Raymond Weil
Professor of Soil Science at the University of Maryland
Research Interests
Publications
Fall cover crop nitrogen uptake drives reductions in winter‐spring leaching
Journal of Environmental Quality / Apr 06, 2022
Sedghi, N., & Weil, R. (2022). Fall cover crop nitrogen uptake drives reductions in winter‐spring leaching. Journal of Environmental Quality, 51(3), 337–351. Portico. https://doi.org/10.1002/jeq2.20342
The joint effects of information and financing constraints on technology adoption: Evidence from a field experiment in rural Tanzania
Journal of Development Economics / Mar 01, 2022
Harou, A. P., Madajewicz, M., Michelson, H., Palm, C. A., Amuri, N., Magomba, C., Semoka, J. M., Tschirhart, K., & Weil, R. (2022). The joint effects of information and financing constraints on technology adoption: Evidence from a field experiment in rural Tanzania. Journal of Development Economics, 155, 102707. https://doi.org/10.1016/j.jdeveco.2021.102707
Sulfur fertility management to enhance methionine and cysteine in soybeans
Journal of the Science of Food and Agriculture / May 19, 2021
Rushovich, D., & Weil, R. (2021). Sulfur fertility management to enhance methionine and cysteine in soybeans. Journal of the Science of Food and Agriculture, 101(15), 6595–6601. Portico. https://doi.org/10.1002/jsfa.11307
Can permanganate oxidizable carbon predict soil function responses to soil organic matter management?
Soil Science Society of America Journal / Aug 09, 2021
Lucas, S., & Weil, R. (2021). Can permanganate oxidizable carbon predict soil function responses to soil organic matter management? Soil Science Society of America Journal, 85(5), 1768–1784. Portico. https://doi.org/10.1002/saj2.20282
Assessing and understanding non-responsiveness of maize and soybean to fertilizer applications in African smallholder farms
Agriculture, Ecosystems & Environment / Jan 01, 2021
Roobroeck, D., Palm, C. A., Nziguheba, G., Weil, R., & Vanlauwe, B. (2021). Assessing and understanding non-responsiveness of maize and soybean to fertilizer applications in African smallholder farms. Agriculture, Ecosystems & Environment, 305, 107165. https://doi.org/10.1016/j.agee.2020.107165
Scavenging and recycling deep soil nitrogen using cover crops on mid-Atlantic, USA farms
Agriculture, Ecosystems & Environment / Apr 01, 2021
Hirsh, S. M., Duiker, S. W., Graybill, J., Nichols, K., & Weil, R. R. (2021). Scavenging and recycling deep soil nitrogen using cover crops on mid-Atlantic, USA farms. Agriculture, Ecosystems & Environment, 309, 107274. https://doi.org/10.1016/j.agee.2020.107274
Deep Soil Cores Reveal Large End‐of‐Season Residual Mineral Nitrogen Pool
Agricultural & Environmental Letters / Jan 01, 2019
Hirsh, S. M., & Weil, R. R. (2019). Deep Soil Cores Reveal Large End‐of‐Season Residual Mineral Nitrogen Pool. Agricultural & Environmental Letters, 4(1), 180055. Portico. https://doi.org/10.2134/ael2018.10.0055
Subsequent nitrogen utilisation and soil water distribution as affected by forage radish cover crop and nitrogen fertiliser in a corn silage production system
Acta Agriculturae Scandinavica, Section B — Soil & Plant Science / Jul 20, 2018
Wang, F., Weil, R. R., Han, L., Zhang, M., Sun, Z., & Nan, X. (2018). Subsequent nitrogen utilisation and soil water distribution as affected by forage radish cover crop and nitrogen fertiliser in a corn silage production system. Acta Agriculturae Scandinavica, Section B — Soil & Plant Science, 69(1), 52–61. https://doi.org/10.1080/09064710.2018.1498911
Can conservation tillage reduce N2O emissions on cropland transitioning to organic vegetable production?
