Tag Archives: agriculture

New book by UW’s David R. Montgomery addresses how to rebuild Earth’s soils

In the introduction, University of Washington geologist David R. Montgomery writes that he never thought he’d write an optimistic book about the environment. Montgomery’s first popular book, “Dirt,” was about how erosion undermined ancient civilizations around the world in places like modern-day Syria and Iraq. (more…)

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IBM Research to Accelerate Big Data Discovery

New lab unifies data, expertise and novel analytics to speed discovery in industries including retail, medicine and finance

San Jose, Calif. – 10 Oct 2013: Scientists from IBM today announced the Accelerated Discovery Lab, a new collaborative environment specifically targeted at helping clients find unknown relationships from disparate data sets.

The workspace includes access to diverse data sources, unique research capabilities for analytics such as domain models, text analytics and natural language processing capabilities derived from Watson, a powerful hardware and software infrastructure, and broad domain expertise including biology, medicine, finance, weather modeling, mathematics, computer science and information technology. This combination reduces time to insight resulting in business impact – cost savings, revenue generation and scientific impact – ahead of the traditional pace of discovery.   (more…)

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Pesticide Accumulation in Sierra Nevada Frogs

SACRAMENTO, Calif. — A study on frogs in remote Sierra Nevada mountain habitats including Yosemite National Park and Giant Sequoia National Monument, detected concentrations of pesticides in frog tissue that potentially came from California’s Central Valley sources. 

“Our results show that current-use pesticides, particularly fungicides, are accumulating in the bodies of Pacific chorus frogs in the Sierra Nevada,” says Kelly Smalling, a research hydrologist with the U.S. Geological Survey and lead author of the study. “This is the first time we’ve detected many of these compounds, including fungicides, in the Sierra Nevada. The data generated by this study support past research on the potential of pesticides to be transported by wind or rain from the Central Valley to the Sierras.” (more…)

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Blades and Clades: Why Some Grasses Got Better Photosynthesis

Two groups — clades — of grasses that once had a common ancestry diverged. The PACMAD clade was predisposed to evolve a more efficient “C4” means of photosynthesis than grasses in the BEP clade. In a new study in the Proceedings of the National Academy of Sciences, a Brown-led team pinpoints the anatomical differences between the clades that led to the PACMAD’s tendency toward C4.

PROVIDENCE, R.I. [Brown University] — Even on the evolutionary time scale of tens of millions of years there is such a thing as being in the right shape at the right time. An anatomical difference in the ability to seize the moment, according to a study led by Brown University biologists, explains why more species in one broad group, or clade, of grasses evolved a more efficient means of photosynthesis than species in another clade. (more…)

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Environmental Cost of Agriculture: Soil Determines Fate of Phosphorous

Brazil’s soybean yields have become competitive with those of the United States and Argentina, but the soil demands a lot of phosphorous, which is not renewable. In the United States, meanwhile, historical applications of the fertilizer have polluted waterways. What accounts for these problems? It’s the soils, according to a new study comparing agriculture in the three countries.

PROVIDENCE, R.I. [Brown University] — Just 20 years ago, the soils of the Amazon basin were thought unsuitable for large-scale agriculture, but then industrial agriculture — and the ability to fertilize on a massive scale — came to the Amazon. What were once the poorest soils in the world now produce crops at a rate that rivals that of global breadbaskets. Soils no longer seem to be the driver — or the limiter — of agricultural productivity. But a new Brown University-led study of three soybean growing regions, including Brazil, finds that soils have taken on a new role: mediating the environmental consequences of modern farming. (more…)

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After the Storm, Haiti’s Food Situation Looks Bleak

ANN ARBOR — The aftermath of Hurricane Sandy, which ripped through southern Haiti in October, will extend beyond destruction and injury. The current and future food security looks bleak barring significant intervention during the next year, according to a University of Michigan report.

Rain-triggered mudslides throughout the country from the hurricane has not only washed out homes, but also roadways and bridges—bringing transportation to a near standstill, says Athena Kolbe, the report’s lead author and a U-M doctoral candidate in social work and political science. The natural disaster compounded Haiti’s long struggles to transport enough produce from the countryside to village markets and major urban centers. (more…)

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Study Suggests Antibiotics Might be Another Suspect in Honey Bee Die-off

The gut bacteria of honey bees have acquired several genes that confer resistance to tetracycline, a direct result of more than five decades of use of antibiotics by American beekeepers and a potential health hazard for bee colonies, a new study by Yale University researchers show.

The genetic analysis of the gut bacteria, which are believed to help in bees’ digestion and ability to ward off parasites, suggests changing antibiotic use by beekeepers might be one factor in the mysterious colony collapse disorder afflicting bee populations. (more…)

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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, published in the journal Proceedings of the National Academy of Sciences, shows for the first time that indigenous people, living in the savannas around the Amazonian forest, farmed without using fire.

Led by the University of Exeter, the research could provide insights into the sustainable use and conservation of these globally-important ecosystems, which are being rapidly destroyed. Pressure on the Amazonian savannas today is intense, with the land being rapidly transformed for industrial agriculture and cattle ranching.

By analysing records of pollen, charcoal and other plant remains like phytoliths spanning more than 2,000 years, the team has created the first detailed picture of land use in the Amazonian savannas in French Guiana. This gives a unique perspective on the land before and after the first Europeans arrived in 1492. (more…)

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