Articles by Tom Laskawy

Using less fertilizer has no meaningful effect on yield

Speaking of limiting the use of synthetic fertilizer, allow me to throw a little science your way courtesy of Science Daily and the USDA's Argriculural Research Service:

From 1998 to 2008, the researchers evaluated and compared potential management strategies for reducing nitrogen and nitrate nitrogen levels in soil and groundwater.

The first study showed that onions used only about 12 to 15 percent of the fertilizer nitrogen applied to the crop. Much of the remainder stayed in the top six feet of soil. The next year, Halvorson and his colleagues planted corn on the same land and found that it recovered about 24 percent of the fertilizer nitrogen that had been applied to the onion crop.

Following that study, the scientists grew alfalfa on the land for five years, then followed it with a watermelon crop, followed by a corn crop. In the first year that the corn was grown, an unfertilized control plot yielded about 250 bushels of corn.

By comparison, a plot fertilized with 250 pounds of nitrogen per acre yielded about 260 bushels, a small increase that required a significantly higher investment of time and money. Additional corn studies following onion in rotation showed corn was a good residual nitrogen scavenger crop.

With water supplies at risk, hydrologists are in high demand

From a NYT weekly jobs column, we learn of one employment area experiencing high growth:

[D]emand for hydrologists has been predicted to grow 24 percent from 2006 to 2016, much faster than the average for all occupations, according to the Bureau of Labor Statistics.

Hydrologists study the distribution, circulation and physical properties of water, with hydrogeologists focusing specifically on groundwater.

After creation of the Environmental Protection Agency..., hydrologists' work was largely focused on water quality. Today, however, "an increasing percentage of hydrologists are interested in water quantity and supply, which is an emerging issue and where global climate change plays a big role," said Dork Sahagian, professor of earth and environmental science at Lehigh University and director of its Environmental Initiative in Bethlehem, Pa.

"But concern with water quality -- which involves local, site-based issues -- still drives the job market," he said. "Most hydrologists in this part of the world are still hired to cope with the availability of clean water for drinking and municipal supplies."

With industrial chemicals like BPA contaminating our drinking water supplies which are then being squeezed both by agricultural needs and by climate change-induced droughts, the future hydrologists of the world will never lack for stuff to do.

Paul Roberts' MoJo article on farming gets big idea right and details wrong

I like Paul Roberts. I liked his book The End of Food. But I must admit that I was a bit underwhelmed by his recent article on sustainable farming in Mother Jones, "Spoiled: Organic and Local Is So 2008." That's not to say there's nothing to recommend it. His central premise -- that we way we're farming today isn't sustainable and that no large-scale model of what sustainable agriculture would look like currently exists -- is valid and important (as anyone who hangs out around here is well aware).

And any article that gets its money quote from sustainable ag guru Fred Kirschenmann is certainly on the right track. Said Kirschenmann, "We've come to see sustainability as some kind of fixed prescription -- if you just do these 10 things, you will be sustainable, and you won't need to worry about it anymore." Which isn't true, of course.

But that title! Shouldn't it be "conventional agriculture" that's so 2008? Meanwhile, there were far too many straw men in the article for my tastes (ever eaten a straw man? Blech!) Take, for example, the thought experiment supplied by environmental scientist Vaclav Smil on the effect of totally eliminating the use of synthetic fertilizer:

Such an expansion, Smil notes, "would require complete elimination of all tropical rainforests, conversion of a large part of tropical and subtropical grasslands to cropland, and the return of a substantial share of the labor force to field farming -- making this clearly only a theoretical notion."

That's probably accurate as far as it goes. But it's unclear how he modeled this version of organic agriculture - at a minimum it appears to be a vast oversimplification. And his conclusion then becomes the basis upon which to reject the whole organic concept. Meanwhile, look at one of Smil's central assumptions -- that "dietary habits remain constant," i.e. in his experiment we're all eating as much meat, high-fructose corn syrup, and processed foods as we are now. Well, to take one example, you don't have to look far to find folks who will tell you that current meat consumption, especially red meat consumption, is the sine qua non of unsustainability -- Roberts himself held forth at length on that very point in his book. By holding that constant, you've just pre-determined the outcome of your thought experiment. And look at a crucial element in Smil's calculation -- that he's trying to determine "the extra land we'd need for cover crops or forage (to feed the animals to make the manure)." Now I don't know for sure if he presumes the forage will be pasture or cereal (aka corn), but either way that's a pretty high bar he's set.

Who put the food companies in charge of food safety? We did.

Here's my plan to reform the food safety system -- take the asylum keys away from the inmates. The New York Times documents the absolute unmitigated disaster of our privatized, volunteer food safety system. But the first three paragraphs sum up the entirety of the problem:

When food industry giants like Kellogg want to ensure that American consumers are being protected from contaminated products, they rely on private inspectors like Eugene A. Hatfield. So last spring Mr. Hatfield headed to the Peanut Corporation of America plant in southwest Georgia to make sure its chopped nuts, paste and peanut butter were safe to use in everything from granola bars to ice cream.

The peanut company, though, knew in advance that Mr. Hatfield was coming. He had less than a day to check the entire plant, which processed several million pounds of peanuts a month.

Mr. Hatfield, 66, an expert in fresh produce, was not aware that peanuts were readily susceptible to salmonella poisoning -- which he was not required to test for anyway. And while Mr. Hatfield was inspecting the plant on behalf of Kellogg and other food companies, the Peanut Corporation was paying him for his efforts.

1) Where's the FDA in all this and 2) how many logical flaws can you find in this system? Nowhere and lots. Food inspections are just too darn expensive -- let's have the food companies take care of it for us. And make no mistake: our friends in the food industry really, really don't want the government snooping around. Even when mild reforms are proposed, like toughening audit standards and automatically alerting federal authorities when problems arise, the food industry screams bloody murder. Which is funny tragic when you think about it, given recent events.

If you want detailed reform proposals, ask Bill Marler. But at the end of the day there are three things that will fix food safety. Cut red tape, spend lots more money, and de-privatize the food safety business. Luckily that's just the kind of reform we're good at. We are good at doing those sorts of things.

Aren't we?