| |
| DOI: | 10.1016/j.soilbio.2004.05.004 |
|---|
| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0038071704002135
Last checked: 04/04/2013
Access conditions: Item is within a limited-access website
http://pdn.sciencedirect.com/science?_ob=MiamiImageURL&_cid=271195&_user=1111158&_pii=S0038071704002135&_check=y&_origin=article&_zone=toolbar&_coverDate=2004--30&view=c&originContentFamily=serial&wchp=dGLbVlS-zSkzS&md5=55e3eb2cf5eb1be9ef9c216686040048&pid=1-s2.0-S0038071704002135-main.pdf
Last checked: 04/04/2013
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Refereed |
|---|
| Author(s): | Wright, Alan L.;
Hons, Frank M.;
Rouquette, Francis M. Jr. |
|---|
| Author Affiliation: | Wright and Hons: Department of Soil and Crop Sciences, Texas A&M University, College Station; Rouquette: Texas A&M University Agricultural Research and Extension Center, Overton, TX |
|---|
| Title: | Long-term management impacts on soil carbon and nitrogen dynamics of grazed bermudagrass pastures |
|---|
| Source: | Soil Biology & Biochemistry. Vol. 36, No. 11, November 2004, p. 1809-1816. |
|---|
| Publishing Information: | Amsterdam, The Netherlands: Elsevier |
|---|
| # of Pages: | 8 |
|---|
| Keywords: | TIC Keywords: Carbon sequestration; Chemical properties of soil; Cynodon dactylon; Nitrogen; Nitrogen mineralization; Pastures; Soil organic carbon
|
|---|
| Abstract/Contents: | "Managed pastures have potential for C and N sequestration in addition to providing forage for livestock. Our objectives were to investigate changes in soil organic C (SOC) and soil organic N (SON) concentrations and mineralizable C and N in cattle (Bos indicus) grazed bermudagrass [Cynodon dactylon (L.) Pers.] pastures up to 32 y after establishment. Management included low- and high-grazing intensity, fertilization, and winter overseeding with annual ryegrass (Lolium multiflorum Lam.) and clover (Trifolium sp.). Soil (0-15 cm) was sampled 7, 15, 26, and 32 y after establishment of Coastal and common bermudagrass pastures. No significant differences in SOC or SON concentrations were observed between Coastal and common bermudagrass pastures. Grazing strategies played important roles in C and N sequestration, as high-grazing intensity resulted in a lower increase in SOC and SON concentrations over time compared to low-grazing intensity. Increases in SOC were observed up to 26 y, while increases in SON were observed up to 32 y after establishment of bermudagrass pastures. Soil organic C increased 67 and 39% from 7 to 26 y at low-grazing intensity for bermudagrass+ryegrass and bermudagrass+clover pastures, respectively. SOC and SON concentrations did not increase beyond 15 y after bermudagrass establishment at high-grazing intensity. An exception was the Coastal bermudagrass+ryegrass pastures, which exhibited higher SON at 32 y than at 7 y at both grazing intensities. By 32 y, SON increased 83 and 45% in Coastal bermudagrass+ryegrass pastures at low- and high-grazing intensity, respectively, compared to 7 y. The introduction of clover to pastures decreased SOC and SON relative to ryegrass at high- but not at low-grazing intensity. Potentially mineralizable C increased from 7 to 15 y, while mineralizable N increased from 7 to 32 y. Potentially mineralizable N was also greater for bermudagrass+clover than bermudagrass+ryegrass pastures. Long-term increases in SOC and SON concentrations suggest that managed and grazed pastures have strong potential for C and N sequestration." |
|---|
| Language: | English |
|---|
| References: | 43 |
|---|
| Note: | Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wright, A. L., F. M. Hons, and F. M. Jr. Rouquette. 2004. Long-term management impacts on soil carbon and nitrogen dynamics of grazed bermudagrass pastures. Soil Biol. Biochem. 36(11):p. 1809-1816. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=217667 |
| If there are problems with this record, send us feedback about record 217667. |
| Choices for finding the above item: |
|---|
| DOI: 10.1016/j.soilbio.2004.05.004 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0038071704002135
Last checked: 04/04/2013
Access conditions: Item is within a limited-access website
http://pdn.sciencedirect.com/science?_ob=MiamiImageURL&_cid=271195&_user=1111158&_pii=S0038071704002135&_check=y&_origin=article&_zone=toolbar&_coverDate=2004--30&view=c&originContentFamily=serial&wchp=dGLbVlS-zSkzS&md5=55e3eb2cf5eb1be9ef9c216686040048&pid=1-s2.0-S0038071704002135-main.pdf
Last checked: 04/04/2013
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2217194 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
