HOME >> BIOLOGY >> NEWS
How much nitrogen is too much for corn?

MADISON, WI, APRIL 23, 2007 -- North Carolina State researchers recently discovered a test that quickly predicts nitrogen levels in the humid soil conditions of the southeastern United States. These scientists report that the Illinois Soil Nitrogen Test (ISNT) can assess the nitrogen levels in soil with more accuracy than current soil-based tests. This test will allow growers to cut back on the amount of nitrogen-based fertilizer added to soil, leading to economic and environmental benefits.

The proper management of nitrogen is critical to the success of many crop systems. Based on an assessment of the natural amount of nitrogen in soil, growers calculate their optimum nitrogen rates, the concentration of nitrogen that must be present in fertilizer in order to achieve expected crop yields. Under- and over-applying nitrogen fertilizer to corn crops often leads to adverse economic consequences for corn producers. Excess levels of nitrogen in nature also pose serious threats to environment. Agricultural application of nitrogen has been linked to rising nitrate levels and subsequent death of fish in the Gulf of Mexico and North Carolinas Neuse River.

"Although offsite nitrogen contamination of ground and surface waters could be reduced if nitrogen rates were adjusted based on actual field conditions, there is currently no effective soil nitrogen test for the humid southeastern U.S.," said Jared Williams, lead author of the North Carolina State study that was published in the March-April 2007 issue of the Soil Science Society of America Journal. This research was supported in part by USDA Initiative for Future Agricultural and Food Systems (IFAFS) grant.

From 2001 to 2004, scientists collected and tested the soil from 35 different sites in North Carolina. According to the North Carolina scientists, the collected soil samples were representative of millions of hectares in agricultural production in the southeastern USA. Corn was planted
'"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
American Society of Agronomy
23-Apr-2007


Page: 1 2

Related biology news :

1. On-farm research shows farmers that they can use less nitrogen
2. Pesticides choke pathway for nature to produce nitrogen for crops
3. Tropical plants go with the flow ... of nitrogen
4. Microbe fixes nitrogen at a blistering 92 degree Celsius
5. Natures process for nitrogen fixation caught in action
6. New research may reduce global need for nitrogen fertilizers
7. Tropical forests leak nitrogen back into atmosphere, say scientists
8. New method confirms importance of fungi in Arctic nitrogen cycle
9. Organic nitrogen gives new clue to biodiversity
10. International policy workshop on nitrogen in Paris March 8 10, 2006
11. Marine bacterium suspected to play role in global carbon and nitrogen cycles

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/18/2018)... ... 18, 2018 , ... Protein derived from cottonseed for human ... , Writer: Kay Ledbetter, 806-677- 5608, skledbetter@ag.tamu.edu, Dr. Keerti Rathore, 979-862-4795, rathore@tamu.edu , ... to which Dr. Keerti Rathore has devoted more than half his professional career, ...
(Date:10/17/2018)... ... October 17, 2018 , ... Slone ... healthcare companies, proudly announces Insights: Scientific Healthcare Investing 2018, a panel discussion ... with co-producer Biocom, the association representing the life science industry of California, ...
(Date:10/16/2018)... ... 2018 , ... At five years old, Sam began having issues with his ... veterinarian found that he had arthritis in his lower, or lumbosacral, spine. At ... on supplements for the arthritis and monitored his activity. , Within two years, Sam ...
Breaking Biology News(10 mins):
(Date:10/11/2018)... ... October 11, 2018 , ... Umbilical cord ... leukemia, lymphoma, sickle cell anemia, among others, and the medical industry has been ... new e-book provides expert advice on ways to maintain the integrity and the ...
(Date:10/5/2018)... , ... October 04, 2018 , ... ... with genomics, along with Duke University, announced today at IDWeek™ 2018 the positive ... that detects pathogen DNA in plasma, accurately identified causative pathogens in patients with ...
(Date:10/3/2018)... ... October 03, 2018 , ... Milwaukee Area Technical College ... Wednesday, Oct. 17, from 3-7 p.m. in Room T129 in the T Building, 101 ... new CNC Swiss Lab. A ribbon cutting and formal program will be held at ...
(Date:10/2/2018)... ... October 02, 2018 , ... Contamination ... the reliability and reproducibility of experimental data. Each lab must consider whether ethanol ... webinar, which is sponsored by Eppendorf , attendees will learn how to ...
Breaking Biology Technology:
Cached News: