Scientists Identify Link Between Plant Nitrogen Uptake and Greenhouse Gas ReductionsJuly 19, 2017
Corn management processes contributing to optimal levels of nitrogen uptake could lead to lower greenhouse gas emissions, according to a study conducted by Purdue University scientists. The results are published in the journal Frontiers in Plant Science.
"Previous internationally accepted estimates were that for every pound of nitrogen fertilizer applied in grain crop production, there is a loss of 1 percent as nitrous oxide to the atmosphere," said Purdue professor Tony Vyn. "We found that when it comes to North American corn production, nitrous oxide emissions are more of a function of two things, nitrogen balance and nitrogen recovery efficiency, than simply nitrogen rate alone. Moderate N rates cause less concern for nitrous oxide emissions, but when high rates of nitrogen fertilizer exceed optimal plant nitrogen requirements, then we will get higher nitrous oxide emissions."
He said that the findings of the study should be a guide in conducting agronomic research on identifying the impact of agricultural production on nitrous oxide emissions. "Our models indicate that a careful selection of appropriate nitrogen rate applied at the right time can both increase nitrogen recovery efficiency, lower the nitrogen balance left in the field, and reduce nitrous oxide emissions," Vyn said. "If you're going to measure greenhouse gas emissions, you must also measure the whole plant nitrogen uptake for each nitrogen fertilizer management program being tested."
Read more information about the study from Purdue University.
The Crop Biotech Update is a weekly newsletter of ISAAA, a non-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- Scientists Discuss Upcoming Biosafety Law in Egypt
- Ugandan Government Supports Passage of Biosafety Bill
- Scientists Identify Link Between Plant Nitrogen Uptake and Greenhouse Gas Reductions
- Induced Defences in Tomato Plants Cause Cannibalism among Pests
- USDA Urged to Start Over on Proposed Rule to Revamp Biotech Regulation
- International Team Uncovers How Wheat Lost Battle Against Blast
- CSIRO Releases Australia's Food and Agribusiness Roadmap
- Australian OGTR Approves Field Trial of GM Wheat and Barley
- Scientists Discover Plants Use Calcium to Send Internal Warning Signals of Aphid Attacks
- Pathogen-inducible Ta-Lr34res Expression Confers Disease Resistance in Barley
- Ectopic Expression of OsExtensin-like Gene in Rice Enhances Plant Lodging Resistance
Plant Breeding Innovations
- Development of Low-Cesium Rice Plants via CRISPR-Cas
Beyond Crop Biotech
- Harvard Scientists Use CRISPR-Cas to Store Movie Clips in DNA
- Beyond Promises: Facts About Biotech/GM Crops in 2016
- ASTA Launches Plant Breeding Animation Video
Subscribe to CBU: