Nitrate losses and nitrous oxide emissions under contrasting tillage and cover crop management

Autor:	Peter L. O'Brien, Bryan D. Emmett, Robert W. Malone, Márcio R. Nunes, John L. Kovar, Thomas C. Kaspar, Thomas B. Moorman, Dan B. Jaynes, Timothy B. Parkin
Rok vydání:	2021
Předmět:	Crops Agricultural Soil Environmental Engineering Nitrates Nitrogen Nitrous Oxide Agriculture Management Monitoring Policy and Law Fertilizers Pollution Waste Management and Disposal Water Science and Technology
Zdroj:	Journal of environmental qualityREFERENCES. 51(4)
ISSN:	1537-2537
Popis:	Agroecosystems in the upper Mississippi River Basin are highly productive but often contribute to deterioration of water quality and greenhouse gas emissions. Cover cropping and no-till are conservation strategies implemented to reduce the environmental impact of these agroecosystems. However, using multiple strategies can lead to systemwide interactions that are not fully understood. These interactions can affect not only environmental quality metrics, such as subsurface drainage nitrate losses or nitrous oxide (NBoth subsurface nitrate losses and nitrous oxide emissions were linked with weather. Subsurface nitrate losses were linked with cumulative annual drainage. Nitrous oxide emissions were linked with fertilizer N applications. Rye cover crop with no-till reduced nitrate losses with no yield declines.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbb854278302bb909dc8f1fa6105e7dc https://pubmed.ncbi.nlm.nih.gov/35443288 Zobrazit plný text záznamu Plný text