crop yield decline News
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Cereal Crops Feeling the Heat
LIVERMORE, California (ENS) - Warming temperatures since 1981 have caused annual losses of about US$5 billion for six major cereal crops, new research has found. This is the first study to estimate how much global food production already has been affected by climate change. From 1981 to 2002, fields of wheat, corn and barley throughout the world have produced a combined 40 million metric tons ...
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Satellite mapping reveals agricultural slowdown in Latin America: UBC study
For the first time, satellite mapping of Latin America shows that the continent’s agricultural expansion has waned in the wake of the global economic downturn, according to UBC research. “Nearly every agricultural region across Latin America slowed down in expansion from 2007 to 2013, compared to the previous six years,” says Jordan Graesser, the study’s lead author. ...
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Crop water use efficiency
Crop water use efficiency (WUE), or yield per unit of water used, can be improved through irrigation management and methods, including deficit irrigation (irrigating less than is required for maximum yields) and supplemental irrigation (irrigating to supplement precipitation so as to avoid crop failure or severe yield decline). Thus, WUE is key for agricultural production with limited water ...
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Grass-based farming systems: Soil conservation and environmental quality
Crop selection and sequence can have a profound effect on the environment and on farm profitability. According to Chapter 7, “Grass-based Farming Systems: Soil Conservation and Environmental Quality” by Jeremy W. Singer, Alan J. Franzluebbers, and Douglas L. Karlen in the book, Grassland Quietness and Strength for a New American Agriculture, the basis for a productive agricultural system should ...
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Global Land Temperatures Warmest Ever in January, April
GENEVA, Switzerland, August 8, 2007 (ENS) - Global land surface temperatures for January and April will likely be ranked as the warmest since recordkeeping began in 1880, the United Nations World Meteorological Organization reported Tuesday. 'Weather and climate are marked by record extremes in many regions across the world since January 2007,' the WMO said.The global weather agency is working ...
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