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Nitrogen Applied
October 02, 2008Combating soil erosion is a primary concern for agricultural producers in the United States, and many have incorporated conservation tillage systems in their effort to maintain a profitable crop output.
Cover crops are an important tool in this cycle, and while it is known that using nitrogen fertilizers can increase these crops biomass, the resulting levels of nitrogen for the following cash crops have been unknown.
Researchers found that areas that did have fertilizer applied to their cover crops had less biomass output for soil protection, while plots that did use fertilizer had greater biomass along with an increased amount of nitrogen available for the cash crop. Results from the study were published in the September-October 2008 issue of the Soil Science Society of America Journal.
"Use of high-residue cover crops is imperative to prevent soil erosion, to bank leftover nutrients during the winter for summer cash crops, and to improve soil quality," said Mark Reiter, lead author of the study. "From this data we see that we can increase cover crop biomass by using nitrogen fertilizer and that the nitrogen will later be available to our cash crop. It is a win-win situation."
The study was conducted by USDA-ARS scientists with the Conservation Systems Research Team in Auburn, AL and the J. Phil Campbell Senior Natural Resource Conservation Center in Watkinsville, GA, in cooperation with Auburn University. Scientists investigated the effects of using nitrogen fertilization on rye cover crops, as well as the subsequent fertilizer availability to cotton.
The focus of the study was on plots in the Tennessee Valley Region of northern Alabama, which is a highly productive region in the nation's Cotton Belt. To study the effects of fertilizer, rye cover crops were varied in the amount of nitrogen used.
After the rye had dried up, cotton was planted in the same soils and fertilized with different amounts of nitrogen. Researchers collected the plant and soil samples and determined how much nitrogen had been integrated into the plant and soil systems. A nitrogen isotope was used to trace the nitrogen used in the fertilizer, as opposed to nitrogen that is native to those soils.
While the results of the study are positive to understanding conservation tillage, further research is still needed before establishing new fertility management guidelines in all crops using high-residue cereal cover crops. In applying this research, it is expected that soil quality, along with management of the nutrients in the soil, will improve the success of American agricultural producers.
The Soil Science Society of America (SSSA)
"Use of high-residue cover crops is imperative to prevent soil erosion, to bank leftover nutrients during the winter for summer cash crops, and to improve soil quality," said Mark Reiter, lead author of the study. "From this data we see that we can increase cover crop biomass by using nitrogen fertilizer and that the nitrogen will later be available to our cash crop. It is a win-win situation."
The study was conducted by USDA-ARS scientists with the Conservation Systems Research Team in Auburn, AL and the J. Phil Campbell Senior Natural Resource Conservation Center in Watkinsville, GA, in cooperation with Auburn University. Scientists investigated the effects of using nitrogen fertilization on rye cover crops, as well as the subsequent fertilizer availability to cotton.
The focus of the study was on plots in the Tennessee Valley Region of northern Alabama, which is a highly productive region in the nation's Cotton Belt. To study the effects of fertilizer, rye cover crops were varied in the amount of nitrogen used.
After the rye had dried up, cotton was planted in the same soils and fertilized with different amounts of nitrogen. Researchers collected the plant and soil samples and determined how much nitrogen had been integrated into the plant and soil systems. A nitrogen isotope was used to trace the nitrogen used in the fertilizer, as opposed to nitrogen that is native to those soils.
While the results of the study are positive to understanding conservation tillage, further research is still needed before establishing new fertility management guidelines in all crops using high-residue cereal cover crops. In applying this research, it is expected that soil quality, along with management of the nutrients in the soil, will improve the success of American agricultural producers.
The Soil Science Society of America (SSSA)
Nitrogen Current Events and Nitrogen News RSSNitrogen loss threatens desert plant life, study shows
As the climate gets warmer, arid soils lose nitrogen as gas, reports a new Cornell study. That could lead to deserts with even less plant life than they sustain today, say the researchers.
Air pollution increases infants' risk of bronchiolitis
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USC study finds big air pollution impacts on local communities
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Iron controls patterns of nitrogen fixation in the Atlantic
Scientists including researchers from the National Oceanography Centre, Southampton and the University of Essex have discovered that interactions between iron supply, transported through the atmosphere from deserts, and large-scale oceanic circulation control the availability of a crucial nutrient, nitrogen, in the Atlantic.
Wolves, moose and biodiversity: An unexpected connection
Moose eat plants; wolves kill moose. What difference does this classic predator-prey interaction make to biodiversity?
North America automobile sector bottom of 'world sustainability league'
The study, entitled Sustainable Value in Automobile Manufacturing, looks at the sustainability performance of 17 leading car manufacturers worldwide between 1999 and 2007.
Interactions with aerosols boost warming potential of some gases
For decades, climate scientists have worked to identify and measure key substances -- notably greenhouse gases and aerosol particles -- that affect Earth's climate.
