So it subsidizes fertilizer and encourages farmers to overuse it to maximize crop yields.
Weather causes, possibly fueled by overall climate change, have led to lower crop yields.
"Crop yields in some areas dropped as much as 50%, " according to the agency.
Yet the use of artificial fertilisers increases crop yields and so what is the net effect?
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If adopted on a grand scale, the assessment argues, such techniques could double crop yields.
Acute water shortages cause death through waterborne diseases, and dwindling water supplies reduce crop yields.
For eight of them, crop yields the year after the drought did not fully rebound.
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The inefficiency of farms meant low crop yields, high prices, limited choice, and uneven quality.
That means lower crop yields, more natural disasters, and higher degrees of risk across all sectors.
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Farmland yields (not crop yields, financial yields from renting out the land) are at an extreme low.
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The net result was impressive: excess nitrogen was reduced by about 25%, while crop yields actually increased.
Government has invested in basic research that led to new crop yields for farmers and the Internet.
The models suggested that precipitation would increase in the northern and middle latitudes, and crop yields would grow.
Covering the largest area to be impacted since 1956, these conditions are taking a heavy toll on crop yields.
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Crop yields have increased at a constant rate despite changes in global temperature.
The increasing trend in world crop yields from 1960 to 1980 is exactly the same as from 1980 to 2010.
As I have documented in prior columns, global warming is creating ideal weather that is producing record crop yields.
We used to use soy meal to add protein but the crop yields of corn are about 3X that of soy.
Ever since people noticed how robust the increase of crop yields is, others have been saying that it must soon stop.
Or nitrogen emissions (more exactly, NOx) from the use of artificial fertilisers contribute to climate change which will reduce crop yields.
FORBES: The Climate Vulnerable Forum Report: Really Not Very Good At All
Record high temperatures are occurring with far greater frequency than in decades past, and crop yields decline sharply in extreme heat.
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Studies have shown that precision farming techniques can lower application of pesticides and fertilizers by 10% or more without affecting crop yields.
Innovative technologies will be needed to improve crop yields and drought tolerance and deliver more efficient ways of using fertilizer and water.
This irrigation-efficient system, Khodpe was told, could double crop yields and save up to 60% of the water that flood irrigation methods consume.
The company expects crop yields to be lower in 2012 owing to the severe drought in the U.S., resulting in high grain prices.
By combining satellite images, analytical software and boots-on-the-ground reports, Lanworth is beginning to displace the usda as the authority in predicting planted acreage and crop yields.
The cost of organic conversion and lower crop yields than regular cotton (at least in the early years after a switch) have quelled farmers' interest.
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They also created 'designer composts' to increase organic potato crop yields.
BBC: No chemicals are used on the potatoes. Picture: North News
Determining that these rats, which live closely with people, were a threat to health and crop yields, Alberta declared war, and after a decadelong fight, won.
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Crop yields in recent dry years were less affected by drought than crops of the dust-bowl droughts of the 1930s, when there was less carbon dioxide.
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