News tagged with soil nutrients
Plants prefer their kin, crowd out competition from strangers
Nov 16, 2009 |
4 / 5 (1) |
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(PhysOrg.com) -- Plants don't mind sharing space with their kin but when they're potted with strangers of the same species they start invigorating their leaves, a study by McMaster University reveals.
Environmental effects of cold-climate strawberry farming
Sep 05, 2009 |
5 / 5 (3) |
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Strawberries are America's fifth-favorite fruit, according to consumption rates. California and Florida grow more than 95% of the nation's strawberries; an additional 12,000 acres are planted in other states. Strawberries ...
Fertilization intensifies competition for light and endangers plant diversity
Apr 30, 2009 |
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When grasslands are fertilized their productivity is increased but their plant diversity is diminished. In the last 50 years levels of plant-available nitrogen and phosphorous have doubled worldwide. This additional supply ...
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Spreading antibiotics in the soil affects microbial ecosystems
Mar 30, 2009 |
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Antibiotics used extensively in intensive livestock production may be having an adverse effect on agricultural soil ecosystems. In a presentation to the Society for General Microbiology meeting at Harrogate International ...
Improving swine waste fertilizer
Jul 08, 2008 |
3.7 / 5 (3) |
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Swine production generates large amounts of waste. While this waste contains nutrients that may serve as fertilizer when applied to agricultural fields, the ratio of nutrients in the waste is different than what a crop requires.
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 ...
No-tillage plus
Jul 28, 2008 |
4.3 / 5 (4) |
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Tropical soils often behave differently than temperate soils when being farmed. In tropical regions, soils lose nutrients quickly when cultivated. With food shortages looming and soil quality declining rapidly, new farming ...
More Soil Delivered to Phoenix Lander Lab
Space & Earth / Space Exploration
Sep 17, 2008 |
3.2 / 5 (6) |
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Scientists working on the Phoenix Mars Mission are analyzing soil delivered to the spacecraft's Wet Chemistry Laboratory.
Sustainable Corn Production Supports Advanced Biofuel Feedstocks
Nov 25, 2009 |
3.3 / 5 (3) |
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(PhysOrg.com) -- Researchers worldwide are trying to economically convert cellulosic biomass such as corn stover into "cellulosic ethanol." But Agricultural Research Service (ARS) scientists have found that ...
Nitrogen applied
Oct 01, 2008 |
4.5 / 5 (2) |
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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.
Hot microbes cause groundwater cleanup rethink
Sep 11, 2009 |
4.8 / 5 (4) |
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(PhysOrg.com) -- CSIRO researchers have discovered that micro-organisms that help break down contaminants under the soil can actually get too hot for their own good.
Microbe diet key to carbon dioxide release
Jul 31, 2008 |
4 / 5 (5) |
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As microbes in the soil break down fallen plant matter, a diet "balanced" in nutrients appears to help control soil fertility and the normal release of the greenhouse gas carbon dioxide into the atmosphere.
No evidence to support 'organic is best'
Aug 07, 2008 |
3.7 / 5 (81) |
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New research in the latest issue of the Society of Chemical Industry's (SCI) Journal of the Science of Food and Agriculture shows there is no evidence to support the argument that organic food is better than food grown with t ...
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