Full TGIF Record # 244528
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DOI:10.1016/0167-8809(91)90056-4
Web URL(s):http://www.sciencedirect.com/science/article/pii/0167880991900564
    Last checked: 10/09/2015
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Publication Type:
i
Report
Author(s):Sweeney, D. W.; Graetz, D. A.
Author Affiliation:Sweeney: Southeast Kansas Experiment Station, Kansas State University, Parsons, KS; Graetz: Soil Science Department, University of Florida, Gainesville, FL
Title:Application of distillery waste anaerobic digester effluent to St. Augustinegrass
Source:Agriculture, Ecosystems, and Environment. Vol. 33, No. 4, February 1 1991, p. 341-351.
# of Pages:11
Publishing Information:Amsterdam, The Netherlands: Elsevier Science Publishers
Keywords:TIC Keywords: Effluent water; Evaluations; Irrigation water quality; Nutrient uptake; Stenotaphrum secundatum; Wastes
Abstract/Contents:"Effluent that results from methane anaerobic digestion needs to be disposed of or utilized. The objective of this glasshouse study was to examine the effect of rum distillery anaerobic digester effluent application rate on St. Augustinegrass (Stenotaphum secundatum Kuntze) growth and elemental uptake to determine the feasibility of land application. The initial application rates were 0, 0.22, 0.44, and 0.88 cm of the liquid effluent per week, equivalent to 0, 22, 44, and 88 g total solids (TS) per pot, respectively, for the first 4 months of the study. Because of apparent plant stress, effluent application was eliminated for the high application rate during the final 4 months of the experiment. Therefore, at the end of 8 months, effluent application totals were 0, 44, 88, and 88 g TS per pot, respectively for the four treatments. Since both of the two higher rate treatments received a total of 88 g TS per pot, treatments were designated as 0-[8mo], 44-[8mo], 88-[8mo], and 88-[4mo] to denote the time frame in which the total amount of effluent was applied. During the initial 4 months, St. Augustinegrass dry matter yield was more than 60% higher with the two lower application rates, 44-[8mo] and 88-[8mo], as compared with the higher 88-[4mo] application rate or the 0-[8mo] effluent control. By the end of the initial 4-month period, the high 88-[4mo] treatment had resulted in plant chlorosis and drying tissue and thus slightly lower cumulative dry matter yield than obtained with the control. During the second 4-month period, dry matter yield was similar for the 88-[8mo] and 88-[4mo] rates, but both were approximately one-half that obtained with the 44-[8mo] application rate. In general, uptake of measured elements increased with increased dry matter production. However, relative differences in K, Al, and Mn uptake appeared larger than observed with yield differences. As expected, soil concentrations of most elements measured were increased with effluent applications, especially K and Na. The addition of effluent, regardless of rate, raised soil pH from 6.5 to approximately 9, owing to increases in soil K, Na, Mg, and Ca levels. The data from this study suggest that the lowest effluent application rate, 44-[8mo] (equivalent to 0.22 cm week-1) may result in acceptable St. Augustinegrass growth. However, the apparent elemental buildup in the soil and the potential adverse effects on groundwater quality suggest that even lower rates may be necessary for longer-term continuous disposal of the distillery waste anaerobic digester effluent."
Language:English
References:33
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sweeney, D. W., and D. A. Graetz. 1991. Application of distillery waste anaerobic digester effluent to St. Augustinegrass. Agric. Ecosyst. Environ. 33(4):p. 341-351.
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DOI: 10.1016/0167-8809(91)90056-4
Web URL(s):
http://www.sciencedirect.com/science/article/pii/0167880991900564
    Last checked: 10/09/2015
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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