that American farmers — big farmers — will plant 94 million acres of corn this year. That’s the equivalent of planting corn on every inch of Montana. To do that you’d have to make sure that every inch of Montana fell within corn-growing parameters. That would mean leveling the high spots, irrigating the dry spots, draining the wet spots, fertilizing the infertile spots, and so on. Corn is usually grown where the terrain is less rigorous than it is in Montana. But even in Iowa that has meant leveling, irrigating, draining, fertilizing, and, of course, spraying.

You can argue whether uniformity is the result of efficiency or vice versa. But let’s suppose that efficiency is merely the economic expression of uniformity. The point is this: When you see a Midwestern cornfield, you know you’re looking at nature with one idea superimposed upon it. This is far less confusing, less tangled in variation than the nature you find even in the roadside ditches beside a cornfield or in a last scrap of native prairie growing in a graveyard or along an abandoned railroad right-of-way. Nature is puzzling. Corn is stupefying.

Humans have spent a lot of time trying to figure out what the big idea behind nature is. It’s hard to tell, because we live at nature’s pace and within the orb of human abstraction. We barely notice the large-scale differences from year to year, much less the minute ones. But if we could speed up time a little and become a lot more perceptive, we would see that nature’s big idea is to try out life wherever and however it can be tried, which means everywhere and anyhow. The result — over time and at this instant — is diversity, complexity, particularity, and inventiveness to an extent our minds are almost unfitted to conceive.

A reasonable agriculture would do its best to emulate nature. Rather than change the earth to suit a crop — which is what we do with corn and soybeans and a handful of other agricultural commodities — it would diversify its crops to suit the earth. This is not going to happen in big agriculture, because big agriculture is irrational. It’s where we expose — at unimaginable expense — our failure to grasp how nature works. It’s where uniformity is always defeated eventually by diversity and where big agriculture’s ideas of diversity are revealed to be as uniform as ever.

To a uniform crop like corn, farmers have been encouraged to apply a uniform herbicide to kill weeds. Modern corn is genetically engineered to not be killed by the herbicide in ubiquitous use. Mostly, that herbicide has been glyphosate, marketed under the Monsanto trade name Roundup. Farmers have sprayed and over-sprayed billions of gallons of Roundup thanks to an economic and moral premise: corn good, weeds bad. And yet you can’t help noticing that it has done nothing to stop the endless inventiveness of nature.

To broadleaf weeds and soil microorganisms, Roundup is not the apocalypse. It is simply a modest, temporal challenge, which is why, 15 years after genetically-engineered, Roundup-tolerant crops were widely introduced, it’s no longer working against spontaneous new generations of Roundup-tolerant weeds, especially in cotton fields. This is because research, in nature’s laboratory, never stops. It explores every possibility. It never lacks funding. It is never demoralized by failed experiments. It cannot be lobbied.





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