Growing Returns

Selected tag(s): nutrient efficiency

New research helps farmers set targets for reducing emissions

By Eileen McLellan / Bio / Published: May 26, 2015

Credit: photos.com

The easiest way to tackle fertilizer pollution is to lower the amount of nitrogen applied to crops, thereby reducing nutrient losses into the air and water. The problem is, reducing fertilizer rates can also shrink crop yields, which means less income for farmers and less food on our plates.

So here’s the question: how can we slash nitrous oxide emissions from agriculture without sacrificing productivity?

To meet this challenge, scientists need to understand the relationship between “nitrogen surplus” (the amount of applied nitrogen fertilizer not taken up by the plant), “nutrient use efficiency” (the ratio of how much yield you get from each pound of fertilizer applied) and nitrous oxide emissions that contribute to climate change. The more nitrogen a plant absorbs, the less it releases into the air in the form of nitrous oxide and into the water where it can contribute to harmful algal blooms. Read More »

Posted in Climate Resilience / Also tagged agriculture, climate change, farmers, farms, fertilizer, GHG emissions, GHG mitigation, nitrogen surplus, nitrogen uptake, nitrous oxide, sustainable agriculture, tipping point | Comments are closed

Meet Brent Bible, state trooper turned farmer and mentor

By Suzy Friedman / Bio / Twitter profile / Published: May 14, 2015

A new Purdue University study released this week found that agriculture will create nearly 60,000 jobs each year for the next five years. But to meet this growing demand, more students will need to graduate with agricultural degrees. And as the deputy secretary of the U.S. Department of Agriculture said in a recent interview, the farming sector must do more to work with students and the educational system as a whole.

That’s where growers like Brent Bible come into play. Brent is inspiring the next generation of farmers, scientists, researchers, and agronomists through his work with Purdue students who help him operate his 3,000-acre grain farm in Indiana. He’s also promoting soil health, nutrient efficiency, and sustainable agriculture through changes in on-farm practices.

I asked Brent, a former Indiana state police officer, about his transition to the agricultural world, his work with the Soil Health Partnership, and what gets him out of bed every morning. Read More »

Posted in Uncategorized / Also tagged agriculture, ecosystems, farmers, farms, fertilizer, food production, nitrogen, Purdue, Purdue University, soil health, Soil Health Partnership, sustainable agriculture | Comments are closed

Why the food movement is alive and well

By Maggie Monast / Bio / Twitter profile / Published: May 11, 2015

Mark Bittman’s recent New York Times op-ed, “Let’s Make Food Issues Real,” is a grim assessment of the current state of the food movement – in fact, he questions whether a food movement exists at all.

Bittman states that the lack of major change to government food policies means the food movement is not winning. “I’ll believe there’s a food movement when Hillary Clinton and Jeb Bush are forced to talk directly about food issues,” Bittman writes.

I’ll take that bet. With the drought in California threatening the nation’s produce and the other impacts climate change pose to our food supply, I think it’s likely that the next group of presidential candidates will discuss food issues on the campaign trail. Read More »

Posted in Partnerships, Supply Chain, sustainable agriculture, western water / Also tagged agriculture, California Air Resources Board, Carbon Offsets, climate change, drought, farmers, farms, food movement, food production, Mark Bittman, USDA | Read 2 Responses

Why you won’t see an eco-label on your corn flakes anytime soon

By Katie Anderson / Bio / Twitter profile / Published: April 28, 2015

Credit: Flickr user Mike Mozart

Corn affects every person in the United States.

It is grown on about 90 million acres, an area roughly the size of Montana. Corn is ubiquitous in the products we buy, from shampoo and sodas to ethanol and animal feed.

The crop also uses the majority of nitrogen fertilizer in agriculture, requiring more nitrogen than soybeans, cotton and wheat combined. Nitrogen is necessary to produce corn. But when nitrogen is over-applied, crops cannot absorb it all – and this can lead to air and water pollution.

Fortunately, figuring out ways to use nutrients more efficiently to reduce loss improves a farmer’s bottom line. It also gives them a competitive advantage, as more and more food companies are embracing sustainability and fertilizer efficiency as a way to reduce risk in their supply chains. Read More »

Posted in Supply Chain / Also tagged agriculture, companies, ecosystems, farmers, farms, fertilizer, food companies, food production, sustainable agriculture | Comments are closed

USDA’s new climate strategy is a huge step in the right direction

By Rebecca Shaw / Bio / Published: April 23, 2015

Credit: Flickr user Nicholas A. Tonelli

The U.S. Department of Agriculture just announced a new national climate strategy aimed at reducing emissions from the agriculture and forestry sectors. USDA will partner with farmers and ranchers on voluntary and incentive-based approaches to implement climate-smart agriculture techniques and programs. This approach will also ensure that crops are resilient to increasing fluctuations in weather and climates, and that farmers’ livelihoods are protected.

The new focus on ‘cooperative conservation’ is a huge step in the right direction.

