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| Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/32/3/996
Last checked: 12/16/2016
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/3/996
Last checked: 12/16/2016
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Woodard, Kenneth R.;
French, Edwin C.;
Sweat, Lewin A.;
Graetz, Donald A.;
Sollenberger, Lynn E.;
Macoon, Bisoondat;
Portier, Kenneth M.;
Rymph, Stuart J.;
Wade, Brett L.;
Prine, Gordon M.;
Van Horn, Harold H. |
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| Author Affiliation: | Woodard, French, Sweat, Sollenberger, Rymph, Wade, Prine: Agronomy Department, University of Florida, Gainesville, Florida; Graetz: Soil and Water Science Department, University of Florida, Gainesville, Florida; Portier: Statistics Department, University of Florida, Gainesville, Florida; Van Horn: Animal Sciences Department, University of Florida, Gainesville, Florida; Macoon: Central Mississippi Research and Extension Center, Mississippi State University, Raymond, Mississippi |
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| Title: | Nitrogen removal and nitrate leaching for two perennial, sod-based forage systems receiving dairy effluent |
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| Section: | Plant and environment interactions
Other records with the "Plant and environment interactions" Section
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| Source: | Journal of Environmental Quality. Vol. 32, No. 3, May/June 2003, p. 996-1007. |
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| Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Nitrogen; Nitrates; Leaching; Sod; Forage crops; Cynodon; Zea mays; Secale cereale
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| Abstract/Contents: | "In northern Florida, year-round forage systems are used in dairy effluent sprayfields to reduce nitrate leaching. Our purpose was to quantify forage N removal and monitor nitrate N (NO3--N) concentration below the rooting zone for two perennial, sod-based, triple-cropping systems over four 12-mo cycles (1996-2000). The soil is an excessively drained Kershaw sand (thermic, uncoated Typic Quartzipsamment). Effluent N rates were 500, 690, and 910 kg ha-1 per cycle. Differences in N removal between a corn (Zea mays L.)-bermudagrass (Cynodon spp.)-rye (Secale cereale L.) system (CBR) and corn-perennial peanut (Arachis glabrata Benth.)-rye system (CPR) were primarily related to the performance of the perennial forages. Nitrogen removal of corn (125-170 kg ha-1) and rye (62-90 kg ha-1) was relatively stable between systems and among cycles. The greatest N removal was measured for CBR in the first cycle (408 kg ha-1), with the bermudagrass removing an average of 191 kg N ha-1. In later cycles, N removal for bermudagrass declined because dry matter (DM) yield declined. Yield and N removal of perennial peanut increased over the four cycles. Nitrate N concentrations below the rooting zone were lower for CBR than CPR in the first two cycles, but difference were inconsistent in the latter two. The CBR system maintained low NO3--N leaching in the first cycle when the bermudagrass was the most productive; however, it was not a sustainable system for long-term prevention of NO3--N leaching due to delcining bermudagrass yield in subsequent cycles. For CPR, effluent N rates ā„ 500 kg ha-1 yr-1 have the potential to negatively affect ground water quality." |
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| Language: | English |
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| References: | 30 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Woodard, K. R., E. C. French, L. A. Sweat, D. A. Graetz, L. E. Sollenberger, B. Macoon, et al. 2003. Nitrogen removal and nitrate leaching for two perennial, sod-based forage systems receiving dairy effluent. J. Environ. Qual. 32(3):p. 996-1007. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/jeq/articles/32/3/996
Last checked: 12/16/2016
https://dl.sciencesocieties.org/publications/jeq/pdfs/32/3/996
Last checked: 12/16/2016
Requires: PDF Reader |
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MSU catalog number: S 900 .J6 |
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