Farmers can use a variety of practices to keep their soils healthy. Some of these practices include not tilling the land, planting cover crops between growing seasons and rotating the type of crop grown on each field.
Environment
Oct 19, 2020
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15
(Phys.org) —Having more than two sets of chromosomes can increase a plant's ability to take up nutrients and survive in saline soils, a joint study by Purdue University and the University of Aberdeen shows.
Biotechnology
Jul 30, 2013
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Increased levels of greenhouse gases, particularly carbon dioxide (CO2), have been associated with the burning of fossil fuels, deforestation, cultivation of grasslands, drainage of the land, and land use changes. Concerns ...
Environment
Feb 1, 2013
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Spooky spectral swirls of last season's sea ice drift in currents off the coast of eastern Greenland in this image from NASA's Aqua satellite, acquired on October 17. Although sea ice in the Arctic will start forming again ...
Earth Sciences
Oct 29, 2012
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While pearl millet is a major food staple in some of the fastest growing regions on Earth, relatively little is known about the drought-hardy grain.
Biotechnology
Mar 29, 2013
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Beavers reshape landscapes with their dams. Wolves control elk populations. Sea otters protect kelp forests by eating sea urchins. These are what ecologists call "keystone" species: critters that control an ecosystem and ...
Ecology
Sep 12, 2013
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1
(PhysOrg.com) -- Assumptions over the rate at which soil bacteria will break down carbon in the face of global warming must be re-addressed, according to some of the world’s leading experts.
Environment
Oct 5, 2011
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A Washington State University astrobiologist is leading a group of 20 scientists in calling for a mission to Mars with "a strong and comprehensive life detection component." At the heart of their proposal is a small fleet ...
Space Exploration
Apr 23, 2012
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Melting Arctic glaciers are in rapid recession, and microscopic organisms colonize the newly exposed landscapes. Dr. James Bradley, Honorary Reader in Arctic Biogeochemistry in the School of Biological and Behavioral Sciences ...
Earth Sciences
Jul 1, 2024
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390
After years of hard work and seven minutes of terror, workers of NASA's Jet Propulsion Laboratory here let out their tears of joy.
Space Exploration
Aug 6, 2012
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