Science of The Total Environment / Mar 01, 2018
Chen, G., Kolb, L., Cavigelli, M. A., Weil, R. R., & Hooks, C. R. R. (2018). Can conservation tillage reduce N2O emissions on cropland transitioning to organic vegetable production? Science of The Total Environment, 618, 927–940. https://doi.org/10.1016/j.scitotenv.2017.08.296
Inorganic nitrogen losses to groundwater are minimal from two management-intensive grazing dairy farms in Maryland
Renewable Agriculture and Food Systems / Apr 03, 2017
Gilker, R. E., & Weil, R. R. (2017). Inorganic nitrogen losses to groundwater are minimal from two management-intensive grazing dairy farms in Maryland. Renewable Agriculture and Food Systems, 33(4), 347–359. https://doi.org/10.1017/s1742170517000114
Total and permanganate-oxidizable organic carbon in the corn rooting zone of US Coastal Plain soils as affected by forage radish cover crops and N fertilizer
Soil and Tillage Research / Jan 01, 2017
Wang, F., Weil, R. R., & Nan, X. (2017). Total and permanganate-oxidizable organic carbon in the corn rooting zone of US Coastal Plain soils as affected by forage radish cover crops and N fertilizer. Soil and Tillage Research, 165, 247–257. https://doi.org/10.1016/j.still.2016.08.022
Anaerobic co-digestion of forage radish and dairy manure in complete mix digesters
Bioresource Technology / Feb 01, 2015
Belle, A. J., Lansing, S., Mulbry, W., & Weil, R. R. (2015). Anaerobic co-digestion of forage radish and dairy manure in complete mix digesters. Bioresource Technology, 178, 230–237. https://doi.org/10.1016/j.biortech.2014.09.036
Biomass and Nitrogen Content of Hairy Vetch–Cereal Rye Cover Crop Mixtures as Influenced by Species Proportions
Agronomy Journal / Nov 01, 2015
Poffenbarger, H. J., Mirsky, S. B., Weil, R. R., Maul, J. E., Kramer, M., Spargo, J. T., & Cavigelli, M. A. (2015). Biomass and Nitrogen Content of Hairy Vetch–Cereal Rye Cover Crop Mixtures as Influenced by Species Proportions. Agronomy Journal, 107(6), 2069–2082. Portico. https://doi.org/10.2134/agronj14.0462
Cover Crop and Poultry Litter Management Influence Spatiotemporal Availability of Topsoil Nitrogen
Soil Science Society of America Journal / Nov 01, 2015
Poffenbarger, H. J., Mirsky, S. B., Kramer, M., Weil, R. R., Meisinger, J. J., Cavigelli, M. A., & Spargo, J. T. (2015). Cover Crop and Poultry Litter Management Influence Spatiotemporal Availability of Topsoil Nitrogen. Soil Science Society of America Journal, 79(6), 1660–1673. Portico. https://doi.org/10.2136/sssaj2015.03.0134
Legume Proportion, Poultry Litter, and Tillage Effects on Cover Crop Decomposition
Agronomy Journal / Nov 01, 2015
Poffenbarger, H. J., Mirsky, S. B., Weil, R. R., Kramer, M., Spargo, J. T., & Cavigelli, M. A. (2015). Legume Proportion, Poultry Litter, and Tillage Effects on Cover Crop Decomposition. Agronomy Journal, 107(6), 2083–2096. Portico. https://doi.org/10.2134/agronj15.0065
Methane and hydrogen sulfide production during co-digestion of forage radish and dairy manure
Biomass and Bioenergy / Sep 01, 2015
Belle, A. J., Lansing, S., Mulbry, W., & Weil, R. R. (2015). Methane and hydrogen sulfide production during co-digestion of forage radish and dairy manure. Biomass and Bioenergy, 80, 44–51. https://doi.org/10.1016/j.biombioe.2015.04.029
No-till seeded spinach after winterkilled cover crops in an organic production system
Renewable Agriculture and Food Systems / Sep 03, 2014
Lounsbury, N. P., & Weil, R. R. (2014). No-till seeded spinach after winterkilled cover crops in an organic production system. Renewable Agriculture and Food Systems, 30(5), 473–485. https://doi.org/10.1017/s1742170514000301
