Sentences with phrase «nitrogen fertilizer use in»

They believed that applications in western Canada were less likely, given the relatively good efficiency of nitrogen fertilizer use in this region (by such techniques as banding).

The finding that NOx emission rates will increase with warming temperatures also highlights the urgency of taking steps to better manage nitrogen fertilizer use in a warming world, he says.

Studies show that only about 30 percent of the nitrogen fertilizers used in agriculture are actually taken up by the crops they are intended to feed.

On the other hand, nitrous oxide comes from nitrogen fertilizers used in agriculture.

Nitrous oxide, meanwhile, is emitted from nitrogen fertilizers used in agriculture, among other sources.

Not exact matches

In 2010, one of its properties, Fern Road Farm, avoided using about 19,600 pounds of synthetic nitrogen fertilizers and 595 pounds of pesticides — while boosting revenue some 40 percent.

When serving «nitrate» vegetables, the levels of nitrates in Organics are reduced though not 100 percent eradicated (Nitrates are naturally occurring and farming without using nitrogen fertilizers does not eliminate nitrate concentration).

When serving «nitrate» vegetables, the levels of nitrates in Organics are significantly reduced though not 100 percent eradicated (Nitrates are naturally occurring and farming without using nitrogen fertilizers does not eliminate nitrate concentration).

Commercial baby food companies may buy veggies that are grown in a part of the country where the nitrate contamination of soil is lower, where the sun shines more or where Farmer's do not use high levels of nitrogen containing fertilizers.

You could argue [on] the climate change [one], but [on nutrient] pollution we have used so much [fertilizer] and so much nitrogen compounds are loose in the environment, it is hard to recognize our coastal oceans anymore; of the species that are gone [and] that kind of thing.

In a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gaIn a paper released for discussion in the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gain the journal Atmospheric Chemistry and Physics, Crutzen calculated that 3 to 5 percent of the nitrogen in the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gain the fertilizers used to raise crops for biofuels could end up in the atmosphere as nitrous oxide, a potent, long - lived greenhouse gain the atmosphere as nitrous oxide, a potent, long - lived greenhouse gas.

Global agricultural emissions of the gas have increased by 20 per cent in the last century as a result of widespread use of nitrogen - based synthetic fertilizers.

On a 40 - acre plot where he grows corn and soybeans in rotation, Ortner has worked with Michigan State University researchers for the past several years to reduce his nitrogen fertilizer use.

With the help of the Delta Institute and the Climate Trust, nonprofits focused on market - driven emissions reduction efforts, offsets are paid out to farmers when they document reductions in their nitrogen fertilizer use.

If their efficiency could be transferred to crops, we could grow more food in less time using less water and less nitrogen fertilizer.

There's also interest in using metal catalysts to convert carbon dioxide into fuels, make fertilizers from atmospheric nitrogen and drive reactions in fuel - cell cars.

Small amounts of the silvery grey metal are used to speed up or «catalyze» a number of key industrial processes, including those that make drugs, detergents and nitrogen fertilizer, and they even play a major role breaking down toxic pollutants in the catalytic converters of our cars.

Wang's research group designed a five - metal catalyst based on these high - entropy - alloy nanoparticles and demonstrated superior catalytic performance for selective oxidation of ammonia to nitrogen oxide, a reaction used by the chemical industry to produce nitric acid, an important chemical in the large - scale production of fertilizers and other products.

The nitrogen fertilizers traditionally used in agriculture have polluting effects both in water and in the atmosphere, this can degrade soils and contribute to global warming.

Moreover, if the new rice supplies less carbon and other nutrients to the soil, farmers might eventually want to use more nitrogen - based fertilizers, resulting in the release of nitrous oxide, another strong greenhouse gas.

It turns out that there's such a double - win in most bathrooms around the world; if we had «NoMix» toilets that separate urine from solid waste, municipal wastewater plants would have a significantly easier task (and produce more methane to generate electricity), and we could much more easily extract precious nutrients like phosphorus and nitrogen for use as fertilizer (instead of using fossil fuels).

«The fertilizer you use in your garden has nitrogen and phosphorus in it,» he said.

BRODIE: We typically use chemicals, especially nitrogen in the form of ammonia, as fertilizer.

In short order, use of nitrogen and phosphorus fertilizers by area farmers declined.

Fields tended in this way produce very high quality vegetables and grains in subsequent seasons, without the addition of nitrogen fertilizers and with minimal use of pesticides.

When the plants are half grown, nitrogen fertilizer can be used along the side of the row or in a circle around individual plants.

However, if one considers the enormous increase of reactive nitrogen in our biosphere, due to the use of synthesized fertilizer and the burning of fossil fuels, its impact is not part of the analysis, even tough this increase shows up in the eutrophication (nutrient enrichment) of open waters all over the world, resulting in excess algae, in some areas causing large algae blooms (as where they are going to hold the sailing regattas during the Olympics), red tides and dead zone, as the 8000 square mile dead zone in the Gulf of Mexico.

In China, where fertilizer manufacturing is government - subsidized, the average grain yield per acre grew 98 percent between 1977 and 2005, while nitrogen fertilizer use increased a dramatic 271 percent, according to government statistics.

Mr. Zhang and his co-workers also demonstrated that use of nitrogen fertilizer could be halved without loss of yield or grain quality, reducing nitrogen losses by more than 50 percent in the process.

