Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE)

F. J. Adamsen, G. Wechsung, F. Wechsung, G. W. Wall, B. A. Kimball, P. J. Pinter, R. L. LaMorte, R. L. Garcia, D. J. Hunsaker, Steven Leavitt

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Increasing atmospheric CO2 concentrations are expected to increase plant production and demand for N and other nutrients. The objectives of this investigation were to characterize and quantify the temporal trends in soil mineral N and aboveground biomass N during the growing season of wheat (Triticum aestivum L.) with adequate N, ambient and elevated CO2, and two levels of water stress. The free-air CO2 enrichment (FACE) technique was used to enrich the air from 370 to 550 μmol mol-1 CO2. Spring wheat was planted in late December of 1992 and 1993 and harvested at the end of May. Each main plot (CO2 level) was split into two irrigation treatments to replace 100 and 50% of the potential evapotranspiration. Soil and plant samples were taken for N analysis six times each year. Elevated CO2 lowered soil mineral N concentrations in the top 0.3 m of soil as much as 40% and increased aboveground biomass N by as much as 16% compared with the ambient treatment. Before anthesis, irrigation level had little effect on either soil mineral N or aboveground biomass N, but at harvest in 1992-1993 and at dough stage in 1993-1994 deficit-irrigated plots had higher soil mineral N (p < 0.05) and lower aboveground biomass N than plots that received adequate irrigation. There was little variation in the concentrations of N in the aboveground biomass among treatments within a sampling date. The data suggest elevated CO2 may lead to rapid N uptake, which could result in increased early vegetative growth.

Original languageEnglish (US)
Pages (from-to)160-168
Number of pages9
JournalAgronomy Journal
Volume97
Issue number1
StatePublished - Jan 2005

Fingerprint

free air carbon dioxide enrichment
carbon dioxide
aboveground biomass
wheat
biomass
nitrogen
soil
irrigation
air
irrigation rates
spring wheat
dough
vegetative growth
evapotranspiration
water stress
Triticum aestivum
growing season
flowering
uptake mechanisms
sampling

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Adamsen, F. J., Wechsung, G., Wechsung, F., Wall, G. W., Kimball, B. A., Pinter, P. J., ... Leavitt, S. (2005). Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE). Agronomy Journal, 97(1), 160-168.

Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE). / Adamsen, F. J.; Wechsung, G.; Wechsung, F.; Wall, G. W.; Kimball, B. A.; Pinter, P. J.; LaMorte, R. L.; Garcia, R. L.; Hunsaker, D. J.; Leavitt, Steven.

In: Agronomy Journal, Vol. 97, No. 1, 01.2005, p. 160-168.

Research output: Contribution to journalArticle

Adamsen, FJ, Wechsung, G, Wechsung, F, Wall, GW, Kimball, BA, Pinter, PJ, LaMorte, RL, Garcia, RL, Hunsaker, DJ & Leavitt, S 2005, 'Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE)', Agronomy Journal, vol. 97, no. 1, pp. 160-168.
Adamsen FJ, Wechsung G, Wechsung F, Wall GW, Kimball BA, Pinter PJ et al. Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE). Agronomy Journal. 2005 Jan;97(1):160-168.
Adamsen, F. J. ; Wechsung, G. ; Wechsung, F. ; Wall, G. W. ; Kimball, B. A. ; Pinter, P. J. ; LaMorte, R. L. ; Garcia, R. L. ; Hunsaker, D. J. ; Leavitt, Steven. / Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE). In: Agronomy Journal. 2005 ; Vol. 97, No. 1. pp. 160-168.
@article{c1cd175963294ec4a2070cba3fb8ccd2,
title = "Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE)",
abstract = "Increasing atmospheric CO2 concentrations are expected to increase plant production and demand for N and other nutrients. The objectives of this investigation were to characterize and quantify the temporal trends in soil mineral N and aboveground biomass N during the growing season of wheat (Triticum aestivum L.) with adequate N, ambient and elevated CO2, and two levels of water stress. The free-air CO2 enrichment (FACE) technique was used to enrich the air from 370 to 550 μmol mol-1 CO2. Spring wheat was planted in late December of 1992 and 1993 and harvested at the end of May. Each main plot (CO2 level) was split into two irrigation treatments to replace 100 and 50{\%} of the potential evapotranspiration. Soil and plant samples were taken for N analysis six times each year. Elevated CO2 lowered soil mineral N concentrations in the top 0.3 m of soil as much as 40{\%} and increased aboveground biomass N by as much as 16{\%} compared with the ambient treatment. Before anthesis, irrigation level had little effect on either soil mineral N or aboveground biomass N, but at harvest in 1992-1993 and at dough stage in 1993-1994 deficit-irrigated plots had higher soil mineral N (p < 0.05) and lower aboveground biomass N than plots that received adequate irrigation. There was little variation in the concentrations of N in the aboveground biomass among treatments within a sampling date. The data suggest elevated CO2 may lead to rapid N uptake, which could result in increased early vegetative growth.",
author = "Adamsen, {F. J.} and G. Wechsung and F. Wechsung and Wall, {G. W.} and Kimball, {B. A.} and Pinter, {P. J.} and LaMorte, {R. L.} and Garcia, {R. L.} and Hunsaker, {D. J.} and Steven Leavitt",
year = "2005",
month = "1",
language = "English (US)",
volume = "97",
pages = "160--168",
journal = "Agronomy Journal",
issn = "0002-1962",
publisher = "American Society of Agronomy",
number = "1",