The State of Soil Degradation in Sub-Saharan Africa: Baselines, Trajectories, and Solutions
Sustainability / May 26, 2015
Tully, K., Sullivan, C., Weil, R., & Sanchez, P. (2015). The State of Soil Degradation in Sub-Saharan Africa: Baselines, Trajectories, and Solutions. Sustainability, 7(6), 6523–6552. https://doi.org/10.3390/su7066523
Effects of compaction and cover crops on soil least limiting water range and air permeability
Soil and Tillage Research / Mar 01, 2014
Chen, G., Weil, R. R., & Hill, R. L. (2014). Effects of compaction and cover crops on soil least limiting water range and air permeability. Soil and Tillage Research, 136, 61–69. https://doi.org/10.1016/j.still.2013.09.004
Ion-Selective Electrode Offers Accurate, Inexpensive Method for Analyzing Soil Solution Nitrate in Remote Regions
Communications in Soil Science and Plant Analysis / Jul 21, 2014
Tully, K. L., & Weil, R. (2014). Ion-Selective Electrode Offers Accurate, Inexpensive Method for Analyzing Soil Solution Nitrate in Remote Regions. Communications in Soil Science and Plant Analysis, 45(14), 1974–1980. https://doi.org/10.1080/00103624.2014.912297
Organic Amendments to a Wheat Crop Alter Soil Aggregation and Labile Carbon on the Loess Plateau, China
Soil Science / Mar 01, 2014
Wang, F., Tong, Y., Gao, P., Zhang, J., Weil, R. R., & Coffie, J. N. (2014). Organic Amendments to a Wheat Crop Alter Soil Aggregation and Labile Carbon on the Loess Plateau, China. Soil Science, 179(3), 166–173. https://doi.org/10.1097/ss.0000000000000049
Nutrient Availability and Soil Organic Matter Decomposition Response to Prescribed Burns in Mid-Atlantic Brackish Tidal Marshes
Soil Science Society of America Journal / Sep 01, 2013
Geatz, G. W., Needelman, B. A., Weil, R. R., & Megonigal, J. P. (2013). Nutrient Availability and Soil Organic Matter Decomposition Response to Prescribed Burns in Mid-Atlantic Brackish Tidal Marshes. Soil Science Society of America Journal, 77(5), 1852–1864. Portico. https://doi.org/10.2136/sssaj2012.0272
Can a Labile Carbon Test be Used to Predict Crop Responses to Improve Soil Organic Matter Management?
Agronomy Journal / Jul 01, 2012
Lucas, S. T., & Weil, R. R. (2012). Can a Labile Carbon Test be Used to Predict Crop Responses to Improve Soil Organic Matter Management? Agronomy Journal, 104(4), 1160–1170. Portico. https://doi.org/10.2134/agronj2011.0415
Canopy disturbance alters competitive outcomes between two brackish marsh plant species
Aquatic Botany / Oct 01, 2012
Bickford, W. A., Baldwin, A. H., Needelman, B. A., & Weil, R. R. (2012). Canopy disturbance alters competitive outcomes between two brackish marsh plant species. Aquatic Botany, 103, 23–29. https://doi.org/10.1016/j.aquabot.2012.05.006
The Mechanism for Weed Suppression by a Forage Radish Cover Crop
Agronomy Journal / Mar 01, 2012
Lawley, Y. E., Teasdale, J. R., & Weil, R. R. (2012). The Mechanism for Weed Suppression by a Forage Radish Cover Crop. Agronomy Journal, 104(2), 205–214. Portico. https://doi.org/10.2134/agronj2011.0128
Vegetation Response to Prescribed Fire in Mid-Atlantic Brackish Marshes
Estuaries and Coasts / Aug 03, 2012
Bickford, W. A., Needelman, B. A., Weil, R. R., & Baldwin, A. H. (2012). Vegetation Response to Prescribed Fire in Mid-Atlantic Brackish Marshes. Estuaries and Coasts, 35(6), 1432–1442. https://doi.org/10.1007/s12237-012-9538-3
Forage Radish Cover Crop Suppresses Winter Annual Weeds in Fall and Before Corn Planting
Agronomy Journal / Jan 01, 2011
