Research Project: Developing Best Management Practices for Poultry Litter to Improve Agronomic Value and Reduce Air, Soil and Water Pollution

Location: Poultry Production and Product Safety Research

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Native warm-season grass response to nitrogen fertilization - (Peer Reviewed Journal)
Bisangwa, E., Keyser, P., Walker, F., Richwiine, J., Ashworth, A.J. 2024. Native warm-season grass response to nitrogen fertilization. Agronomy Journal. 14(1). Article 180. https://doi.org/10.3390/agronomy14010180.

Insect frass composition and potential use as an organic fertilizer in circular economies - (Peer Reviewed Journal)
Amorim, H., Ashworth, A.J., Arsi, K., Rojas, M.G., Morales Ramos, J.A., Donoghue, A.M., Robinson, K. 2024. Insect frass composition and potential use as an organic fertilizer in circular economies. Journal of Economic Entomology. Article toad234. https://doi.org/10.1093/jee/toad234.

Using partial least squares and regression to interpret temperature and precipitation effects on maize and soybean genetic variance expression - (Peer Reviewed Journal)
Ashworth, A.J., Allen, F., Saxton, A. 2023. Using partial least squares and regression to interpret temperature and precipitation effects on maize and soybean genetic variance expression. Agronomy Journal. 13(11). Article 13112752. https://doi.org/10.3390/agronomy13112752.

Short term effects of composted digestate on soil health and crop yield: Implication for sustainable waste management in the bioenergy sector - (Peer Reviewed Journal)
Gurmessa, B., Cocco, S., Cardelli, V., Ilari, A., Serrani, D., Ashworth, A.J., Fornasier, F., Del Gatto, A., Pedretti, E.F., Corti, G. 2024. Short term effects of composted digestate on soil health and crop yield: Implication for sustainable waste management in the bioenergy sector. Science of the Total Environment. 906. Article 167208. https://doi.org/10.1016/j.scitotenv.2023.167208.

Long-term impacts of conservation pasture management in manuresheds on system-level microbiome and antibiotic resistance genes - (Peer Reviewed Journal)
Seyoum, M., Ashworth, A.J., Feye, K.M., Owens, P.R., Moore Jr, P.A., Rickie, S., Savin, M. 2023. Long-term impacts of conservation pasture management in manuresheds on system-level microbiome and antibiotic resistance genes. Frontiers in Microbiology. 14. Article 1227006. https://doi.org/10.3389/fmicb.2023.1227006.

Framework to develop an open-source forage data network to improve primary productivity and enhancing system resiliency - (Peer Reviewed Journal)
Ashworth, A.J., Marshall, L., Volenec, J., Casler, M., Berti, M., Van Santen, E., William, C., Gopakumar, V., Foster, J., Propst, T., Picasso, V., Jianzhong, S. 2023. Framework to develop an open-source forage data network to improve primary productivity and enhancing system resiliency. Agronomy Journal. 115(6):3062-3073. https://doi.org/10.1002/agj2.21441.

Relationships among apparent electrical conductivity and plant and terrain data in an agroforestry system in the Ozark Highlands - (Peer Reviewed Journal)
Ylagan, S., Brye, K.R., Ashworth, A.J., Owens, P.R., Smith, H., Poncet, A.M., Sauer, T.J., Thomas, A.L., Philipp, D. 2023. Relationships among apparent electrical conductivity and plant and terrain data in an agroforestry system in the Ozark Highlands. Agrosystems, Geosciences & Environment. 6(3):1-16. https://doi.org/10.1002/agg2.20414.

Boundary line analysis and machine learning models to identify critical soil values for major crops in Guatemala - (Peer Reviewed Journal)
Smith, H., Ashworth, A.J., Nalley, L., Schmidt, A., Turmel, M., Owens, P.R. 2023. Boundary line analysis and machine learning models to identify critical soil values for major crops in Guatemala. Agronomy Journal. 1-17. https://doi.org/10.1002/agj2.21412.

Soil Management Assessment Framework (SMAF) in temperate and subtropical agroecosystems: A comparative analysis - (Abstract Only)

Poultry litter physiochemical characterization based on production conditions for circular systems - (Peer Reviewed Journal)
Katuwal, S., Nur-Al-Sarah, R., Ashworth, A.J., Kolar, P. 2023. Poultry litter physiochemical characterization based on production conditions for circular systems. BioResources. 18(2):3961-3977. https://www.doi.org/10.15376/biores.18.2.3961-3977.

