Tags

Type your tag names separated by a space and hit enter

Biosolids applications to tall fescue have long-term influence on soil nitrogen, carbon, and phosphorus.
J Environ Qual 2013 Mar-Apr; 42(2):516-22JE

Abstract

Repeated applications of biosolids provide long-term benefits by increasing soil organic matter and N supply but can cause excess accumulation of P. Our objective was to determine the residual effects of repeated surface applications of biosolids on N availability and fate, tall fescue ( Schreb.) response, soil C, and P. A field experiment was started in 1993 to compare two biosolids products, each applied at three rates (6.7, 13.4, and 20.1 Mg ha yr), with synthetic N fertilizer (0 and 403 kg N ha yr as ammonium nitrate). Treatments were surface applied for 10 yr, followed by a 9-yr residual period where all plots received a reduced rate of inorganic N (202 kg N ha yr). Annual measurements included forage yield, N uptake, and soil nitrate N. Soil samples collected in 2002 and 2011 were analyzed for total C and N and Bray-1 P. Cumulative apparent N recoveries in harvested grass (1993-2010) were 51% for biosolids N and 72% for ammonium nitrate. Net fall soil nitrate N summed for the period 1993-2002 ranged from <1 to 3% of N applied. The N applied that was accounted for in forage and soil averaged 74% for biosolids and 73% for ammonium nitrate. Soil C increased in the biosolids treatments, and the increase was equivalent to 27% of biosolids C. Bray-1 P remained at excessive levels (338-629 mg P kg soil) 9 yr after the last biosolids application.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

23673844

Citation

Cogger, Craig G., et al. "Biosolids Applications to Tall Fescue Have Long-term Influence On Soil Nitrogen, Carbon, and Phosphorus." Journal of Environmental Quality, vol. 42, no. 2, 2013, pp. 516-22.
Cogger CG, Bary AI, Myhre EA, et al. Biosolids applications to tall fescue have long-term influence on soil nitrogen, carbon, and phosphorus. J Environ Qual. 2013;42(2):516-22.
Cogger, C. G., Bary, A. I., Myhre, E. A., & Fortuna, A. M. (2013). Biosolids applications to tall fescue have long-term influence on soil nitrogen, carbon, and phosphorus. Journal of Environmental Quality, 42(2), pp. 516-22. doi:10.2134/jeq2012.0269.
Cogger CG, et al. Biosolids Applications to Tall Fescue Have Long-term Influence On Soil Nitrogen, Carbon, and Phosphorus. J Environ Qual. 2013;42(2):516-22. PubMed PMID: 23673844.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biosolids applications to tall fescue have long-term influence on soil nitrogen, carbon, and phosphorus. AU - Cogger,Craig G, AU - Bary,Andy I, AU - Myhre,Elizabeth A, AU - Fortuna,Ann-Marie, PY - 2013/5/16/entrez PY - 2013/5/16/pubmed PY - 2016/4/24/medline SP - 516 EP - 22 JF - Journal of environmental quality JO - J. Environ. Qual. VL - 42 IS - 2 N2 - Repeated applications of biosolids provide long-term benefits by increasing soil organic matter and N supply but can cause excess accumulation of P. Our objective was to determine the residual effects of repeated surface applications of biosolids on N availability and fate, tall fescue ( Schreb.) response, soil C, and P. A field experiment was started in 1993 to compare two biosolids products, each applied at three rates (6.7, 13.4, and 20.1 Mg ha yr), with synthetic N fertilizer (0 and 403 kg N ha yr as ammonium nitrate). Treatments were surface applied for 10 yr, followed by a 9-yr residual period where all plots received a reduced rate of inorganic N (202 kg N ha yr). Annual measurements included forage yield, N uptake, and soil nitrate N. Soil samples collected in 2002 and 2011 were analyzed for total C and N and Bray-1 P. Cumulative apparent N recoveries in harvested grass (1993-2010) were 51% for biosolids N and 72% for ammonium nitrate. Net fall soil nitrate N summed for the period 1993-2002 ranged from <1 to 3% of N applied. The N applied that was accounted for in forage and soil averaged 74% for biosolids and 73% for ammonium nitrate. Soil C increased in the biosolids treatments, and the increase was equivalent to 27% of biosolids C. Bray-1 P remained at excessive levels (338-629 mg P kg soil) 9 yr after the last biosolids application. SN - 0047-2425 UR - https://www.unboundmedicine.com/medline/citation/23673844/Biosolids_applications_to_tall_fescue_have_long_term_influence_on_soil_nitrogen_carbon_and_phosphorus_ L2 - http://dl.sciencesocieties.org/publications/jeq/articles/42/2/516 DB - PRIME DP - Unbound Medicine ER -