Lawley, Y. E., Weil, R. R., & Teasdale, J. R. (2011). Forage Radish Cover Crop Suppresses Winter Annual Weeds in Fall and Before Corn Planting. Agronomy Journal, 103(1), 137–144. Portico. https://doi.org/10.2134/agronj2010.0187
Forage Radish Cover Crops Increase Soil Test Phosphorus Surrounding Radish Taproot Holes
Soil Science Society of America Journal / Jan 01, 2011
White, C. M., & Weil, R. R. (2011). Forage Radish Cover Crops Increase Soil Test Phosphorus Surrounding Radish Taproot Holes. Soil Science Society of America Journal, 75(1), 121–130. Portico. https://doi.org/10.2136/sssaj2010.0095
Root growth and yield of maize as affected by soil compaction and cover crops
Soil and Tillage Research / Dec 01, 2011
Chen, G., & Weil, R. R. (2011). Root growth and yield of maize as affected by soil compaction and cover crops. Soil and Tillage Research, 117, 17–27. https://doi.org/10.1016/j.still.2011.08.001
Brassicaceous and rye cover crops altered free-living soil nematode community composition
Applied Soil Ecology / May 01, 2010
Gruver, L. S., Weil, R. R., Zasada, I. A., Sardanelli, S., & Momen, B. (2010). Brassicaceous and rye cover crops altered free-living soil nematode community composition. Applied Soil Ecology, 45(1), 1–12. https://doi.org/10.1016/j.apsoil.2009.11.007
Forage radish and cereal rye cover crop effects on mycorrhizal fungus colonization of maize roots
Plant and Soil / Oct 14, 2009
White, C. M., & Weil, R. R. (2009). Forage radish and cereal rye cover crop effects on mycorrhizal fungus colonization of maize roots. Plant and Soil, 328(1–2), 507–521. https://doi.org/10.1007/s11104-009-0131-x
Penetration of cover crop roots through compacted soils
Plant and Soil / Nov 19, 2009
Chen, G., & Weil, R. R. (2009). Penetration of cover crop roots through compacted soils. Plant and Soil, 331(1–2), 31–43. https://doi.org/10.1007/s11104-009-0223-7
Brassica Cover Crops for Nitrogen Retention in the Mid‐Atlantic Coastal Plain
Journal of Environmental Quality / Mar 01, 2009
Dean, J. E., & Weil, R. R. (2009). Brassica Cover Crops for Nitrogen Retention in the Mid‐Atlantic Coastal Plain. Journal of Environmental Quality, 38(2), 520–528. Portico. https://doi.org/10.2134/jeq2008.0066
Carbon distribution in restored and reference marshes at Blackwater National Wildlife Refuge
Archives of Agronomy and Soil Science / Jun 01, 2008
Wills, S. A., Needelman, B. A., & Weil, R. R. (2008). Carbon distribution in restored and reference marshes at Blackwater National Wildlife Refuge. Archives of Agronomy and Soil Science, 54(3), 239–248. https://doi.org/10.1080/03650340701793587
Farmer perceptions of soil quality and their relationship to management-sensitive soil parameters
Renewable Agriculture and Food Systems / Dec 01, 2007
Gruver, J. B., & Weil, R. R. (2007). Farmer perceptions of soil quality and their relationship to management-sensitive soil parameters. Renewable Agriculture and Food Systems, 22(4), 271–281. https://doi.org/10.1017/s1742170507001834
Thinking across and beyond disciplines to make cover crops pay
Journal of the Science of Food and Agriculture / Jan 01, 2007
Weil, R., & Kremen, A. (2007). Thinking across and beyond disciplines to make cover crops pay. Journal of the Science of Food and Agriculture, 87(4), 551–557. https://doi.org/10.1002/jsfa.2742
Effects of fertilizer placement on solute leaching under ridge tillage and no tillage
Soil and Tillage Research / Nov 01, 2006
Waddell, J. T., & Weil, R. R. (2006). Effects of fertilizer placement on solute leaching under ridge tillage and no tillage. Soil and Tillage Research, 90(1–2), 194–204. https://doi.org/10.1016/j.still.2005.09.002