An evaluation of nitrogen indicators for soil health in long-term agricultural experiments - (Peer Reviewed Journal)
Liptzin, D., Rieke, E.L., Cappellazzi, S.B., Mac Bean, G., Cope, M., Greub, K.H., Norris, C.E., Tracy, P.W., Aberle, P.W., Ashworth, A.J., Baumhardt, R.L., Dell, C.J., Derner, J.D., Ducey, T.F., Dungan, R.S., Fortuna, A., Franzluebbers, A.J., Kautz, M.A., Kitchen, N.R., Leytem, A.B., Liebig, M.A., Moore Jr, P.A., Osborne, S.L., Owens, P.R., Sainju, U.M., Sherrod, L.A., Watts, D.B. 2023. An evaluation of nitrogen indicators for soil health in long-term agricultural experiments. Soil Science Society of America Journal. 87(4):868-884. https://doi.org/10.1002/saj2.20558.

Trace metal uptake in forage systems receiving long-term applications of alum-treated or untreated poultry litter - (Peer Reviewed Journal)
Ashworth, A.J., Moore Jr, P.A. 2023. Trace metal uptake in forage systems receiving long-term applications of alum-treated or untreated poultry litter. Crop Science. 63(3):1634–1645. https://doi.org/10.1002/csc2.20918.

Forage Data Hub – A platform for sharing valuable datasets for resilience - (Proceedings)

Using apparent electrical conductivity to delineate field variation in an agroforestry system in the Ozark Highlands - (Peer Reviewed Journal)
Ylangan, S., Brye, K.R., Ashworth, A.J., Owens, P.R., Smith, H., Poncet, A.M. 2022. Using apparent electrical conductivity to delineate field variation in an agroforestry system in the Ozark Highlands. Remote Sensing. 14(22). Article 5777. https://doi.org/10.3390/rs14225777.

Perenniality drives multifunctional forage-biomass filter strips’ ability to improve water quality - (Peer Reviewed Journal)
Ashworth, A.J., Katuwal, S., Moore Jr, P.A., Adams, T.C., Anderson, K.R., Owens, P.R. 2022. Perenniality drives multifunctional forage-biomass filter strips’ ability to improve water quality. Crop Science. 63:336–348. https://doi.org/10.1002/csc2.20878.

Characterization of nutrient runoff from perennial and annual forages following broiler litter application - (Peer Reviewed Journal)
Katuwal, S., Ashworth, A.J., Moore Jr, P.A., Owens, P.R. 2022. Characterization of nutrient runoff from perennial and annual forages following broiler litter application. Journal of Environmental Quality. 52(1):88–99. https://doi.org/10.1002/jeq2.20425.

Evaluation of aggregate stability methods for soil health - (Peer Reviewed Journal)
Rieke, E.L., Bagnall, D.K., Morgan, C., Greub, K., Bean, G.M., Cappellazzi, S.B., Cope, M., Liptzin, D., Norris, C.E., Tracy, P.W., Ashworth, A.J., Baumhardt, R.L., Dell, C.J., Derner, J.D., Ducey, T.F., Fortuna, A., Kautz, M.A., Kitchen, N.R., Leytem, A.B., Liebig, M.A., Moore Jr., P.A., Osborne, S.L., Owens, P.R., Sainju, U.M., Sherrod, L.A., Watts, D.B., et al. 2022. Evaluation of aggregate stability methods for soil health. Geoderma. 428. Article 116156. https://doi.org/10.1016/j.geoderma.2022.116156.

Characterization of poultry litter biochar and activated biochar as a soil amendment for valorization - (Peer Reviewed Journal)
Katuwal, S., Ashworth, A.J., Rafsan, N., Praveen, K. 2022. Characterization of poultry litter biochar and activated biochar as a soil amendment for valorization. Biomass. 2(4):209-223. https://doi.org/10.3390/biomass2040014.

GIS-based evaluation of soil suitability for optimized production on U.S. Tribal Lands - (Peer Reviewed Journal)
Smith, H.W., Ashworth, A.J., Owens, P.R. 2022. GIS-based evaluation of crop and soil suitability for optimized production on U.S. Tribal Lands. Agriculture. 12(9). Article 1307. https://doi.org/10.3390/agriculture12091307.

