News / Americas

    Special Grass for Livestock Could Cut Greenhouse Gases

    Recent studies at an international agricultural research institute in Colombia have shown that a grass used to feed livestock, known as Brachiaria, could help reduce greenhouse gas emissions from livestock and agriculture and reduce the use of commercial
    Recent studies at an international agricultural research institute in Colombia have shown that a grass used to feed livestock, known as Brachiaria, could help reduce greenhouse gas emissions from livestock and agriculture and reduce the use of commercial

    Multimedia

    Zulima Palacio

    Recent studies at an international agricultural research institute in Colombia have shown that a grass used to feed livestock, known as Brachiaria, could help reduce greenhouse gas emissions from livestock and agriculture and reduce the use of commercial fertilizers. In the United States, for example, agriculture and livestock account for six percent of greenhouse gas emissions.

    Cattle and agriculture are blamed as major contributors to greenhouse gas emissions. But chances are, these animals are much less guilty.

    They have been fed a grass known as Brachiaria as well as experimental hybrids that could dramatically cut agriculture's contribution to global warming.

    Raimundo Cruz works in the cattle industry.  He recommends Brachiaria grasses for livestock.

    "These cattle get fat very easy and offer better gains because this grass has more protein and is easier to digest," said Cruz.

    Cows fed on Brachiaria excrete much less methane, a greenhouse gas.  And Cruz says by rotating pineapple and brachiaria grasses every 6 to 8 years, he has tripled the number of cows per hectare and eliminated the use of commercial fertilizers.

    "This soil is usually very poor, it could only grow low grass," added Cruz.  "But by rotating pineapple and Brachiaria grasses, we have increased its fertility so much that it allows us to have these grasses only seen in fertile lands."

    Brachiaria is a grass for grazing widely planted in the tropics.  Recently, scientists in Colombia, with Japanese partners, discovered that besides being easy to digest and highly nutritious for cattle, brachiaria improves soil quality, and significantly reduces greenhouse gasses emitted by cattle and commercial fertilizers.

    "This is the florescence and each one of these is a seed," noted Idupulapati Rao who is studying Brachiaria at the International Center for Tropical Agriculture (CIAT) in Cali, the third largest city in Colombia.  "These grasses with great root systems exude a particular chemical compound, organic compound, that is called brachialactone…"

    And that chemical, he explains, triggers a process that inhibits the transformation of nitrogen in the soil into a powerful greenhouse gas.  Most commercial fertilizers used in agriculture worldwide use nitrogen as the main nutrient.    

    "Right now nitrogen fertilizer is like 115 million tons per year around the world," added Rao.

    Nitrogen fertilizers emit nitrous oxide, a greenhouse gas 300 times more potent than CO2, the most common greenhouse gas emitted by cars and industry.

    Rao says CIAT is researching the genetic map of brachiaria.

    "If we know what genes are involved in the production of this chemical and the release of this chemical into the soil, then we can put these genes into major field crops like maize, wheat and rice," explained Rao.

    At CIAT, scientists believe Brachiaria and its genes could have other benefits. Here, the white bags contain seeds of different varieties of Brachiaria.  Scientists are studying their attributes including resistance to drought, floods and major pests as well as ability to tolerate acid soil.

    In other fields, like this one, a hybrid Brachiaria is planted between rows of legumes.  

    Luis Horacio Franco is an agronomist at CIAT.   

    "The soil is like a bank," noted Luis Horacio Franco.  "If you just withdraw and withdraw all the nutrients, the soil goes bankrupt."

    While scientists continue to study Brachiaria's genome, they hope to spread the use of Brachiaria grasses to tropical regions in Africa and Asia.

    You May Like

    Top US General: Turkish Media Report ‘Absurd'

    General Dunford rejects ‘irresponsible' claims of coup involvement by former four-star Army General Campbell, who led NATO forces in Afghanistan before retiring earlier this year

    Video Saving Ethiopian Children Thought to Be Cursed

    'Omo Child' looks at efforts of one African man to stop killings of ‘mingi’ children

    Protests Over Western Troops Threaten Libyan 'Unity' Government

    Fears mount that Islamist foes of ‘unity' government plan to declare a revolutionaries' council in Tripoli

    This forum has been closed.
    Comments
         
    There are no comments in this forum. Be first and add one

    Featured Videos

    Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
    London’s Financial Crown at Risk as Rivals Eye Brexit Opportunitiesi
    X
    VOA News
    July 25, 2016 5:09 PM
    By most measures, London rivals New York as the only true global financial center. But Britain’s vote to leave the European Union – so-called ‘Brexit’ – means the city could lose its right to sell services tariff-free across the bloc, risking its position as Europe’s financial headquarters. Already some banks have said they may shift operations to the mainland. Henry Ridgwell reports from London.
    Video

    Video London’s Financial Crown at Risk as Rivals Eye Brexit Opportunities

    By most measures, London rivals New York as the only true global financial center. But Britain’s vote to leave the European Union – so-called ‘Brexit’ – means the city could lose its right to sell services tariff-free across the bloc, risking its position as Europe’s financial headquarters. Already some banks have said they may shift operations to the mainland. Henry Ridgwell reports from London.
    Video