Preserving soil and crop resources by increasing cropping intensity and decreasing tillage
Renewable Agriculture and Food Systems / Mar 01, 2006
Wienhold, B. J., & Weil, R. R. (2006). Preserving soil and crop resources by increasing cropping intensity and decreasing tillage. Renewable Agriculture and Food Systems, 21(1), 1–2. https://doi.org/10.1079/raf2005120
Crop Cover Root Channels May Alleviate Soil Compaction Effects on Soybean Crop
Soil Science Society of America Journal / Jul 01, 2004
Williams, S. M., & Weil, R. R. (2004). Crop Cover Root Channels May Alleviate Soil Compaction Effects on Soybean Crop. Soil Science Society of America Journal, 68(4), 1403–1409. Portico. https://doi.org/10.2136/sssaj2004.1403
Comments on “Evaluation of the Microwave Irradiation Method for Measuring Soil Microbial Biomass”
Soil Science Society of America Journal / Mar 01, 2003
Weil, R. R., & Islam, K. R. (2003). Comments on “Evaluation of the Microwave Irradiation Method for Measuring Soil Microbial Biomass.” Soil Science Society of America Journal, 67(2), 674–675. Portico. https://doi.org/10.2136/sssaj2003.6740
Dairy Manure Effects on Soil Quality Properties and Carbon Sequestration in Alfalfa–Orchardgrass Systems
Communications in Soil Science and Plant Analysis / Apr 01, 2003
Min, D. H., Islam, K. R., Vough, L. R., & Weil, R. R. (2003). Dairy Manure Effects on Soil Quality Properties and Carbon Sequestration in Alfalfa–Orchardgrass Systems. Communications in Soil Science and Plant Analysis, 34(5–6), 781–799. https://doi.org/10.1081/css-120018975
Estimating active carbon for soil quality assessment: A simplified method for laboratory and field use
American Journal of Alternative Agriculture / Mar 01, 2003
Islam, K. R., Stine, M. A., Gruver, J. B., Samson-Liebig, S. E., & Weil, R. R. (2003). Estimating active carbon for soil quality assessment: A simplified method for laboratory and field use. American Journal of Alternative Agriculture, 18(1), 3–17. https://doi.org/10.1079/ajaa2003003
Eastern Gamagrass Root Penetration in Adverse Subsoil Conditions
Soil Science Society of America Journal / May 01, 2002
Gilker, R. E., Weil, R. R., Krizek, D. T., & Momen, B. (2002). Eastern Gamagrass Root Penetration in Adverse Subsoil Conditions. Soil Science Society of America Journal, 66(3), 931–938. Portico. https://doi.org/10.2136/sssaj2002.9310
Land use effects on soil quality in a tropical forest ecosystem of Bangladesh
Agriculture, Ecosystems & Environment / Jun 01, 2000
Islam, K. R., & Weil, R. R. (2000). Land use effects on soil quality in a tropical forest ecosystem of Bangladesh. Agriculture, Ecosystems & Environment, 79(1), 9–16. https://doi.org/10.1016/s0167-8809(99)00145-0
Soil and Plant Influences on Crop Response to Two African Phosphate Rocks
Agronomy Journal / Nov 01, 2000
Weil, R. R. (2000). Soil and Plant Influences on Crop Response to Two African Phosphate Rocks. Agronomy Journal, 92(6), 1167–1175. Portico. https://doi.org/10.2134/agronj2000.9261167x
Sulfur Nutrition of Maize in Four Regions of Malawi
Agronomy Journal / Jul 01, 2000
Weil, R. R., & Mughogho, S. K. (2000). Sulfur Nutrition of Maize in Four Regions of Malawi. Agronomy Journal, 92(4), 649–656. Portico. https://doi.org/10.2134/agronj2000.924649x
A rapid microwave digestion method for colorimetric measurement of soil organic carbon
Communications in Soil Science and Plant Analysis / Sep 01, 1998
Islam, K. R., & Weil, R. R. (1998). A rapid microwave digestion method for colorimetric measurement of soil organic carbon. Communications in Soil Science and Plant Analysis, 29(15–16), 2269–2284. https://doi.org/10.1080/00103629809370110
