News tagged with agricultural field
Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...
May 23, 2012 |
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Nasa sees fields of green spring up in Saudi Arabia
(PhysOrg.com) -- Saudi Arabia is drilling for a resource possibly more precious than oil.
Space & Earth / Earth Sciences
Mar 30, 2012 |
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Wood chips help curb nitrate leaching
(PhysOrg.com) -- Wood chips can significantly stem nitrate flow from crop fields into the surrounding watershed, according to a U.S. Department of Agriculture (USDA) study.
Feb 20, 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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Solutions for a nitrogen-soaked world
Nitrogen is both an essential nutrient and a pollutant, a byproduct of fossil fuel combustion and a fertilizer that feeds billions, a benefit and a hazard, depending on form, location, and quantity. Agriculture, industry ...
Jan 17, 2012 |
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Honeybee deaths linked to seed insecticide exposure
Honeybee populations have been in serious decline for years, and Purdue University scientists may have identified one of the factors that cause bee deaths around agricultural fields.
Jan 12, 2012 |
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Using ground covers in organic production
Studies by U.S. Department of Agriculture (USDA) scientists indicate that organic farmers who need to periodically amend their soils with compost after planting can still control weeds -- and hold down costs -- by using fabric ...
Aug 30, 2011 |
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Soil microbes accelerate global warming
More carbon dioxide in the atmosphere causes soil to release the potent greenhouse gases methane and nitrous oxide, new research published in this week's edition of Nature reveals. "This feedback to our changing atmosphere means ...
Jul 13, 2011 |
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Researchers track the secret lives of feral and free-roaming house cats
Researchers (and some cat-owners) wanted to know: What do feral and free-roaming house cats do when they're out of sight? A two-year study offers a first look at the daily lives of these feline paupers and ...
May 26, 2011 |
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Manure runoff depends on soil texture
Research has documented the rise of nutrient runoff from flat agricultural fields with high rates of precipitation that adds nitrates and phosphates to waterways.
Mar 29, 2011 |
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Recording the soundscapes of spring
This April, when you step outside and hear the first sounds of spring, you won't be hearing just songbirds and buzzing insects, but aural evidence of an awakening ecosystem.
Mar 11, 2011 |
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Sustainable Phosphorus Summit calls for a 'new alchemy' around phosphorus and food
The problem with phosphorus, a critical element in fertilizers and food, is, as comedian Rodney Dangerfield would say, that it "can't get no respect."
Feb 11, 2011 |
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Statistical analysis can estimate crop performance
Scientists at Rothamsted Research, United Kingdom, in collaboration with the International Center for Agriculture Research in the Dry Areas (ICARDA), Syria have developed a method of accounting for spatial trend in single ...
Jan 07, 2011 |
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A review of vegetated buffer efficacy
Agricultural nonpoint source pollution has been listed as one of the leading sources of pollution in rivers and water bodies throughout the world. Environmental regulators and scientists are making concerted efforts to reduce ...
Feb 16, 2010 |
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Surveying bird biodiversity from space?
(PhysOrg.com) -- A fundamental rule of wildlife ecology says that diverse habitats foster greater biodiversity: The Amazon has far more species than Greenland. But how do habitat and biodiversity relate in a state like Wisconsin, ...
Dec 16, 2009 |
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