News tagged with soil fertility
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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Roots key to second Green Revolution (w/ Video)
Root systems are the basis of the second Green Revolution, and the focus on beans and corn that thrive in poor growing conditions will help some of the world's poorest farmers, according to a Penn State plant ...
Feb 21, 2010 |
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From the ancient Amazonian Indians: A modern weapon against global warming
Scientists are reporting that "biochar" -- a material that the Amazonian Indians used to enhance soil fertility centuries ago — has potential in the modern world to help slow global climate change. Mass production ...
Jan 13, 2010 |
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Farms, Fertilizers and Greenhouse Gas Emissions
(PhysOrg.com) -- Agricultural Research Service (ARS) scientists are front and center in finding out how farming affects emissions of the green house nitrous oxide (N2O).
Dec 10, 2009 |
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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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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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Fertilizers may not help poorest African farmers
(PhysOrg.com) -- Researchers have linked poverty in sub-Saharan Africa with poor soil health, but two new Cornell studies find that the recommended practice of applying more fertilizer may not help the poorest ...
Sep 24, 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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Illinois Soil Nitrogen Test measures microbial nitrogen
Contrary to the prevailing view, cereal crops derive the majority of their nitrogen from the soil, not fertilizer. Soils differ considerably in microbial activities that determine nitrogen-supplying power, and these differences ...
May 11, 2009 |
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Pesticide exposure found to increase risk of Parkinson's disease
(PhysOrg.com) -- The fertile soil of California's Central Valley has long made it famous as one of the nation's prime crop-growing regions. But it's not just the soil that allows for such productivity. Crops ...
Medicine & Health / Diseases, Conditions, Syndromes
Apr 21, 2009 |
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'Natural' nitrogen-fixing bacteria protect soybeans from aphids
An invasion of soybean aphids poses a problem for soybean farmers requiring application of pesticides, but a team of Penn State entomologists thinks a careful choice of nitrogen-fixing bacteria may provide ...
Apr 14, 2009 |
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Tree species composition influences nitrogen loss from forests
Throughout the world, nitrogen compounds are released to the atmosphere from agricultural activities and combustion of fossil fuels. These pollutants are deposited to ecosystems as precipitation, gases, and particles, sometimes ...
Mar 16, 2009 |
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Prairie soil organic matter shown to be resilient under intensive agriculture
(PhysOrg.com) -- A recent study has confirmed that although there was a large reduction of organic carbon and total nitrogen pools when prairies were first cultivated and drained, there has been no consistent pattern in these ...
Jan 15, 2009 |
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