Designer molecule detects tiny amounts of cyanide, then glows
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Report examines hidden costs of energy production and use
A new report from the National Research Council examines and, when possible, estimates "hidden" costs of energy production and use -- such as the damage air pollution imposes on human health -- that are not reflected in market prices of coal, oil, other energy sources, or the electricity and gasoline produced from them.
Caltech researchers reveal unexpected sources of nitrogen fixation
Researchers at the California Institute of Technology (Caltech) have identified an unexpected metabolic ability within a symbiotic community of microorganisms that may help solve a lingering mystery about the world's nitrogen-cycling budget.
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The World's Greatest Fix: A History of Nitrogen and Agriculture by G. J. Leigh (Author) In the tradition of Jared Diamond's Guns, Germs, and Steel, this gives the very early history of how human ingenuity overcame the risk of famine through productive agriculture. Starting with a layman's guide to the chemistry of nitrogen fixation, the book goes on to show how humans emerged from nomadic lifestyles and began developing towns and settlements. When they for the first time began planting the same fields year after year, they noticed quickly the need to ensure soil fertility. But how? The method they came up with is still in use to this day. |
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Nitrogen (True Books) by Salvatore Tocci (Author) Ideal for today's young investigative reader, each A True Book includes lively sidebars, a glossary and index, plus a comprehensive "To Find Out More" section listing books, organizations, and Internet sites. A staple of library collections since the 1950s, the new A True Book series is the definitive nonfiction series for elementary school readers. |
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Twocal-Hn High Nitrogen Liquid, Vanilla by Ross Nutritional, #00729 - 8 Oz / Can, 24 Cans / Case by ROSS NUTRITIONAL. INDICATIONS: Twocal-Hn High Nitrogen Liquid, Vanilla a nutritionally complete, high nitrogen liquid formula. It is an ideal tube feeding to meet the increased protein and calorie needs of patients with severe fluid restrictions or for those with limited volume tolerance. With 119 Cal per 2 fl oz, its also an excellent oral supplement for medication pass programs. Lactose and gluten free. TWOCAL HN is a nutritionally complete, high-calorie liquid food designed to meet the increased protein and calorie needs of stressed patients and those requiring low-volume feedings. usage: For tube or oral feeding. For supplemental or sole-source nutrition. Often provided in 2-fl-oz amounts QID with Med Pass to assist with weight gain or maintenance. Twocal-Hn High Nitrogen Liquid Features: High in... |
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Espoma Organic Traditions Urea Nitrogen Fertilizer 45-0-0 - 5 lb Bag #UR5 by Espoma 5 LB, 45-0-0, Urea Fertilizer, Source Of Nitrogen Fertilizer, Promotes Green Color & Rapid Growth, Improves Yield & Enhances Quality Of Crops. |
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Pure Energy Fixed - 5 Year N2 Tank - 48ci 3000psi by Pure Energy Get ready to play year round with no troubles, it's time to put the C02 away and go with nitrogen. Features: Consistent Flow Technology piston Mil-spec Belleville springs Dual safety rupture plugs for both bottle and downstream safety Mechanical gauge Nickel plated brass bonnet Certified fill nipple and dual locking set screws Preset at 850 psi Approximately 500 shots per fill 5 year hydro test date Note: This tank DOES have a TC Stamp |
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Nitrogen Air Tank 10lb Aluminum by KegWorks This tank is perfect for Guinness! This is a mixed gas tank featuring a siphon tube that extends 3/4 down the tank. This siphon tube ensures that gas is maintains the correct mixture needed for a perfect pint of Guinness. This Nitrogen cylinder is produced from high strength aluminum alloy. Enjoy the benefits of aluminum tanks - lighter than steel tanks, and do not rust! A nitrogen gas regulator is required. In stock and ready to ship. Features: Made of high quality aluminum. For serving Guinness. . . . . Specs: Dimensions: 20"H x 7"D. Weight: 14.25 ib. 20-Cubic foot capacity. Dispense 3 - 4 half kegs. 1800 service rating. |
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RACE TECH RT SHCK NITROGEN NEEDLE TSNN01 by RACE TECH Photo`s are for reference only. Please read item title carefully. |
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Thermo Scientific Transfer Vessels for Liquid Nitrogen, 5L Capacity by Thermo Scientific Features of the Thermo Scientific Transfer Vessels for Liquid Nitrogen: For safe and efficient storage and handling of liquid nitrogen. Dia. x Height: 8.8 x 18.2 in. (22.4 x 46.2cm). Neck Diameter: 2.2 in. (5.6cm). Static Evap. Rate: 5 oz. Static Holding Time: 33.3 days. Weight Full: 17 lb. (7.7kg). Weight Empty: 8 lb. (3.6kg). The product referenced on this detail page is sold be Each. |
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Nitrogen Stainless Steel Men's Link Necklace Chain 26" by Titanium Kay |
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