Sentences with phrase «high nitrogen fertilizer»

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

Not exact matches

Seedlings can be fertilized with fairly high levels of nitrogen to encourage strong vegetative growth, but after the plants have adjusted to the garden, fertilizers should not be applied unless the plants have low nitrogen symptoms, such as leaf yellowing and stunted growth.

In the summer, there is higher humidity beneath the nurse trees, and legumes such as mesquite fix nitrogen in the soil — a perfect fertilizer for the chiltepíns.

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.

Researchers in China studied the co-application of manures and chemical nitrogen fertilizers in high - input greenhouses.

And the leftover solids are great fertilizer — high in nutrients like nitrogen and phosphorous, safer than raw sewage, and stench - free.

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.

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

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.

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.

Our aquaculture system grows fish, provides high - nitrogen fertilizer, grows food year round, acts as a heat sink to balance greenhouse temperatures, and is where most of our rooting propagation occurs.

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.

Well, there's — fertilizer, vast amounts of nitrogen at an equally high rate of change.

«Our agricultural practices have always impacted water quality, but over the past century the mechanization of agriculture and the use of more potent fertilizers has caused a greater effect: the nitrogen leakage rate is higher....

The study suggests that ammonium - based fertilizer might be more useful under high - CO2 conditions, but says nothing about overall nitrogen uptake.

Due to air pollution, the city also has higher fallout of airborne nitrogen — a fertilizer — which could have helped the trees as well, said Searle, but temperature seemed to be the main factor.

In one study in South Dakota, placement of nitrogen fertilizer in the surface layer of soil led to higher emissions of nitrous oxde from zero till compared to convention till.

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.

One possible application could be in zero tillage systems, where coated nitrogen fertilizer might allow considerably higher rates of fertilizer to be applied close to the seed.

Some regions may even shift from being a carbon sink to being an atmospheric carbon dioxide source, 50,51,52 though large uncertainties exist, such as whether projected disturbances to forests will be chronic or episodic.31 Midwest forests are more resilient to forest carbon losses than most western forests because of relatively high moisture availability, greater nitrogen deposition (which tends to act as a fertilizer), and lower wildfire risk.50, 51,53

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

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.

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.

Fertilizer Pollution / Dead Zones: Factory farming deposits high amounts of nitrogen, phosphorous, and other fertilizers, which end up in drinking water, and is also linked to decreasing grassland biodiversity.

For an average lawn, he recommends applying a high - nitrogen lawn fertilizer at a rate of one to 1.5 pounds of nitrogen per 1,000 square feet.