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posted by janrinok on Thursday March 12 2015, @09:45PM   Printer-friendly
from the otherwise-known-as-how-we-used-to-do-it dept.

Erica Goode writes in the NYT that no-till soil-conservation farming, a movement that promotes leaving fields untilled, “green manures” and other soil-enhancing methods, is gaining converts as propnents say the technology mimics the biology of virgin land, to revive degenerated earth, minimize erosion, encourage plant growth and increase farmers’ profits, “It’s a massive paradigm shift,” says Ray Archuleta, an agronomist at the Natural Resources Conservation Service, part of the federal Agriculture Department, which endorses the soil-conservation approach. Neatly tilled fields have long been a hallmark of American agriculture and its farmers, by and large traditionalists who often distrust practices that diverge from time-honored methods. Tilling also helps mix in fertilizers and manure and loosens the top layer of the soil. But repeated plowing exacts a price. It degrades soil, killing off its biology, including beneficial fungi and earthworms, and leaving it, as Archuleta puts it, “naked, thirsty, hungry and running a fever.” Soil health proponents say that by leaving fields unplowed and using cover crops, which act as sinks for nitrogen and other nutrients, growers can increase the amount of organic matter in their soil, making it better able to absorb and retain water.

One recent study led by the Environmental Defense Fund suggested that the widespread use of cover crops and other soil-health practices could reduce nitrogen pollution in the Upper Mississippi and Ohio River basins by 30 percent, helping to shrink the giant “dead zone” of oxygen-depleted water in the Gulf of Mexico. But the movement also has critics, who argue that no-tillage and other methods are impractical and too expensive for many growers. A farmer who wants to shift to no-tillage, for example, must purchase new equipment, like a no-till seeder. Even farmers who enthusiastically adopt no-till and other soil-conservation methods rarely do so for environmental reasons; their motivation is more pragmatic. “My goal is to improve my soil so I can grow a better crop so I can make more money,” says Terry McAlister, who farms 6,000 acres of drought-stricken cropland in North Texas. “If I can help the environment in the process, fine, but that’s not my goal.”

 
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  • (Score: 5, Insightful) by bradley13 on Friday March 13 2015, @06:54AM

    by bradley13 (3053) Subscriber Badge on Friday March 13 2015, @06:54AM (#157172) Homepage Journal

    I am a generation removed from farming, although I have cousins who farm. From what I see, the best thing that could happen would be to get the federal government out of the business. In order to compete with the rest of the farmers, you have to participate in the federal programs. But these programs pressure farmers in weird directions. To name one example: the whole, ill-conceived corn/ethanol stuff that even the biofuel fans agree makes no sense.

    You also get farmers who dread having a "good year", because they make more money in bad years with crop insurance and the federal subsidies. Talk about perverse incentives...

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  • (Score: 0) by Anonymous Coward on Friday March 13 2015, @03:27PM

    by Anonymous Coward on Friday March 13 2015, @03:27PM (#157313)

    ill-conceived corn/ethanol stuff

    It is sad. It went from 'we will have less garbage and waste' to 'we will sell our food'. I remember the rotting piles of grain from the 70s/80s.

    We were throwing away the extra. So lets make something of it is a pretty good idea. But unfortunately it got perverted by money.