Microwave irradiation of soil for routine measurement of microbial biomass carbon
Biology and Fertility of Soils / Sep 18, 1998
Islam, K. R., & Weil, R. R. (1998). Microwave irradiation of soil for routine measurement of microbial biomass carbon. Biology and Fertility of Soils, 27(4), 408–416. https://doi.org/10.1007/s003740050451
Seasonal trends in soil nitrogen from injected or surface‐incorporated sewage sludge applied to corn
Communications in Soil Science and Plant Analysis / Jan 01, 1998
Cartron, J. M., & Weil, R. R. (1998). Seasonal trends in soil nitrogen from injected or surface‐incorporated sewage sludge applied to corn. Communications in Soil Science and Plant Analysis, 29(1–2), 121–139. https://doi.org/10.1080/00103629809369933
Freeze-dried soil extraction method for the measurement of microbial biomass C
Biology and Fertility of Soils / Feb 17, 1997
Islam, K. R., Weil, R. R., Mulchi, C. L., & Glenn, S. D. (1997). Freeze-dried soil extraction method for the measurement of microbial biomass C. Biology and Fertility of Soils, 24(2), 205–210. https://doi.org/10.1007/s003740050232
Influence of Soil Moisture Regimes on Subsequent Soil Manganese Availability and Toxicity in Two Cotton Genotypes
Agronomy Journal / Jan 01, 1997
Weil, R. R., Foy, C. D., & Coradetti, C. A. (1997). Influence of Soil Moisture Regimes on Subsequent Soil Manganese Availability and Toxicity in Two Cotton Genotypes. Agronomy Journal, 89(1), 1–8. Portico. https://doi.org/10.2134/agronj1997.00021962008900010001x
Water Distribution in Soil under Ridge‐Till and No‐Till Corn
Soil Science Society of America Journal / Jan 01, 1996
Waddell, J. T., & Weil, R. R. (1996). Water Distribution in Soil under Ridge‐Till and No‐Till Corn. Soil Science Society of America Journal, 60(1), 230–237. Portico. https://doi.org/10.2136/sssaj1996.03615995006000010035x
Pyrite Enhancement of Phosphorus Availability from African Phosphate Rocks: A Laboratory Study
Soil Science Society of America Journal / Nov 01, 1995
Lowell, K., & Weil, R. R. (1995). Pyrite Enhancement of Phosphorus Availability from African Phosphate Rocks: A Laboratory Study. Soil Science Society of America Journal, 59(6), 1645–1654. Portico. https://doi.org/10.2136/sssaj1995.03615995005900060020x
Effects of intensity of agronomic practices on a soil ecosystem
American Journal of Alternative Agriculture / Mar 01, 1993
Weil, R. R., Lowell, K. A., & Shade, H. M. (1993). Effects of intensity of agronomic practices on a soil ecosystem. American Journal of Alternative Agriculture, 8(1), 5–14. https://doi.org/10.1017/s0889189300004859
Nitrate Leaching to a Shallow Mid-Atlantic Coastal Plain Aquifer as Influenced by Conventional No-Till and Low-Input Sustainable Grain Production Systems
Water Science and Technology / Aug 01, 1993
Craig, J. P., & Weil, R. R. (1993). Nitrate Leaching to a Shallow Mid-Atlantic Coastal Plain Aquifer as Influenced by Conventional No-Till and Low-Input Sustainable Grain Production Systems. Water Science and Technology, 28(3–5), 691–700. https://doi.org/10.2166/wst.1993.0475
Dry Matter and Nitrogen Accumulation and Partitioning in Field Grown Winged Bean
Experimental Agriculture / Jul 01, 1991
Weil, R. R., & Belmont, G. S. (1991). Dry Matter and Nitrogen Accumulation and Partitioning in Field Grown Winged Bean. Experimental Agriculture, 27(3), 323–328. https://doi.org/10.1017/s0014479700019049
Effects of Winged Bean on a Following Maize Crop
Experimental Agriculture / Jul 01, 1991
