News tagged with soil nutrients
Agricultural bacteria: Blowing in the wind
The 1930s Dust Bowl proved what a disastrous effect wind can have on dry, unprotected topsoil. Now a new study has uncovered a less obvious, but equally troubling impact of wind: Not only can it carry away soil particles, ...
May 09, 2012 |
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Analysis raises atmospheric, ecologic and economic doubts about forest bioenergy
A large, global move to produce more energy from forest biomass may be possible and already is beginning in some places, but scientists say in a new analysis that such large-scale bioenergy production from ...
Apr 18, 2012 |
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Study: 800-year-old farmers could teach us how to protect the Amazon
In the face of mass deforestation of the Amazon, we could learn from its earliest inhabitants who managed their farmland sustainably. Research from an international team of archaeologists and paleoecologists, ...
Apr 09, 2012 |
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Cooking better biochar: Study improves recipe for soil additive
Backyard gardeners who make their own charcoal soil additives, or biochar, should take care to heat their charcoal to at least 450 degrees Celsius to ensure that water and nutrients get to their plants, according ...
Mar 22, 2012 |
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Knowledge of fungi helps to map risks of genetically modified crops
Plant fungi are indispensable for a good plant growth. Dutch researcher Erik Verbruggen from the VU University Amsterdam has discovered that phosphate and grass-clover have an effect on the diversity and variation in the ...
Feb 14, 2012 |
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Tree rings may underestimate climate response to volcanic eruptions: study
Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even absent growing seasons, ...
Space & Earth / Earth Sciences
Feb 05, 2012 |
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Bacterial plasmids -- the freeloading and the heavy-lifters -- balance the high price of disease
Studying self-replicating genetic units, called plasmids, found in one of the world's widest-ranging pathogenic soil bacteria -- the crown-gall-disease-causing microorganism Agrobacterium tumefaciens -- Ind ...
Feb 01, 2012 |
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Restored wetlands rarely equal condition of original wetlands
Wetland restoration is a billion-dollar-a-year industry in the United States that aims to create ecosystems similar to those that disappeared over the past century. But a new analysis of restoration projects ...
Jan 24, 2012 |
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Fungi-filled forests are critical for endangered orchids
When it comes to conserving the world's orchids, not all forests are equal. In a paper to be published Jan. 25 in the journal Molecular Ecology, Smithsonian ecologists revealed that an orchid's fate hinges ...
Jan 24, 2012 |
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Acid rain poses a previously unrecognized threat to Great Lakes sugar maples
(PhysOrg.com) -- The number of sugar maples in Upper Great Lakes forests is likely to decline in coming decades, according to University of Michigan ecologists and their colleagues, due to a previously unrecognized ...
Jan 16, 2012 |
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Diverse ecosystems are crucial climate change buffer
Preserving diverse plant life will be crucial to buffer the negative effects of climate change and desertification in in the world's drylands, according to a new landmark study.
Jan 12, 2012 |
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New study finds 400,000 farmers in southern Africa using 'fertilizer trees' to improve food security
On a continent battered by weather extremes, famine and record food prices, new research released today from the World Agroforestry Centre documents an exciting new trend in which hundreds of thousands of poor farmers in ...
Oct 14, 2011 |
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Method of studying roots rarely used in wetlands improves ecosystem research
A method of monitoring roots rarely used in wetlands will help Oak Ridge National Laboratory researchers effectively study the response of a high-carbon ecosystem to elevated temperatures and levels of carbon ...
Oct 13, 2011 |
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Corn yields with perennial cover crop are equal to traditional farming
Soil quality, water quality, and possibly even farm profits will all benefit by using a perennial cover crop on corn fields that allows for similar yields to traditional farming methods, according to Iowa ...
Jul 25, 2011 |
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Dairy manure goes urban
When natural ecosystems are replaced by roads, homes, and commercial structures, soil is negatively impacted. Studies have shown that, among other issues, distressed urban soils are often significantly compacted, ...
Jun 23, 2011 |
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