News tagged with soil nitrogen
Keeping nitrogen in the soil and out of the water
(PhysOrg.com) -- Nitrogen is important for optimal crop production, but can be lost to leaching as nitrate. High amounts of nitrate in drinking water can be harmful to people, especially infants and pregnant women. While ...
Jun 11, 2010 |
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Straw residue helps keep nitrogen on the farm
Scientists are exploring ways to reduce non-point pollution from agriculture. A new study finds that using straw residue in conjunction with legume cover crops reduces leaching of nitrogen into waterways, ...
May 24, 2010 |
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Sugarcane farming practices contribute to global warming
(PhysOrg.com) -- The global market for sugarcane is expanding, and new research at UQ is informing improved farming practices to reduce its environmental footprint.
May 05, 2010 |
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Large amounts of nitrogen stored beneath selected agricultural areas
Large amounts of nitrogen are stored in the soils of agricultural areas in Nebraska and Maryland, according to a new study by the U.S. Geological Survey (USGS) and the U.S. Department of Agriculture (USDA). Once in the soil, ...
May 03, 2010 |
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Legumes can Reduce Need for Nitrogen Fertilizer
(PhysOrg.com) -- Adding legumes to a crop rotation has many benefits, including reducing the need for external nitrogen input.
Mar 29, 2010 |
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Studying Fertilizers to Cut Greenhouse Gases
(PhysOrg.com) -- Agricultural Research Service (ARS) scientists have found that using alternative types of fertilizers can cut back on greenhouse gas emissions, at least in one part of the country. They are ...
Nov 18, 2009 |
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Climate Change, Nitrogen Loss Threaten Plant Life in Arid Desert Soils
(PhysOrg.com) -- In the Mojave Desert winds howl across this hottest place in North America, blowing sands across Death Valley and through empty ghost towns, swirling across treeless land for hundreds of miles. ...
Nov 05, 2009 |
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Research for Organic Farming - Soya Thrives on Nitrogen From the Air
For the first time, the capacity of soya plants to absorb nitrogen from the air has been precisely determined in dry areas of Eastern Austria. The primary aim of this project, backed by the FWF Austrian Science ...
Oct 20, 2009 |
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Cooking Up Water From the Moon? NASA Studies Water Extraction With Microwaves
(PhysOrg.com) -- Intrigued by NASA lunar missions in the 1990s which suggested the existence of ice within craters at the moon's poles, NASA scientist Dr. Edwin Ethridge and his team started cooking up a way ...
Space & Earth / Space Exploration
Oct 19, 2009 |
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By Simulating Gullies, Geographers Discover Ways to Tame Soil Erosion
(PhysOrg.com) -- Dead zones in critical waterways, accelerated loss of arable land and massive famines. They're all caused by the 24 billion tons of soil that are lost every year to erosion, a phenomenon that ...
Space & Earth / Earth Sciences
Oct 12, 2009 |
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Squeezing More Crop Out of Each Drop of Water
(PhysOrg.com) -- Studies in China and Colorado by Agricultural Research Service (ARS) scientists and cooperators have revealed some interesting tactics on how to irrigate with limited water, based on a crop’s ...
Oct 09, 2009 |
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Ozone, nitrogen change the way rising CO2 affects Earth's water
Through a recent modeling experiment, a team of NASA-funded researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an ...
Jul 09, 2009 |
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Nitrogen research shows how some plants invade, take over others
Biologists know that when plants battle for space, often the actual battle is for getting the nitrogen.
Jul 06, 2009 |
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Study highlights massive imbalances in global fertilizer use
(PhysOrg.com) -- Synthetic fertilizers have dramatically increased food production worldwide. But the unintended costs to the environment and human health have been substantial. Nitrogen runoff from farms ...
Jun 22, 2009 |
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Study highlights massive imbalances in global fertilizer use
Synthetic fertilizers have dramatically increased food production worldwide. But the unintended costs to the environment and human health have been substantial. Nitrogen runoff from farms has contaminated ...
Jun 18, 2009 |
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