Sentences with phrase «from nitrogen fertilizers»

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

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

«The amount and diversity of pesticides, pharmaceuticals and other industrial chemicals that humans are releasing into the environment are increasing at rates that match or exceed recent increases in CO2 emissions, nutrient pollution from nitrogen fertilizers, and other drivers of global change,» Bernhardt said.

Approximately 90 % of nitrous oxide is released into the atmosphere from nitrogen fertilizer production and nylon products manufacturing.

Not exact matches

At the time scientists didn't know if phosphates from soaps and fertilizers or nitrogen or carbon caused the lake killing blooms.

Saskferco further strengthens Yara's scale and position in North America and is a perfect complement, bringing efficient production capacity from a world - class nitrogen fertilizer facility that is in close proximity to one of the key global fertilizer markets.

Industry, which includes factories that make nitrogenous fertilizers, take nitrogen from the atmosphere and return it to the environment as nitrates.

Chickpeas create their own fertilizer by fixing nitrogen from the air â $ «which means significantly lower use of chemical fertilizers and healthier soils.

Organic producers can choose from several pelleted organic fertilizer materials that vary in nitrogen content and price.

They have a low carbon footprint, as they pull nitrogen from the air to produce their own fertilizers.

Too much chemical intrusion is polluting the local drinking water and marshlands, especially nitrogen, from industrial polluters, inadequate sewage infrastructure, and fertilizers and pesticides from farms and lawns.

Fritz Haber, for instance, could have died a hero for finding a way to make fertilizer from the nitrogen in air.

The invention of synthetic fertilizer, where nitrogen is taken from an inert chemical form in the air and turned into ammonia, has had a profound effect on nitrogen cycling.

BALTIMORE — A glut of nitrogen washing over the land from car and factory exhaust and crop fertilizers is degrading water and air quality and even altering precarious balances in species diversity.

Global warming, from the release of carbon dioxide and perturbations to the nitrogen cycle from fertilizers

According to Gillespie, 40 per cent of people alive today derive their nitrogen nutrition from synthetically - fixed fertilizer.

Fumes from nitrogen - rich fertilizers and animal waste combine in the air with combustion emissions to form solid particles in the air.

The culprit: fumes from nitrogen - rich fertilizers and animal waste combine in the air with combustion emissions to form solid particles, which constitute a major source of disease and death, according to the new study.

In contrast, after more than 30 years of trying to create corn that can convert atmospheric nitrogen into usable ammonia instead of relying on fertilizers, Ursin says she is still far from finding a way.

Excess nitrogen fertilizers from the field can flow into bodies of water.

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.

The amount of nitrous oxide in the atmosphere has quickly increased as well, with about a third of the total added by human activity — much of that emitted by nitrogen - based fertilizers, and half of that from just three nations: China, the Soviet Union, and the United States.

The increase in dead zones is attributed to excess inputs of nitrogen from fertilizers, sewage, and other human sources.

In environmental biotechnology, new concepts are currently being developed to employ microalgae to recover phosphor and nitrogen from sewage and reintroduce them into the nutrient cycle by means of organic fertilizers.

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.

In a recent study, engineering researchers at Waterloo found that small wetlands have a more significant role to play than larger ones in preventing excess nutrients like nitrogen and phosphorus from fertilizer from reaching waterbodies such as the Great Lakes.

Tiny materials appear to disrupt the plant's ability to pull nitrogen from the air and use it as fertilizer

The approaches range from curbing emissions from power plants to creating large wetlands to collect nitrogen from fertilizer that runs off fields.

The bloom, which is caused by nitrogen runoff from farm fertilizer, contains a cyanobacteria toxin that may be linked to neurological diseases.

But yields from a grass that only needs to be planted once would deliver an average of 13.1 megajoules of energy as ethanol for every megajoule of petroleum consumed — in the form of nitrogen fertilizers or diesel for tractors — growing them.

The bacteria harvest H2 from their PHB store and use their nitrogenase to combine it with nitrogen from the air to make ammonia, the starting material for fertilizer.

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).

But the need to build massive chemical plants to convert methane and nitrogen into ammonia, as well as the massive infrastructure needed to distribute it, prevents many poor countries from easy access to fertilizer.

Most strikingly, they discovered that living within 18 miles of a lake with high levels of dissolved nitrogen — a pollutant from fertilizer and sewage that feeds algae and cyanobacteria blooms — raised the odds of belonging to an ALS hot spot by 167 percent.

A key component of fertilizer is nitrogen, an element essential for building everything from DNA to proteins.

Resource - conserving cropping practices from WHEAT, such as more targeted use of nitrogen fertilizers or sowing wheat into untilled soils and crop residues, can raise wheat farmers» incomes while curbing greenhouse gas emissions, if widely adopted, he added.

Soil levels of nitrogen and phosphorous have also exploded, the study asserts, from use of fertilizers.

The large - scale application of nitrogenous fertilizers generated via nitrogen fixing is already detectable in sediments remote from civilization, the scientists noted.

In the chemical toxin category, perchlorate (a naturally occurring chemical, but also a man - made contaminant stemming from production of nitrate fertilizer with certain types of ore serving as the nitrogen source) and tobacco smoke (which contains hydrogen cyanide that can be converted into thiocyanate) are well - researched examples of chemical toxins that are considered goitrogenic because they can interfere with thyroid function.

The biomass types of interest are giant, perennial legumes — thus not needing nitrogen together with biologically based fertilizer that is derived from the co-product of MAF.

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.

And IPCC data suggest that N2O releases are far higher where nitrogen - fertilizer is applied to tropical soil compared to temperate soil — yet I am not aware of any full assessment of all emissions, including from soils, for any of the rapidly expanding tropical biofuel crops.

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.

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.

As I said, the biomass types of interest are giant, perennial legumes — thus not needing nitrogen together with biologically based fertilizer that is derived from the co-product of MAF.

Over and over, in examples from the first transcontinental telephone call to the transistor to methods for synthesizing ammonia (and thus nitrogen fertilizer), Dr. Chu pointed out how great technological advances benefiting society grew out of fundamental breakthroughs in basic science.

For example, with nitrogen, where the majority of human emissions come from synthetic fertilizers, the real - world challenge is to apply just the right amount of nitrogen to optimize crop yields while minimizing nitrogen losses that harm aquatic ecosystems.

Nitrous oxide emissions are primarily from nitrogen - based fertilizers used for soil management.

No examples of measurement of nitrous oxide emissions from deep banded nitrogen (N) fertilizer have been found to date for western Canada.

The effect of the pulse crop on the nitrous oxide emissions from a following cereal should also be measured, since it is known that nitrogen fertilizer requirements of wheat and barley are reduced if they follow a pulse crop in the rotation.