Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics
There is a critical need to investigate how land application of dedicated biofuel oilseed meals affects soil ecosystems. In this study, mustard (Brassica juncea) and flax (Linum usitatissimum) seed meals and sorghum-sudangrass (Sorghum bicolor) were added to soil at levels of 0, 1, 2.5, and 5% (w/w)...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2012/351609 |
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| author | Autumn S. Wang Ping Hu Emily B. Hollister Katie L. Rothlisberger Anil Somenahally Tony L. Provin Frank M. Hons Terry J. Gentry |
| author_facet | Autumn S. Wang Ping Hu Emily B. Hollister Katie L. Rothlisberger Anil Somenahally Tony L. Provin Frank M. Hons Terry J. Gentry |
| author_sort | Autumn S. Wang |
| collection | DOAJ |
| description | There is a critical need to investigate how land application of dedicated biofuel oilseed meals affects soil ecosystems. In this study, mustard (Brassica juncea) and flax (Linum usitatissimum) seed meals and sorghum-sudangrass (Sorghum bicolor) were added to soil at levels of 0, 1, 2.5, and 5% (w/w). Both the type of amendment and application rate affected soil organic C, total C & N, and C & N mineralization. Mustard meal amendment initially inhibited C mineralization as compared to flax, but >50% of mustard and flax organic C was mineralized within 51 d. Nitrogen mineralization was similar for flax and mustard, except for the 2.5% rate for which a lower proportion of mustard N was converted to nitrate. The mustard meal greatly impacted microbial community composition, appearing to select for specific fungal populations. The potential varying impacts of different oilseed meals on soil ecosystems should be considered when developing recommendations for land application. |
| format | Article |
| id | doaj-art-0cb7d65566234046bbc326ab7fa2180a |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-0cb7d65566234046bbc326ab7fa2180a2025-02-03T06:00:04ZengWileyApplied and Environmental Soil Science1687-76671687-76752012-01-01201210.1155/2012/351609351609Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial DynamicsAutumn S. Wang0Ping Hu1Emily B. Hollister2Katie L. Rothlisberger3Anil Somenahally4Tony L. Provin5Frank M. Hons6Terry J. Gentry7Department of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USADepartment of Soil and Crop Sciences, Texas A&M University, 370 Olsen Boulevard, Heep Center 550A, 2474 TAMU, College Station, TX 77843-2474, USAThere is a critical need to investigate how land application of dedicated biofuel oilseed meals affects soil ecosystems. In this study, mustard (Brassica juncea) and flax (Linum usitatissimum) seed meals and sorghum-sudangrass (Sorghum bicolor) were added to soil at levels of 0, 1, 2.5, and 5% (w/w). Both the type of amendment and application rate affected soil organic C, total C & N, and C & N mineralization. Mustard meal amendment initially inhibited C mineralization as compared to flax, but >50% of mustard and flax organic C was mineralized within 51 d. Nitrogen mineralization was similar for flax and mustard, except for the 2.5% rate for which a lower proportion of mustard N was converted to nitrate. The mustard meal greatly impacted microbial community composition, appearing to select for specific fungal populations. The potential varying impacts of different oilseed meals on soil ecosystems should be considered when developing recommendations for land application.http://dx.doi.org/10.1155/2012/351609 |
| spellingShingle | Autumn S. Wang Ping Hu Emily B. Hollister Katie L. Rothlisberger Anil Somenahally Tony L. Provin Frank M. Hons Terry J. Gentry Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics Applied and Environmental Soil Science |
| title | Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics |
| title_full | Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics |
| title_fullStr | Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics |
| title_full_unstemmed | Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics |
| title_short | Impact of Indian Mustard (Brassica juncea) and Flax (Linum usitatissimum) Seed Meal Applications on Soil Carbon, Nitrogen, and Microbial Dynamics |
| title_sort | impact of indian mustard brassica juncea and flax linum usitatissimum seed meal applications on soil carbon nitrogen and microbial dynamics |
| url | http://dx.doi.org/10.1155/2012/351609 |
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