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Posts tagged: ARS

100+ Years of Tracking Nutrients Available in the U.S. Food Supply

Nutrient Content of the U.S. Food Supply: Macronutrients per Capita per Day, 1909-2010. Click to enlarge.

Nutrient Content of the U.S. Food Supply: Macronutrients per Capita per Day, 1909-2010. Click to enlarge.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

What’s in the food we eat? Have you ever wondered if the foods past generations ate as children were more nutritious than the foods you now eat, or vice versa? Well, let’s take a look at the amount of nutrients available in foods for over 100 years!

The Nutrient Content of the U.S. Food Supply is a historical data series beginning with 1909, on the amounts of nutrients available in the food supply for consumption (not nutrients consumed), on a per capita per day basis, as well as percentage contributions of nutrients by major food groups. The series provides data for food calories and the calorie-yielding nutrients which are protein, carbohydrate, and fat (total, saturated, monounsaturated, polyunsaturated, and individual fatty acids); cholesterol; dietary fiber; 10 vitamins; and 9 minerals. Food supply nutrients are closely linked to food and nutrition policy, with prominence in areas related to nutrition monitoring, Federal dietary guidance, fortification policy, and food marketing strategies. Read more »

Watching Our Water

Preventing movement of agricultural chemicals from crop fields to streams is a key part of protecting our water quality.  Here, an ARS scientist examines a farmer’s subsurface drain pipe.  Photo by ARS.

Preventing movement of agricultural chemicals from crop fields to streams is a key part of protecting our water quality. Here, an ARS scientist examines a farmer’s subsurface drain pipe. Photo by ARS.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

There’s no farming without water. Recent droughts in the United States and elsewhere underscore our need to conserve water in agricultural production, and studies have identified agricultural management practices that help protect water quality.  USDA’s Agricultural Research Service (ARS) researchers are making key contributions to these efforts.

For instance, ARS scientists use moisture information collected by satellites to develop the Evaporative Stress Index.  In 2012, this tool predicted that drought conditions were developing weeks before other drought monitoring networks made the same call. ARS researchers also use satellite data to design methods of estimating rainfall amounts in regions where setting up sampling stations would be a challenge, work that has long-range potential for improving precipitation estimates globally. Read more »

Secretary’s Column: Protecting Our Pollinators

This week, USDA and its partners released the results of the eight annual national survey of honey bee losses. The survey shows good news—fewer honey bee colonies were lost this winter than in previous years. According to survey results, total losses of managed honey bee colonies from all causes were 23.2 percent nationwide.

That figure is a significant improvement over the 30.5 percent loss reported last winter, but it is still higher than the eight-year average loss of 29.6 percent and still far above the 18.9 percent level of loss that beekeepers say is acceptable for their economic sustainability.

While we’re pleased to see improvement this year, these losses are still too high. Read more »

Helping Honey Bees’ Health

The black dot on this honey bee is a varroa mite--a parasite that sucks vital fluids like a tick, although it also acts like a mosquito transmitting viruses and other pathogens to the bee.

The black dot on this honey bee is a varroa mite--a parasite that sucks vital fluids like a tick, although it also acts like a mosquito transmitting viruses and other pathogens to the bee.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

You’ve probably heard that the honey bees in this country are in trouble, with about one-third of our managed colonies dying off every winter. Later this week, we will learn how the honey bees survived this winter. With severe weather in a number of areas in the U.S. this winter, a number of us concerned about bees will be closely watching the results.

While scientists continue work to identify all the factors that have lead to honey bee losses, it is clear that there are biological and environmental stresses that have created a complex challenge that will take a complex, multi-faceted approach to solve.  Parasites, diseases, pesticides, narrow genetic diversity in honey bee colonies, and less access to diverse forage all play a role in colony declines.  To confront this diverse mix of challenges, we require a mix of solutions – the odds are that we won’t find one magic fix to help our honey bees. Read more »

Ag Research Month at the “People’s Department”

ARS cotton technologist Paul Sawhney (left) and research leader Brian Condon examine needled-punched nonwoven products made with classical raw cotton and precleaned raw cotton, respectively.

ARS cotton technologist Paul Sawhney (left) and research leader Brian Condon examine needled-punched nonwoven products made with classical raw cotton and precleaned raw cotton, respectively.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

During the month of April we have taken a closer look at USDA’s Groundbreaking Research for a Revitalized Rural America, highlighting ways USDA researchers are improving the lives of Americans in ways you might never imagine.

Ag research month has been an excellent opportunity to showcase all the ways in which USDA is truly the “People’s Department.”

That’s how President Lincoln described it after USDA was established in 1862. More than 150 years later, we continue to find innovative ways to improve agricultural production and create new products to benefit the American people. Read more »

Celebrating Our Glorious Planet

Map of USDA’s Long-Term Agro-ecosystem Research (LTAR) sites and farm resource regions.

Map of USDA’s Long-Term Agro-ecosystem Research (LTAR) sites and farm resource regions.

During the month of April we will take a closer look at USDA’s Groundbreaking Research for a Revitalized Rural America, highlighting ways USDA researchers are improving the lives of Americans in ways you might never imagine. For example, finding sustainable ways to produce food for Americans and the growing global population.

Today is Earth Day, which gives us the opportunity to celebrate the magnificence of our planet.  It’s a day to observe and support our environmental commitment to our planet now and in the future.

USDA scientists play an important role in protecting our environment.  Much of our research is focused on finding sustainable agricultural solutions to producing food, feed and fiber to meet our nation’s and the world’s ever-growing demand.  We develop environmentally friendly practices that farmers, ranchers, and others involved in food production can integrate into their operations. Read more »