Agriculture

Thinking Big by Burning Small
November 20, 2017 12:52 PM - University of the Witwatersrand

A recent paper by scientists from Wits University in South Africa shows how creative fire management can increase habitat for wildebeest and other grazing animals in national parks.

Thinking Big by Burning Small
November 20, 2017 12:52 PM - University of the Witwatersrand

A recent paper by scientists from Wits University in South Africa shows how creative fire management can increase habitat for wildebeest and other grazing animals in national parks.

The Hydroponic, Robotic Future of Farming in Greenhouses
November 20, 2017 12:31 PM - Wired

When you think of automation, you probably think of the assembly line, a dramatic dance of robot arms with nary a human laborer in sight. But that’s child’s play. The grandest, most disruptive automation revolution has played out in agriculture. First with horses and plows, and eventually with burly combines—technologies that have made farming exponentially cheaper and more productive. Just consider that in 1790, farmers made up 90 percent of the US workforce. In 2012, it was 1.5 percent, yet America still eats.

The Hydroponic, Robotic Future of Farming in Greenhouses
November 20, 2017 12:31 PM - Wired

When you think of automation, you probably think of the assembly line, a dramatic dance of robot arms with nary a human laborer in sight. But that’s child’s play. The grandest, most disruptive automation revolution has played out in agriculture. First with horses and plows, and eventually with burly combines—technologies that have made farming exponentially cheaper and more productive. Just consider that in 1790, farmers made up 90 percent of the US workforce. In 2012, it was 1.5 percent, yet America still eats.

Light Green Plants Save Nitrogen Without Sacrificing Photosynthetic Efficiency
November 20, 2017 12:14 PM - Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

The top leaves of crops absorb far more light than they can use, starving lower leaves of light. Scientists designed plants with light green leaves with hopes of allowing more light to penetrate the crop canopy and increase overall light use efficiency and yield. This strategy was tested in a recent modeling study that found leaves with reduced chlorophyll content do not actually improve canopy-level photosynthesis, but instead, conserve a significant amount of nitrogen that the plant might be able to reinvest to improve light use efficiency and increase yield.  

Light Green Plants Save Nitrogen Without Sacrificing Photosynthetic Efficiency
November 20, 2017 12:14 PM - Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

The top leaves of crops absorb far more light than they can use, starving lower leaves of light. Scientists designed plants with light green leaves with hopes of allowing more light to penetrate the crop canopy and increase overall light use efficiency and yield. This strategy was tested in a recent modeling study that found leaves with reduced chlorophyll content do not actually improve canopy-level photosynthesis, but instead, conserve a significant amount of nitrogen that the plant might be able to reinvest to improve light use efficiency and increase yield.  

Seagrass is a Key Fishing Ground Globally
November 17, 2017 11:58 AM - Stockholm University

New research demonstrates that seagrass meadows are important fishing grounds all around the globe. The work highlights that there is an urgent need to start appreciating and understanding this role to be able to build more sustainable fisheries. A study led by Dr Lina Mtwana Nordlund at Stockholm University, published in the scientific journal Fish & Fisheries, examines the global extent to which these underwater meadows support fishing activity.

Seagrass is a Key Fishing Ground Globally
November 17, 2017 11:58 AM - Stockholm University

New research demonstrates that seagrass meadows are important fishing grounds all around the globe. The work highlights that there is an urgent need to start appreciating and understanding this role to be able to build more sustainable fisheries. A study led by Dr Lina Mtwana Nordlund at Stockholm University, published in the scientific journal Fish & Fisheries, examines the global extent to which these underwater meadows support fishing activity.

Virginia Tech works to protect Africa's crops against invasive pests
November 17, 2017 08:11 AM - Virginia Tech

As invasive and indigenous insect pests continue to wreak havoc on crops across Africa, a Virginia Tech-led project is intensifying its work to coordinate a response that looks beyond geographic and financial barriers.

Stopping crop losses requires working across borders, said Muni Muniappan, director of the Virginia Tech-led Feed the Future Innovation Lab for Integrated Pest Management. “Fighting these pests in just a few of these countries is futile, because it will continue to thrive in the countries where we are not working,” he said.

Groundwater Depletion Could be Significant Source of Atmospheric Carbon Dioxide
November 16, 2017 01:03 PM - American Geophysical Union

Humans may be adding large amounts of carbon dioxide to the atmosphere by using groundwater faster than it is replenished, according to new research. This process, known as groundwater depletion, releases a significant amount of carbon dioxide into the atmosphere that has until now been overlooked by scientists in calculating carbon sources, according to the new study.

First | Previous | 4 | 5 | 6 | 7 | 8 | Next | Last