Weil, R. R., & Samaranayake, A. (1991). Effects of Winged Bean on a Following Maize Crop. Experimental Agriculture, 27(3), 329–338. https://doi.org/10.1017/s0014479700019050
Nitrate Contamination of Groundwater under Irrigated Coastal Plain Soils
Journal of Environmental Quality / Jul 01, 1990
Weil, R. R., Weismiller, R. A., & Turner, R. S. (1990). Nitrate Contamination of Groundwater under Irrigated Coastal Plain Soils. Journal of Environmental Quality, 19(3), 441–448. Portico. https://doi.org/10.2134/jeq1990.00472425001900030015x
Nitrogen Status of Forest Floor, Soils, and Vegetation following Municipal Wastewater Sludge Application
Journal of Environmental Quality / Oct 01, 1990
Aschmann, S. G., McIntosh, M. S., Angle, J. S., Hill, R. L., & Weil, R. R. (1990). Nitrogen Status of Forest Floor, Soils, and Vegetation following Municipal Wastewater Sludge Application. Journal of Environmental Quality, 19(4), 687–694. Portico. https://doi.org/10.2134/jeq1990.00472425001900040010x
Effect of submergence on availability of certain plant nutrients in three Ultisol catenas
Plant and Soil / Feb 01, 1989
Weil, R. R., & Holah, Sh. Sh. (1989). Effect of submergence on availability of certain plant nutrients in three Ultisol catenas. Plant and Soil, 114(2), 147–157. https://doi.org/10.1007/bf02220793
Phosphorus Renovation of Wastewater by Overland Flow Land Application
Journal of Environmental Quality / Oct 01, 1987
Payer, F. S., & Weil, R. R. (1987). Phosphorus Renovation of Wastewater by Overland Flow Land Application. Journal of Environmental Quality, 16(4), 391–397. Portico. https://doi.org/10.2134/jeq1987.00472425001600040017x
Plant Availability of Phosphorus in Sewage Sludge Compost
Journal of Environmental Quality / Oct 01, 1986
McCoy, J. L., Sikora, L. J., & Weil, R. R. (1986). Plant Availability of Phosphorus in Sewage Sludge Compost. Journal of Environmental Quality, 15(4), 403–409. Portico. https://doi.org/10.2134/jeq1986.00472425001500040016x
Effects of manuring on the arthropod community in an arable soil
Soil Biology and Biochemistry / Jan 01, 1979
Weil, R. R., & Kroontje, W. (1979). Effects of manuring on the arthropod community in an arable soil. Soil Biology and Biochemistry, 11(6), 669–679. https://doi.org/10.1016/0038-0717(79)90037-3
Inorganic Nitrogen and Soluble Salts in a Davidson Clay Loam used for Poultry Manure Disposal
Journal of Environmental Quality / Jan 01, 1979
Weil, R. R., Kroontje, W., & Jones, G. D. (1979). Inorganic Nitrogen and Soluble Salts in a Davidson Clay Loam used for Poultry Manure Disposal. Journal of Environmental Quality, 8(1), 86–91. Portico. https://doi.org/10.2134/jeq1979.00472425000800010019x
Organic Matter Decomposition in a Soil Heavily Amended with Poultry Manure
Journal of Environmental Quality / Oct 01, 1979
Weil, R. R., & Kroontje, W. (1979). Organic Matter Decomposition in a Soil Heavily Amended with Poultry Manure. Journal of Environmental Quality, 8(4), 584–588. Portico. https://doi.org/10.2134/jeq1979.00472425000800040029x
Physical Condition of a Davidson Clay Loam after Five Years of Heavy Poultry Manure Applications
Journal of Environmental Quality / Jul 01, 1979
Weil, R. R., & Kroontje, W. (1979). Physical Condition of a Davidson Clay Loam after Five Years of Heavy Poultry Manure Applications. Journal of Environmental Quality, 8(3), 387–392. Portico. https://doi.org/10.2134/jeq1979.00472425000800030024x
Education
Virginia Tech
Experience
University of Maryland
Professor / August, 1979 — Present
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