}

TY - JOUR

T1 - Temporal changes in soil and biomass nitrogen for irrigated wheat grown under free-air carbon dioxide enrichment (FACE)

AU - Adamsen, F. J.

AU - Wechsung, G.

AU - Wechsung, F.

AU - Wall, G. W.

AU - Kimball, B. A.

AU - Pinter, P. J.

AU - LaMorte, R. L.

AU - Garcia, R. L.

AU - Hunsaker, D. J.

AU - Leavitt, Steven

PY - 2005/1

Y1 - 2005/1

N2 - Increasing atmospheric CO2 concentrations are expected to increase plant production and demand for N and other nutrients. The objectives of this investigation were to characterize and quantify the temporal trends in soil mineral N and aboveground biomass N during the growing season of wheat (Triticum aestivum L.) with adequate N, ambient and elevated CO2, and two levels of water stress. The free-air CO2 enrichment (FACE) technique was used to enrich the air from 370 to 550 μmol mol-1 CO2. Spring wheat was planted in late December of 1992 and 1993 and harvested at the end of May. Each main plot (CO2 level) was split into two irrigation treatments to replace 100 and 50% of the potential evapotranspiration. Soil and plant samples were taken for N analysis six times each year. Elevated CO2 lowered soil mineral N concentrations in the top 0.3 m of soil as much as 40% and increased aboveground biomass N by as much as 16% compared with the ambient treatment. Before anthesis, irrigation level had little effect on either soil mineral N or aboveground biomass N, but at harvest in 1992-1993 and at dough stage in 1993-1994 deficit-irrigated plots had higher soil mineral N (p < 0.05) and lower aboveground biomass N than plots that received adequate irrigation. There was little variation in the concentrations of N in the aboveground biomass among treatments within a sampling date. The data suggest elevated CO2 may lead to rapid N uptake, which could result in increased early vegetative growth.

AB - Increasing atmospheric CO2 concentrations are expected to increase plant production and demand for N and other nutrients. The objectives of this investigation were to characterize and quantify the temporal trends in soil mineral N and aboveground biomass N during the growing season of wheat (Triticum aestivum L.) with adequate N, ambient and elevated CO2, and two levels of water stress. The free-air CO2 enrichment (FACE) technique was used to enrich the air from 370 to 550 μmol mol-1 CO2. Spring wheat was planted in late December of 1992 and 1993 and harvested at the end of May. Each main plot (CO2 level) was split into two irrigation treatments to replace 100 and 50% of the potential evapotranspiration. Soil and plant samples were taken for N analysis six times each year. Elevated CO2 lowered soil mineral N concentrations in the top 0.3 m of soil as much as 40% and increased aboveground biomass N by as much as 16% compared with the ambient treatment. Before anthesis, irrigation level had little effect on either soil mineral N or aboveground biomass N, but at harvest in 1992-1993 and at dough stage in 1993-1994 deficit-irrigated plots had higher soil mineral N (p < 0.05) and lower aboveground biomass N than plots that received adequate irrigation. There was little variation in the concentrations of N in the aboveground biomass among treatments within a sampling date. The data suggest elevated CO2 may lead to rapid N uptake, which could result in increased early vegetative growth.

UR - http://www.scopus.com/inward/record.url?scp=13544256417&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=13544256417&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:13544256417

VL - 97

SP - 160

EP - 168

JO - Agronomy Journal

JF - Agronomy Journal

SN - 0002-1962

IS - 1

ER -