Sentences with phrase «nitrogen fertilizer»

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

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

Pea crops require very little nitrogen fertilizer as a result, which reduces energy cost and greenhouse emissions.

It is very simply the observation that natural ecosystems evolved to be highly productive without nitrogen fertilizer inputs nor any human inputs at all really.

The disease is severe in susceptible rice varieties that are treated with high nitrogen fertilizer.

In developing countries, where nitrogen fertilizer is scarce, insufficient plant nitrogen results in low crop yields and limited food supplies.

Few projects in plant biotechnology are harder, or promise a greater payoff, than enabling crops to make their own nitrogen fertilizer.

Over the last century, the amount of chemical pollutants, in particular nitrogen fertilizer, in the river increased dramatically.

The proceeds from the sale of certified emission reductions are deployed to lower the purchase price of climate - friendly nitrogen fertilizer for farmers.

Control: Maintain a uniform supply of soil moisture through irrigation and avoid large amounts of nitrogen fertilizer.

Because of this, peas often do not require synthetic nitrogen fertilizer and other possible additives, decreasing the amount of harmful resources needed while keeping vital nutrients needed to grow the plant.

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

Faster problems may include: energy crunch (Peak Oil, etc), pressure on nitrogen fertilizer production, phosphorus (that is potentially very scary), and especially, water.

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

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

Farmers may have to apply nitrogen fertilizer as well.

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).

There may also be opportunities for GHG offset projects, particularly in tropical and semi-tropical countries, where there is expected to be a large increase in demand for nitrogen fertilizers in the future.

Ca. 1 % of global fossil energy consumption is used for chemical nitrogen fertilizer production.

Studies should compare crops grown in a zero tillage system with a conventional tillage system, with nitrogen fertilizer banded on the cereals.

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

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.

He has recommended that California lawmakers consider imposing economic penalties and incentives for farmers, such as excise fees on nitrogen fertilizer applications, with higher rates applied to areas declared to be at risk for nitrate contamination.

Other studies have shown that coating nitrogen fertilizers with various materials, such as polyolefins, can slow the release of nitrogen nutrients so that they are more synchronous with the requirements of the growing crop.

The net effect needs to be measuredin future studies, which include nitrous oxide emission measurements.Furthermore, some studies have indicated that adoption of zero tillage may lead to an increase in nitrogen fertilizer requirements.

Man - made nitrogen fertilizer causes crops to grow faster, but it is having little effect on forests.

Trends in N2O emissions are region - dependent, with the largest increasing trend in temperate Asia owing to more nitrogen fertilizer usage there.

«For every pound of nitrogen fertilizer manufactured, at least 10 pounds of carbon dioxide may be released,» Hungria states.

To further complicate matters, grain protein can decrease under high CO2, demanding increased nitrogen fertilizer to maintain quality (Kimball et al. 2001).

Rice also accounts for approximately 13 % of global nitrogen fertilizer use.

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.

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.

«What we found is that it's not a linear relationship between the nitrous oxide and the [nitrogen fertilizer] rate applied, but a nonlinear, exponential trend across many different crop types,» including corn, major grain types, rice and grasses, said study co-author Neville Millar, senior research associate with Michigan State's W.K. Kellogg Biological Station.

And excess nitrogen fertilizer applied to the fields of feed corn grown to satisfy the world's livestock runs off into streams and rivers, sometimes flowing to coastal waters where it creates large algal blooms and low - oxygen «dead zones» where fish can not survive.

A portion of the carbon dioxide is captured and used to produce urea (CH4N2O), the most widely used nitrogen fertilizer worldwide.

Using natural biodegradable biopolymers like organic fertilizers could be a sustainable alternative facing the common usage of inorganic nitrogen fertilizers that result harmful to the environment.

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.

«We also wanted to look at how we could optimize the use of nitrogen, since nitrogen fertilizers can be a solution, but also a problem.»

Priority # 2 is balance out the added cost for plants with reduced expenditures on other inputs - for example, to eliminate synthetic nitrogen fertilizer entirely and replace with pee.

We did not find to date any published studies which compared the effects of type of tillage system and nitrogen fertilizer placement method on nitric oxide emissions.

Paul Driessen explains the damage done to the Gulf of Mexico from nitrogen fertilizer runoff that flows down the Mississippi and creates massive dead zones (no oxygen) that kill marine life.

Some sources insist that compost is actually a soil dressing, not a fertilizer, and that a pint of high - nitrogen fertilizer such as a 12-12-12 (N - P - K) or 10 -6-4 should be included each time a layer is added to the pile.

Scientists have recently used the Canadian Light Source (CLS) to evaluate the effects of various sources of supplemental nitrogen fertilizer on the chemical composition of soil organic matter.

«The big question I had when we started this research was how different nitrogen fertilizer supplements affected the overall soil organic matter composition,» says Dr. Adam Gillespie, a post-doctoral fellow working with Agriculture and Agri - Food Canada (AAFC).