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DOI: | 10.1002/eap.2047 |
Web URL(s): | https://esajournals.onlinelibrary.wiley.com/doi/10.1002/eap.2047 Last checked: 1/15/2020 Access conditions: Item is within a limited-access website https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/eap.2047 Last checked: 1/15/2021 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Jach-Smith, Laura C.;
Jackson, Randall D. |
Author Affiliation: | Jach-Smith: Nelson Institute for Environmental Studies, University of Wisconsin-Madison, Madison, Wisconsin and DOE-Great Lakes Bioenergy Research Center, Madison, Wisconsin; Jackson: Nelson Institute for Environmental Studies, University of Wisconsin-Madison, Madison, Wisconsin and DOE-Great Lakes Bioenergy Research Center, Madison, Wisconsin and Department of Agronomy, University of Wisconsin-Madison, Madison, Wisconsin |
Title: | Inorganic N addition replaces N supplied to switchgrass (Panicum virgatum) by arbuscular mycorrhizal fungi |
Source: | Ecological Applications. Vol. 30, No. 2, March 2020, p. [1-11]. |
Publishing Information: | Washington, D. C.: Ecological Society of America |
# of Pages: | 11 |
Related Web URL: | https://esajournals.onlinelibrary.wiley.com/doi/abs/10.1002/eap.2047 Last checked: 09/29/2021 Notes: Abstract only |
Keywords: | Author-Supplied Keywords: 15N; AMF; Bioenergy crops; Extra-radical mycelium; Grasslands; Isotopic abundance; Nitrogen supply; Nitrogen transfer; Perennial grasses
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Abstract/Contents: | "Arbuscular mycorrhizal fungi (AMF) provide many benefits in agroecosystems including improved soil tilth, carbon sequestration, and water and nutrient transfer to plants. AMF are known to affect plant nitrogen (N) dynamics and transfer N to plants, but there have been few studies addressing whether the amount of N transferred to plants by AMF is agronomically relevant. We used d15N natural abundance methods and d15N mass balance equations to estimate the amount of plant N derived from AMF transfer in perennial grasses managed for bioenergy production under different N addition treatments (0, 56, and 196 kg N/ha). Differentiation of d15N among plant, soil N, and AMF pools was higher than anticipated leading to calculations of 3455% of plant N transferred by AMF in the treatments receiving no N addition to 622% of plant N transferred to plants in high-N addition treatments. AMF extra-radical hyphae biomass was significantly reduced in the high-N (196 kg N/ha) addition treatments, which was negatively correlated to enriched plant d15N. Our results suggest that N addition decreases AMF N transfer to plants. When N was limiting to plant growth, AMF supplied agronomically significant amounts of plant N, and a higher proportion of overall plant N. Because differentiation between N pools was greater than expected, stable isotope measurements can be used to estimate N transfer to AMF plant hosts." |
Language: | English |
References: | 64 |
Note: | Figures Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Jach-Smith, L. C., and R. D. Jackson. 2020. Inorganic N addition replaces N supplied to switchgrass (Panicum virgatum) by arbuscular mycorrhizal fungi. Ecol. Appl. 30(2):p. [1-11]. |
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| DOI: 10.1002/eap.2047 |
| Web URL(s): https://esajournals.onlinelibrary.wiley.com/doi/10.1002/eap.2047 Last checked: 1/15/2020 Access conditions: Item is within a limited-access website https://esajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/eap.2047 Last checked: 1/15/2021 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b4884586a |
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