Fertilizer timing affects nitrous oxide, carbon dioxide, and ammonia emissions from soil

Thies, Samuel; Joshi, Deepak R.; Bruggeman, Stephanie A.; Clay, Sharon A.; Mishra, Umakant; Morile‐Miller, Janet; Clay, David E.

doi:10.1002/saj2.20010

Title: Fertilizer timing affects nitrous oxide, carbon dioxide, and ammonia emissions from soil

Journal Article · Fri Dec 13 00:00:00 EST 2019 · Soil Science Society of America Journal

DOI:https://doi.org/10.1002/saj2.20010· OSTI ID:1631971

Thies, Samuel ^[1];

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^[3];

^[2];

^[4]; Morile‐Miller, Janet ^[2];

^[2]

Becks Hybrids, Olivia, MN (United States)
South Dakota State Univ., Brookings, SD (United States)
Augustana College, Sioux Falls, SD (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

The impact of interactions between management and climate on nitrous oxide (N₂O), carbon dioxide (CO₂), and ammonia (NH₃) emissions are not well understood. This study quantified the effect of urea fertilizer application timing on inorganic N movement, immobilization, and the gaseous emissions of N₂O-N, CO₂ -C, and NH₃-N. Urea was applied once, at two rates (0 and 224 kg ha^-1) on six dates (early fall, 20 Sept. 2017; mid-fall, 11 Oct. 2017; early winter, 1 Nov. 2017; early spring, 1 May 2018; mid-spring, 22 May 2018; and early summer, 12 June 2018). Gaseous emissions, soil temperature, and soil moisture were measured every 4 h for 21 consecutive days following urea application. Changes in soil inorganic N contents were used to determine the amount of inorganic N remaining in the soil, nitrification, immobilization/fixation, and leaching. For all fertilizer application dates, the cumulative fertilizer derived N₂O-N emissions for the 21 days following application were <0.05% of the applied N. Fertilizer-derived N₂O-N emission rates were higher than N₂O-N emission rates in the unfertilized soil in early fall and early summer. Even though the highest net N₂O-N emissions occurred in early spring, the application of fertilizer did not increase emissions. The highest net N₂O-N + NH₃-N emissions occurred in cool soils (early spring) in soils with water filled pore space (>60%). These findings indicate that intergovernmental panel on climate change (IPCC) default value of 1% of applied N for N₂O emissions improved by considering the fertilizer application date.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: U.S. Department of Agriculture (USDA) - National Institute of Food and Agriculture (NIFA); USDOE

Grant/Contract Number:: AC02-06CH11357; AC02‐05CH1123

OSTI ID:: 1631971

Alternate ID(s):: OSTI ID: 1598722

Journal Information:: Soil Science Society of America Journal, Vol. 84, Issue 1; ISSN 0361-5995

Publisher:: Alliance of Crop, Soil, and Environmental Science SocietiesCopyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 15 works

Citation information provided by
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