Doing research on U.S. Tribal Lands: Strengthening nation-to-nation collaborations - (Popular Publication)
Ashworth, A.J. 2022. Doing research on U.S. Tribal Lands: Strengthening nation-to-nation collaborations. CSA News. Article 20888. 1-2. https://doi.org/10.1002/csan.20888.

Evaluation of five C4 forages grasses in the tall Fescue Belt - (Peer Reviewed Journal)
Keyser, P.D., Zechiel, K.E., Bates, G.E., Ashworth, A.J., Nave, R.L., Rhinehart, J.D., McIntosh, D.W. 2022. Evaluation of five C4 forages grasses in the tall Fescue Belt. Agronomy Journal. 114:3347-3357. https://doi.org/10.1002/agj2.21195.

Monitoring and assessment of reclamation at tar creek superfund site using timeseries satellite imagery - (Abstract Only)

Twenty-year phosphorus trends in forage systems receiving aluminum sulfate-treated poultry litter - (Peer Reviewed Journal)
Ashworth, A.J., Moore Jr., P.A., Bacon, T., Martin, J.W., Anderson, K.R. 2022. Twenty-year phosphorus trends in forage systems receiving aluminum sulfate-treated poultry litter. Agronomy Journal. 114(4):2310-2319. https://doi.org/10.1002/agj2.21132.

Selecting soil hydraulic properties as indicators of soil health: Measurement response to management and site characteristics - (Peer Reviewed Journal)
Bagnall, D.K., Morgan, C., Bean, G.M., Liptzin, D., Cappellazzi, S., Cope, M., Greub, K.L., Norris, C.E., Rieke, E.L., Tracy, P.W., Ashworth, A.J., Baumhardt, R.L., Dell, C.J., Derner, J.D., Ducey, T.F., Fortuna, A., Kautz, M.A., Kitchen, N.R., Leytem, A.B., Liebig, M.A., Moore Jr, P.A., Osborne, S.L., Owens, P.R., Sainju, U.M., Sherrod, L.A., Watts, D.B. 2022. Selecting soil hydraulic properties as indicators of soil health: Measurement response to management and site characteristics. Soil Science Society of America Journal. 86(5):1206-1226. https://doi.org/10.1002/saj2.20428.

Preferential transport of phosphorus from surface-applied poultry litter in soils from karst and non-karst landscapes - (Peer Reviewed Journal)
Katuwal, S., Ashworth, A.J., Moore Jr, P.A., Brye, K., Schmidt, M.D., Vanotti, M.B., Owens, P.R. 2022. Preferential transport of phosphorus from surface-applied poultry litter in soils from karst and non-karst landscapes. Soil Science Society of America Journal. 86:1002-1014. https://doi.org/10.1002/saj2.20424.

Environmental impact assessment of tractor guidance systems based on pasture management scenarios - (Peer Reviewed Journal)
Ashworth, A.J., Putman, B., Kharel, T.P., Thoma, G., Shew, A., Popp, M., Owens, P.R. 2022. Environmental impact assessment of tractor guidance systems based on pasture management scenarios. Journal of the ASABE. 65(3):645-653. https://doi.org/10.13031/ja.14930.

Long-term sustainability implications of diverse commercial pollinator mixtures for the conservation reserve program - (Peer Reviewed Journal)
Ashworth, A.J., Adams, T.C., Jacobs, A. 2022. Long-term sustainability implications of diverse commercial pollinator mixtures for the conservation reserve program. Agronomy Journal. 12(3):549. https://doi.org/10.3390/agronomy12030549.

Multivariate evaluation of watershed health based on longitudinal pasture management - (Peer Reviewed Journal)
Ashworth, A.J., Katuwal, S., Moore Jr, P.A., Owens, P.R. 2022. Multivariate evaluation of watershed health based on longitudinal pasture management. Science of the Total Environment. 824. Article 153725. https://doi.org/10.1016/j.scitotenv.2022.153725.

Evaluating optimum seeding distances from subsurface banding poultry litter in crop rotations - (Peer Reviewed Journal)
Ashworth, A.J., Nieman, C.C. 2022. Evaluating optimum seeding distances from subsurface banding poultry litter in crop rotations. Agricultural & Environmental Letters. 7(1). Article e20063. https://doi.org/10.1002/ael2.20063.