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Web URL(s): | https://dl.sciencesocieties.org/publications/jeq/articles/32/2/681 Last checked: 12/16/2016 https://dl.sciencesocieties.org/publications/jeq/pdfs/32/2/681 Last checked: 12/16/2016 Requires: PDF Reader |
Publication Type:
| Refereed |
Author(s): | Adeli, A.;
Varco, J. J.;
Rowe, D. E. |
Author Affiliation: | Adeli and Rowe: USDA-ARS, Waste Management and Forage Research Unit, Mississippi State, Mississippi; Varco: Plant and Soil Sciences Department, Mississippi State University, Mississippi State, Mississippi |
Title: | Swine effluent irrigation rate and timing effects on bermudagrass growth, nitrogen and phosphorous utilization, and residual soil nitrogen |
Section: | Waste management Other records with the "Waste management" Section
|
Source: | Journal of Environmental Quality. Vol. 32, No. 2, March/April 2003, p. 681-686. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
# of Pages: | 6 |
Keywords: | TIC Keywords: Wastes; Irrigation rates; Cynodon dactylon; Phosphorus; Nitrogen use; Clay soils; Irrigation scheduling; Pig slurry; Effluents
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Abstract/Contents: | "Maximizing utilization of effluent nutrients by forage grasses requires a better understanding of irrigation rate and timing effects. This study was conducted in 1998 and 1999 on a Vaiden silty clay (very-fine, smectitic, thermic Aquic Dystrudert) soil to determine the effects of swine lagoon effluent irrigation rate and timing on bermudagrass [Cynodon dactylon (L.) Pers.] growth, nitrogen (N) and phosphorous (P) recovery, and postseason soil profile NO3--N. Treatments consisted of swine effluent irrigation at the rates of 0, 5, 10, 15, and 20 ha-cm. Two additional treatments included 2.5 ha-cm applied on 1 September and 1 October in addition to a base summer rate of 10 ha-cm. In both years for early to mid-season irrigation, bermudagrass dry matter yield quadratically increased with increasing swine effluent irrigation rates. Averaged across years, effluent irrigation in October resulted in 30% less dry matter than in September. For late-season irrigation, apparent N recovery averaged 59% less and P recovery averaged 46% less with a delay in irrigation from 1 September to 1 October. The greatest quantity of soil NO3--N was associated with both the greatest effluent rate and October irrigation treatments. Minimal yield benefit was obtained when effluent was applied at rates greater than 10 ha-cm during the summer months. Late-season irrigation, especially after 1 October for areas with similar climatic conditions, should be avoided to maximize synchronization of nutrient availability with maximum growth rates to minimize potential offsite movement of residual soil N and P." |
Language: | English |
References: | 25 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Adeli, A., J. J. Varco, and D. E. Rowe. 2003. Swine effluent irrigation rate and timing effects on bermudagrass growth, nitrogen and phosphorous utilization, and residual soil nitrogen. J. Environ. Qual. 32(2):p. 681-686. |
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| Web URL(s): https://dl.sciencesocieties.org/publications/jeq/articles/32/2/681 Last checked: 12/16/2016 https://dl.sciencesocieties.org/publications/jeq/pdfs/32/2/681 Last checked: 12/16/2016 Requires: PDF Reader |
| MSU catalog number: S 900 .J6 |
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