POLK CITY, Iowa - Because pests like fields where the same thing grows year after year, growing oats and other small grains while the main crop takes some time off can keep pests from coming back.

The practice of small-grain crop rotation has been reintroduced by a few organic growers in Iowa, such as Lehman Farms Limited in Polk County.

Farmer Aaron Lehman says it's an old idea farmers got away from, but its time has returned.

"As we got better and better at growing corn and soybeans with industrial inputs like anhydrous ammonia fertilizer and sprays for weed control," he says. "We kind of got away from using oats."

Lehman says the key is to grow the other crops, usually oats and clover, for a full year to make sure pests don't have a place to return to. It's also good for crops, and the land, in other ways.

"So by breaking it up and having this longer rotation, hopefully we can control weeds," he says. "We can control pests, and we can control diseases without using the chemical methods."

Lehman also says this idea isn't just for organic agriculture and it can work at home.

"These are things that we ought to be using all the way down to the garden level," Lehman says. "That we'll see the results in the garden by having a longer rotation, by moving those crops around. So I think it can work at all levels."

Lehman's demonstrating small grain crop rotation techniques for organic farmers and gardeners at his farm next Monday in Polk County.

It's part of Practical Farmers of Iowa's series of "Field Day" events for anyone with an interest in low-impact farming.




get more stories like this via email

In the wake of plans to reopen the Palisades Nuclear Plant in Covert Township after three years of inactivity, major tech companies have pledged to triple global nuclear energy output by 2050.

The tech giants include Amazon, Google and Meta, signing the "Large Energy Users Pledge" at a major energy conference in Houston this month. The pledge backs development of small modular reactors for data centers and artificial intelligence but raises concerns over regulations and public opposition.

M. V. Ramana, professor of disarmament, global and human security at the University of British Columbia, a physicist and nuclear expert, said nuclear energy is environmentally risky and expensive, and despite the wealth of Big Tech, he pointed out, they will not be footing the bill.

"Much of the funding for any of these activities -- whether it's building new reactors or reopening old, shuttered reactors -- is coming from the public," Ramana emphasized. "Tax money that's going in, it'll be the ratepayers' money."

For Michigan's Indigenous communities opposed to nuclear expansion, it is much deeper than just a financial issue. They urged listening to the natural world and ancestral teachings rather than allowing outsiders to dictate their future. Supporters argued expansion is crucial for meeting energy demands and cutting carbon emissions.

Critics contended most small reactors exist only on paper. They have not been built or tested, so claiming they are safe for the public, or for powering artificial intelligence and data centers is merely theoretical. Ramana warned those critics, the tech giants backing a boost in nuclear energy will be tough to stand up against.

"It is going to increase the pressure on the Department of Energy to approve funds," Ramana observed. "Not that the DOE requires any kind of prodding, they are only too happy to shovel out our money to all of these nuclear companies."

Supporters maintained small modular reactors will be safer, more efficient, and tested for reliability in powering the energy-intensive industries using them.


get more stories like this via email

A local nonprofit with a mission to advance regenerative agriculture is hoping its new video can open up an untapped world of science to a younger audience.

It is not every day kids see animated characters rapping about the importance of soil microbes but the Michael Fields Agricultural Institute created "The Soil Microbe Song" as a way to educate children.

Nicole Tautgus, agroecologist and research director at the institute, said she saw a gap in K-12 science education even she experienced, as she didn't hear the term "soil science" until she was in college. A former professor and her toddler son inspired Tautgus to write the song about soil.

"There's this concept that kids love to put their hands in the dirt, and there's this concept of healthy eating that we talk about," Tautgus outlined. "But I don't think that it gets connected very well to the soil, to the plant, to the kitchen, to the plate."

Studies shows farm soil tends to lack beneficial microbes, which help retain nutrients and suppress disease, and affect crop outcomes. Organic farming enhances microbial activity in soil. She added more people are beginning to see the importance of sharing these topics with children.

"Soil microbes are the hot topic among farming right now, and they're absolutely integral to everything that soil does," Tautgus pointed out. "So, why not introduce children to this concept? We talk to them about germs and washing their hands, but there's also a whole world of beneficial microbes."

Tautgus explained animated soil microbes parade around in the song, describing what each of their roles are, to hopefully engage children and anyone else who watches it.

"I think when you get into the world of soil microbes, it becomes technical really quickly," Tautgus acknowledged. "There's a lot of words in the video and a lot of it whizzes by, but the words weren't my goal."

The institute plans to develop accompanying lesson plans and materials in hopes the video can be used in classrooms across the state.

A Michigan nonprofit is among the groups raising concerns about a potential conflict of interest between President Donald Trump and the Line 5 tunnel project.

President Trump's national "energy emergency" order has fast-tracked more than 600 projects, including Enbridge's Line 5 tunnel, for quicker approval.

According to records from the Federal Election Commission, Trump's campaign last year received more than more than $1 million in donations from Tim Barnard, CEO of the project's contractor, Barnard Construction.

Levi Teitel, communications coordinator for Progress Michigan, called it problematic.

"We're drawing attention to this potential conflict of interest," Teitel explained. "And what it could mean for the integrity of the Great Lakes and also for our government as a whole."

Enbridge has responded in a statement saying, in part, it hired Barnard Construction Company and Civil and Building North America in 2023, during the Biden administration, following a robust and lengthy selection process.

Opponents of Line 5 have cited spill risks, Indigenous rights and the project's contribution to continued reliance on fossil fuels among their concerns.

The Michigan Court of Appeals recently affirmed the state Public Service Commission's decision to grant permits for the underwater pipeline project, rejecting legal challenges from environmental groups and tribes concerned about its ecological and cultural impact. Teitel argued the approval process for Line 5 has been flawed.

"This process should require public input," Teitel contended. "That's usually what really happens when it comes to federal permitting for fossil fuel projects. If this were fast-tracked, it could spell danger and potentially an explosion risk."

The Line 5 project involves constructing a 4.5-mile tunnel beneath the Straits of Mackinac to encase the crude oil pipeline and reduce spill risks.


get more stories like this via email