    Video Recycling Lifeline for Lebanon’s Last Glassblowers

    In a small Lebanese coastal town, one family is preserving a craft that stretches back millennia. The art of glass blowing was developed by Phoenicians in the region, and the Khalifehs say they are the only ones keeping the skill alive in Lebanon. But despite teaming up with an eco-entrepreneur and receiving an unexpected boost from the country’s recent trash crisis the future remains uncertain. John Owens reports from Sarafand.
    Video

    Video Migrants Continue to Risk Lives Crossing US Border from Mexico

    In his speech Thursday before the Republican National Convention, the party’s presidential candidate, Donald Trump, reiterated his proposal to build a wall along the U.S.-Mexico border if elected. Polls show a large percentage of Americans support better control of the nation's southwestern border, but as VOA’s Greg Flakus reports from the border town of Nogales in the Mexican state of Sonora, the situation faced by people trying to cross the border is already daunting.
    Video

    Video In State of Emergency, Turkey’s Erdogan Focuses on Spiritual Movement

    The state of emergency that Turkish President Recep Tayyip Erdogan has declared is giving him even more power to expand a purge that has seen an estimated 60,000 people either arrested or suspended from their jobs. VOA Europe correspondent Luis Ramirez reports from Istanbul.
    Video

    Video Calm the Waters: US Doubles Down Diplomatic Efforts in ASEAN Meetings

    The United States is redoubling diplomatic efforts and looking to upcoming regional meetings to calm the waters after an international tribunal invalidated the legal basis of Beijing's extensive claims in the South China Sea. VOA State Department correspondent Nike Ching has the story.
    Video

    Video Four Brother Goats Arrive in Brooklyn on a Mission

    While it's unusual to see farm animals in cities, it's become familiar for residents of Brooklyn, New York, to see a little herd of goats. Unlike gas-powered mowing equipment, goats remove invasive weeds quietly and without adding more pollution to the air. As Faiza Elmasry tells us, this is a pilot program and if it proves to be successful, the goat gardener program will be extended to other areas of New York. Faith Lapidus narrates.
    Video

    Video Scientists in Poland Race to Save Honeybees

    Honeybees are in danger worldwide. Causes of what's known as colony collapse disorder range from pesticides and loss of habitat to infections. But scientists in Poland say they are on track to finding a cure for one of the diseases. VOA’s George Putic reports.
    Video

    Video Wall Already Runs Along Parts of US-Mexico Border

    The Republican Party’s presidential nominee, Donald Trump, gained the support of many voters by saying he would build a wall to keep undocumented immigrants and drugs from coming across the border from Mexico. Critics have called his idea impractical and offensive to Mexico, while supporters say such a bold approach is needed to control the border. VOA’s Greg Flakus has more from the border town of Nogales, Arizona.
    Video

    Video New HIV Tests Emphasize Rapid Results

    As the global fight against AIDS intensifies, activists have placed increasing importance on getting people to know their HIV status. Some companies are developing new HIV testing methods designed to be quick, easy and accurate. Thuso Khumalo looks at the latest methods, presented at the International AIDS conference in Durban, South Africa.
    Video

    Video African Youth with HIV Urge More Support

    HIV, the virus that causes AIDS, is the top killer of teens in sub-Saharan Africa. But many youths say their experience with the virus is unique and needs to be addressed differently than the adult epidemic. VOA South African Correspondent Anita Powell reports.
    Video

    Video Pop-Up Art Comes to Your Living Room, Backyard and Elsewhere

    Around the world, independent artists and musicians wrestle with a common problem: where to exhibit or perform? Traditional spaces such as museums and galleries are reserved for bigger names, and renting a space is not feasible for many. Enter ArtsUp, which connects artists with venue owners. Whether it’s a living room, restaurant, office or even a boat, pop-up events are bringing music and art to unexpected places. Tina Trinh has more.
    Video

    Video Scotland’s Booming Whisky Industry Fears Brexit Hangover

    After Britain’s vote to leave the European Union, Scotland’s government wants to break away from the United Kingdom – fearing the nation’s exports are at risk. Among the biggest of these is whisky. Henry Ridgwell reports on a time of turmoil for those involved in the ancient art of distilling Scotland’s most famous product.

    Special Report

    Adrift The Invisible African Diaspora

    More Americas News

    Colombia Declares End to Zika Epidemic Inside Country

    Colombia has reported nearly 100,000 cases of infection, with 21 cases of Zika-related microcephaly

    Life on the Line in Venezuela as Economic Crisis Worsens

    As country's lines have grown longer and more dangerous, they have become not only the stage for everyday life, but a backdrop to death

    Colombian Drug Lord Gets 35 Years in US Prison

    Daniel Barrera, convicted of trafficking hundreds of tons of cocaine, also fined $10 million

    Projections: Zika Could Infect More Than 93 Million in Americas

    Experts say women who are infected with Zika during the early months of their pregnancy are at highest risk of giving birth to babies with microcephaly

    Video Migrants Continue to Risk Lives Crossing US Border From Mexico

    In remote areas of the Sonoran Desert, which straddles the US-Mexico, thousands of migrants face arid desolation

    Obama: Trump’s Portrait of America ‘Doesn’t Jibe With Reality’

    At news conference with Mexico's president, Obama says US is 'not going to make good decisions' about race relations, crime ' based on fears that don’t have basis in fact'