Sentences with phrase «nitrogen fertilizer produced»
And Cornell University researcher David Pimentel found that organic farms use 63 percent of the energy used by same - size conventional farms, which rely on large amounts of nitrogen fertilizer produced synthetically with large amounts of energy.
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They have a low carbon footprint, as they pull nitrogen from the air to produce their own fertilizers.
The ban on synthetically - produced mineral nitrogen in organic agriculture confines the productivity to the natural system limits (i.e. N - fixation) or the limits defined by the annual nutrient balance of the farm, including imported fodder and organic fertilizers.
NOx gases are produced in oxygen - poor soils when microbes break apart nitrogen compounds in the fertilizer, a process called denitrification.
Accompanying the founders of the new Mars colony would be large amounts of equipment, including machines to produce fertilizer, methane and oxygen from Mars» atmospheric nitrogen and carbon dioxide and the planet's subsurface water ice.
A portion of the carbon dioxide is captured and used to produce urea (CH4N2O), the most widely used nitrogen fertilizer worldwide.
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.
Crops that produce more nitrogen will require less fertilizer, thus lowering production costs and reducing the potential for runoff that can impact the environment, according to Subramanian.
Following World War II, manufacturers also began producing vast quantities of agricultural fertilizers containing nitrogen and phosphorous — and about 95 percent of these nutrients run off into rivers and are flushed into coastal waters.
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).
Beyond producing hydrogen and carbon - rich fuels in a sustainable way, he has demonstrated that equipping the system with a different metabolically altered bacterium can produce nitrogen - based fertilizer right in the soil, an approach that would increase crops yields in areas where conventional fertilizers are not readily available.
In 2011, the U.S. Department of Agriculture reported that 12.8 billion tons of nitrogen fertilizer costing more than $ 800 million were added to fields that produce corn, cotton, grains and other commodity crops.
By producing more food on less land, it may be possible to reduce these emissions, but this so - called intensification often involves increasing fertilizer use, which can lead to large emissions of nitrogen - containing gases that also contribute to global warming.
Humanity currently depends on atmospheric nitrogen to produce enough fertilizer to maintain world food supply.
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.
It operates nitrogen fertilizer manufacturing facility which produces ammonia and urea ammonium nitrate (UAN) fertilizers.
The residue or «cake» that is left from this pressing is blended and fortified with natural sources of NPK (nitrogen, phosphorous and potassium) to produce an excellent organic fertilizer.
Perhaps instead of focusing on regulation and instead focusing on incenting positive behavior, we could get more digesters in place which would produce clean energy, reduce the amount of nitrogen and other nutrient pollution and provide farmers with another couple sources of revenue (electricity sales, fiber bedding sales (or savings) and increased fertilizer value of the liquid digestate as compared to raw manure.
The fermentation aspect of CFR's methanogenic anaerobic fermentation, MAF, could produce — literally — a significant fraction of the total current consumption of energy — renewably — along with sufficient, nitrogen and renewable carbon based — soil amendment - soil biologically augmented — organic fertilizer.
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.
The combination of high prices of natural gas, which is used to make nitrogen fertilizer, and of phosphate, as reserves are depleted, suggests a much greater future emphasis on nutrient recycling — an area where small farmers producing for local markets have a distinct advantage over massive feeding operations.
The community gardens will also be recipients of the nitrogen and phosphorus - rich fertilizer that is produced from the waste treatment process.
Second, the rapid and large - scale exploitation of fossil fuels [4]-- a vast stock of nonrenewable resources accumulated by Nature over hundreds of millions of years that are being drawn down in just a few centuries — and the invention of the Haber — Bosch process to use natural gas to produce nitrogen fertilizer [5,6] enabled increasingly higher levels of food and energy production.