America’s farmers face a challenge: increase productivity to feed a growing population, but do so in an era where climate is becoming increasingly unpredictable, with warmer growing seasons, droughts, and floods. Farmers are also called upon to increase production in a way that reduces greenhouse gas emissions. This is a tall order, given that if we continue with current farming practices agriculture could be responsible for 70 percent of the planet’s greenhouse gas emissions by 2050. Read More »

Posted in Carbon Market, Climate Resilience, Supply Chain / Also tagged agriculture, Carbon Offsets, Climate, climate change, conservation, ecosystems, emissions, farmers, fertilizer, food production, food security, GHG mitigation, Partnerships, sustainability, sustainable agriculture, United Suppliers, USDA, White House | Comments are closed

How to end the fertilizer guessing game

By Karen Chapman / Bio / Published: April 20, 2015

As spring planting season gets underway, many farmers are starting to wonder how much nitrogen they should apply to their crops this year to maximize yields.

The traditional approach is to apply a bit of extra fertilizer as an insurance policy to protect yields in case some of it washes away. The problem is, this is costly – nitrogen fertilizer accounts for at least half of farmers’ input costs, even though on average, 50 percent of the nitrogen applied is lost – and harmful to air and water quality.

What we need is to get to a sweet spot of fertilizer application – meaning the right amount that both protects natural resources and maximizes yields.

I asked Thomas Morris, professor of soil fertility at the University of Connecticut, about ways that research, precision agriculture tools, and data analysis can help farmers determine the right amount of fertilizer to apply to their crops. Read More »

Posted in Uncategorized / Also tagged agriculture, conservation, ecosystems, farmer network, farmers, farms, fertilizer, Land Grand University, nitrogen, nutrient pollution, soil health, sustainability, sustainable agriculture | Comments are closed

Dietary guidelines are one ingredient in the recipe for sustainable food production

By David Festa / Bio / Twitter profile / Published: April 7, 2015

Some people don’t like the idea of the federal government telling them what they should and shouldn’t eat. Others feel the science of nutrition is still evolving—are eggs good or bad for us this week?—and don’t know whether to trust the recommendations.

But there’s no denying that USDA dietary guidelines have a profound influence on the public discussion over our food choices.

So it is a good thing that the commission that suggests updates to these guidelines every five years has come forward with a proposal that for the first time recognizes an inarguable fact: dietary choices have an impact not only on our health, but also on the health of our environment. Read More »

Posted in Carbon Market, Wildlife Protection / Also tagged agriculture, Carbon Offsets, diet, fertilizer, fisheries, food, food production, GHG mitigation, Partnerships, productivity, ranching, seafood, sustainability, sustainable agriculture, USDA, western water, wildlife | Comments are closed

Let’s focus on a farm’s performance, not its size

By Suzy Friedman / Bio / Twitter profile / Published: March 17, 2015

Credit: Flickr user Dwight Sipler

What comes to mind when you think of a “family farm?” You’re probably picturing a bucolic spread of less than 100 acres, with a red barn, farmer in overalls, and cows grazing a big pasture. What about the phrase “corporate farm” or “big ag?” Do you see a giant, impersonal and industrial-looking operation?

Unfortunately, these common (mis)perceptions are regularly promoted in everything from TV ads to online chats. But the reality is that “big” does not equate to “bad,” and “small” doesn’t necessarily mean “good” when it comes to sustainable farming. In fact, it’s the wrong debate altogether.

What really matters is performance, not size.

Today is National Agriculture Day, celebrated annually on March 18, and this year’s theme is sustaining future generations. If we’re going to meet the needs of a rapidly growing population, we’re going to need large and small farms alike. And no matter their size, they’ll need to minimize their impacts on the natural systems that sustain us all. Read More »

Posted in Climate Resilience, Wildlife Protection / Also tagged agriculture, climate change, conservation, cover crops, ecosystems, farmers, farms, fertilizer, food production, soil health, sustainability, sustainable agriculture, western water | Read 3 Responses

How the private sector can help stem emissions from agriculture

By Rebecca Shaw / Bio / Published: March 12, 2015

Credit: Flickr user Rory MacLeod

Here’s the challenge: we need to feed 9 billion people by 2050, yet if we continue with current farming practices agriculture could be responsible for 70 percent of the planet’s greenhouse gas emissions by that same year, according to an official at the World Bank.

So what do we do?

We can’t just point the finger at growers and tell them to solve the problem. This is a tall order – and it will require all hands on deck: food companies, suppliers, consumers, and producers. We all need to implement climate-smart agricultural approaches on a global scale to reduce emissions, increase resilience, and protect farmers’ livelihoods.

But climate-smart agriculture absolutely cannot become mainstream without more help from the private sector. We need corporations to invest in research and to make tangible changes to their supply chains. Read More »

Posted in Climate Resilience, Supply Chain / Also tagged agriculture, Climate, climate change, conservation, farmers, fertilizer, food production, food security, GHG mitigation, Partnerships, private sector, supply chain, sustainable agriculture, Walmart | Comments are closed

No illusion here. Optical sensors can save farmers money.

By Maggie Monast / Bio / Twitter profile / Published: February 25, 2015

Precision agriculture is on its way to becoming mainstream. First, farmers need tools and technologies that make this kind of smart farming dramatically easier.

Optical sensors are one of the most promising technologies available now. This technology is very exciting because it helps farmers save money on fertilizer – and improve crop yields.

Optical sensors are devices attached to a farmer’s fertilizer applicator. As the farmer travels across the field applying fertilizer, the technology reads how green or healthy the crop is, and it applies the right amount of fertilizer in accordance with each plant’s needs. Read More »

Posted in Uncategorized / Also tagged agriculture, corn, ecosystems, farmers, farms, fertilizer, food production, precision agriculture, sustainable agriculture | Comments are closed