Search results for crop residue:
Burying crop residues at sea may help reduce global warming
Feb 02, 2009 |
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Imagine a massive international effort to combat global warming by reducing carbon dioxide - build up in the atmosphere. It involves gathering billions of tons of cornstalks, wheat straw, and other crop residue from farm ...
Crop Residue May Be Too Valuable to Harvest for Biofuels
Jul 15, 2008 |
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(PhysOrg.com) -- In the rush to develop renewable fuels from plants, converting crop residues into cellulosic ethanol would seem to be a slam dunk.
Some of Earth's climate troubles should face burial at sea, scientists say
Jan 28, 2009 |
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(PhysOrg.com) -- Making bales with 30 percent of global crop residues -- the stalks and such left after harvesting -- and then sinking the bales into the deep ocean could reduce the build up of global carbon ...
A model to measure soil health in the era of bioenergy
Nov 19, 2008 |
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One of the biggest threats to today's farmlands is the loss of soil organic carbon (SOC) and soil organic matter (SOM) from poor land-management practices. The presence of these materials is essential as they do everything ...
Nitrogen applied
Oct 01, 2008 |
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Combating soil erosion is a primary concern for agricultural producers in the United States, and many have incorporated conservation tillage systems in their effort to maintain a profitable crop output.
Soil carbon storage is not always influenced by tillage practices
Feb 25, 2009 |
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The practice of no-till has increased considerably during the past 20 yr. Soils under no-till usually host a more abundant and diverse biota and are less prone to erosion, water loss, and structural breakdown than tilled ...
Ethanol production could jeopardize soil productivity
Jun 02, 2009 |
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There is growing interest in using crop residues as the feedstock of choice for the production of cellulosic-based ethanol because of the more favorable energy output relative to grain-based ethanol. This would also help ...
Biofuel from Corn Stover
Sep 22, 2009 |
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(PhysOrg.com) -- How much corn crop residue, or stover, can be removed for biofuels without harming soil? An Agricultural Research Service (ARS) study of a 10-mile circle around the University of Minnesota’s ...
Corn yield stability varies with rotations, fertility
Jul 21, 2009 |
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Understanding temporal variability in crop yields has implications for sustainable crop production, particularly since greater fluxes in crop yields are projected with global climate change.
U.S. Crop Yields Could Wilt in Heat
Aug 24, 2009 |
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(PhysOrg.com) -- Yields of three of the most important crops produced in the United States - corn, soybeans and cotton - are predicted to fall off a cliff if temperatures rise due to climate change.
Replacing corn with perennial grasses improves carbon footprint of biofuels
Biology /
Dec 02, 2008 |
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Converting forests or fields to biofuel crops can increase or decrease greenhouse gas emissions, depending on where – and which – biofuel crops are used, University of Illinois researchers report this month.
Researchers to determine if aeration reduces compaction, runoff on no-till fields
Apr 01, 2009 |
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Much of Texas' wheat may be grazed as a part of a dual-use crop. But many fields are still prepared using conventional tillage, which may not efficiently capture rainfall - a key to economic success in a semi-arid environment, ...
Study of alternate bearing presents recommendations for citrus growers
Nov 02, 2009 |
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Alternate bearing (also called biennial or uneven bearing) is the tendency of fruit trees to produce a heavy crop one year (called "on-crop") followed by a light crop or no crop the following "off-crop" year. ...
Squeezing More Crop Out of Each Drop of Water
Oct 09, 2009 |
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(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 ...
Soils offer new hope as carbon sink
Jun 01, 2007 |
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[B]Trials of agrichar using pyrolysis[/B] The huge potential of agricultural soils to reduce greenhouse gases and increase production at the same time has been reinforced by new research findings at NSW Department of Pri ...