One should also pay attention to other greenhouse gases, particularly methane (from rice paddies, ruminant animal digestive processes, industrial processes, and distributed natural sources, some of which could be triggered to large releases by warming) and nitrous oxide (from the nitrogen cycle linking the atmosphere, plants, and bacteria, now exacerbated by extremely heavy use of nitrogenous fertilizers in agriculture; note, as does Vaclav Smil from the University of Manitoba, that fertilizer use is required to feed half the world's current population.

In a 2004 study in western Kenya, a co-author, Pedro Sanchez, and colleagues found that farmers used only about 6 pounds of nitrogen fertilizer per acre (7 kilograms per hectare)-- little more than 1 percent of the total used by Chinese farmerIn a 2004 study in western Kenya, a co-author, Pedro Sanchez, and colleagues found that farmers used only about 6 pounds of nitrogen fertilizer per acre (7 kilograms per hectare)-- little more than 1 percent of the total used by Chinese farmerin western Kenya, a co-author, Pedro Sanchez, and colleagues found that farmers used only about 6 pounds of nitrogen fertilizer per acre (7 kilograms per hectare)-- little more than 1 percent of the total used by Chinese farmers.

Statistics show that from 2003 to 2005, annual corn yields in parts of the Midwestern United States and north China were almost the same, even though Chinese farmers used six times more nitrogen fertilizer than their American counterparts and generated nearly 23 times the amount of excess nitrogen.

Reducing fertilizer application in Africa might seem beneficial globally, yet the result in this region would be even poorer crop yields without any notable reduction in nitrogen pollution; Africa's fertilizer use is already suboptimal for crop yields.

The paper didn't fail to mention what we have reported on before, that corn farming for ethanol using management practices such as commercial fertilizer application, mechanical tillage, and intensive drainage is the most important driver of this increase in nitrogen pollution.

On Thursday, the Obama administration announced a «comprehensive approach» to enlist American farmers in a voluntary effort to cut greenhouse gases — carbon dioxide, methane, and nitrogen oxides — through programs and incentives designed to reduce fertilizer use, encouraging tree planting, and turn poop into power by capturing methane.

These changes in land use would be expected to reduce carbon dioxide emissions from soils, and increase carbon sequestering by means of an increase in soil organic matter.However, this reduction in amount of land in summerfallow, and an increase in land in crop, has been accompanied by an increase in use of nitrogen fertilizers.

An agronomist with the company reported to us that their main interest in such fertilizers was for applications in developing and / or tropical countries, where present use of nitrogen fertilizers is, in many cases, relatively inefficient (e.g., rice production).

Concerted efforts to reduce nitrogen and phosphorus pollution from industry, improve the efficiency of their use in agriculture, and enhance their availability for use in fertilizer in food - insecure regions would have multiple benefits, including a reduction of climate risks.

It has been suggested that the adoption of zero tillage in western Canada, with the potential to store more moisture and use moisture more efficiently, has been a contributing factor in the substantial drop in hectares of summerfallow, increases in land in crop, and increases in nitrogen fertilizer usage in western Canada in the last decade.

The opportunities for improvement are even greater in rapidly developing economies such as China, which now uses much more nitrogen and phosphorus fertilizer much less efficiently than either the United States or Europe, and at a much higher cost in pollution and human health.

The use of nitrogen fertilizers in farming is increasing the rate at which nitrous oxide is being added to the atmosphere.

They are the extinction rate; deforestation; the level of carbon dioxide in the atmosphere; and the flow of nitrogen and phosphorous (used on land as fertilizer) into the ocean.

The use of nitrogen fertilizers in agriculture is associated with high emissions of nitrous oxide.

The Delta Institute was presented with the Innovation award for the registration on ACR of the first U.S. fertilizer management project, a Michigan pilot currently in verification for reducing nitrogen fertilizer use on corn.

In the first world, easy access to relatively cheap fertilizer can lead to both excessive use and a bias toward nitrogen - intensive products, Townsend said.

Corn is among the most intensive uses of fertilizer, both per acre and in total use, and represents a significant opportunity for nitrogen use efficiencies that could reduce emissions as well as farmers» input costs while maintaining yields.

The Science paper cites estimates that 2 billion people would not be alive today except for the ability to artificially fix nitrogen from the air to use in fertilizer.

The use of nitrogen fertilizers is the second largest source of greenhouse gas emissions in Switzerland's agricultural sector.

95 The case for crop - based biofuels was further undermined when a team led by Paul Crutzen, a Nobel Prize — winning chemist at the Max Planck Institute for Chemistry in Germany, concluded that emissions of nitrous oxide, a potent greenhouse gas, from the synthetic nitrogen fertilizer used to grow crops such as corn and rapeseed for biofuel production can negate any net reductions of CO2 emissions from replacing fossil fuels with biofuels, thus making biofuels a threat to climate stability.

Ways to reduce fossil fuel inputs to food systems include the use of farm machinery powered by renewable electricity or farm - produced biofuels; the localization of food systems to reduce transport (perhaps entailing vertical urban agriculture); the adoption of organic and ecological production practices to reduce the need for nitrogen fertilizer, pesticides, and herbicides; and an overall reduction in the consumption of highly processed foods.