Tag Archives: weed

Crop rotation for profit

Want better yields and the same or more profit? Stop buying pesticides, rotate more crops over longer periods, and mix in animals. Yet another study confirms this. Oh, and a hundred times less disease-causing pesticides in streams, and presumably also less pesticides in the food going to market.

Mark Bittman wrote for NYTimes today, A Simple Fix for Farming,

The study was done on land owned by Iowa State University called the Marsden Farm. On 22 acres of it, beginning in 2003, researchers set up three plots: one replicated the typical Midwestern cycle of planting corn one year and then soybeans the next, along with its routine mix of chemicals. On another, they planted a three-year cycle that included oats; the third plot added a four-year cycle and alfalfa. The longer rotations also integrated the raising of livestock, whose manure was used as fertilizer.

Figure 3. Multiple indicators of cropping system performance.

The paper’s Figure 3 (above) illustrates that labor increased with crop rotation length, but so did yield, and profit remained the same or better. How can this be? Continue reading →

Weeds winning against Glysophate

Chuck Darwin was right! Glysophate is losing to mutant weeds.

Gus Lubin wrote in Business Insider 9 June 2011, Dramatic Proliferation Of Herbicide-Resistant Weeds Threatens U.S. Crops

Researchers at Iowa State University warn that herbicide-resistant weeds are proliferating and may jeopardize U.S. food supply.

In an article published in Journal of Agricultural and Food Chemistry, weed scientist Michael Owen said the proliferation of superweed “has been fairly dramatic in the last two to three years.”

Weeds are developing resistance to glyphosate, the active ingredient in Roundup, which has been used extensively since 1996.

U.S. soybean, cotton and corn production could suffer from further proliferation, according to Science News:

“Today, 98 percent of U.S. soybeans, 88 percent or so of U.S. cotton and more than 70 percent of U.S. corn come from cultivars resistant to glyphosate,” Owen reports. Reliance on these crops — and an accompanying weed-control strategy that employs glyphosate to the exclusion of other herbicides — “created the ‘perfect storm’ for weeds to evolve resistance,” Owen and Jerry Green of Pioneer Hi-Bred International in Newark, Del., argue in their new analysis.

Oh, you mean like this pigweed-infested cotton from last year? The Palmer amaranth is already just as bad this year.

It’s not like this is news. We’ve been going on about it Continue reading →

Forbes admits it was wrong about Monsanto

Robert Langreth writes in Forbes that Forbes Was Wrong On Monsanto. Really Wrong.
Forbes made Monsanto the company of the year last year in The Planet Versus Monsanto. I know because I wrote the article. Since then everything that could have gone wrong for the genetically engineered seed company….has gone wrong. Super-weeds that are resistant to its RoundUp weed killer are emerging, even as weed killer sales are being hit by cheap Chinese generics. An expensive new bioengineered corn seed with eight new genes does not look impressive in its first harvest. And the Justice Department is invesigating over antitrust issues. All this has led to massive share declines. Other publications are making fun of our cover story.
Maybe Forbes should improve its “invesigating” [sic] skills.

-jsq