Sentences with phrase «of synthetic nitrogen fertilizer»

Most agriculture relies upon energy subsidies for transporting crops to market, running farm equipment, and the production of synthetic nitrogen fertilizer, herbicides and pesticides.

Large amounts of synthetic nitrogen fertilizer are applied around the world to ensure high plant productivity.

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.

Conventional stockless arable farms depend on the input of synthetic nitrogen fertilizers, while stockpiled manure and slurry on livestock farms create additional emissions and other environmen - tal problems.

Oil is either there or it isn't — while corn production is built on a tripod of water and weather; resistance to plant disease, blight, and pests; and the availability of synthetic nitrogen fertilizers.

Not exact matches

Harmful algal blooms are increasingly appearing due to the exposure of particular algae to the nitrogen in synthetic fertilizers, which enters waterways via farm runoff.

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.

He cites three common ways for producers to introduce nitrogen into soil: synthetic fertilizer; manure or other organic amendments; and through cultivation of nitrogen fixing pulse crops.

Synthetic fertilizer is available as a variety of commercial products, with different nitrogen - release times, whereas manure and pulse crops need to be broken down by microbial decomposition before nitrogen becomes available.

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.

In fact, had scientists not created synthetic, mostly natural - gas - based fertilizer decades ago to improve nature's method of «fixing» nitrogen — a process of breaking nitrogen molecules apart to make them available to plants — neither you nor I, nor most of the 7 billion people crowding the planet, would be here today.

There is also pollution — the soup of toxic chemicals we live in, the fact that we have distorted the nitrogen cycle with our wasteful overuse of synthetic fertilizers.

Thirty years after synthetic nitrogen (N) fertilizer had been applied to crops in 1982, about 15 per cent of the fertilizer N still remained in soil organic matter, the scientists found.

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.

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.

The United States Department of Agriculture (USDA) prohibits synthetic nitrogen fertilizer in organic production and encourages natural compost.

The government regulations on the total maximum daily load (tmdl) of synthetic nitrogen, or phosphorous fertilizer coming off of farms were established under the Clean Water Act.

Unfortunately, the EPA estimate of 18 % still doesn't include a large portion of the fuel, the synthetic nitrogen fertilizer, some of the nitrous oxide, all of the CFCs and bromines, and most of the transport emissions.

However, the number is probably closer to 25 - 30 % as they failed to include the «manufacture and use of pesticides and fertilizers, fuel and oil for tractors, equipment, trucking and shipping, electricity for lighting, cooling, and heating, and emissions of carbon dioxide, methane, nitrous oxide and other green house gases» and «still doesn't include a large portion of the fuel, the synthetic nitrogen fertilizer, some of the nitrous oxide, all of the CFCs and bromines, and most of the transport» and methane emissions.