Dr. Dexter B. Watts
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Dr. Dexter B. Watts

Research Scientist
USDA-ARS National Soil Dynamics Laboratory, United States of America

Highest Degree
Ph.D. in Soil Science from USDA-ARS National Soil Dynamics Laboratory, United States of America

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Area of Interest:

Plant and Soil Sciences
100%
Soil Sciences
62%
Crop Production
90%
Soil Analysis
75%
Plant Science
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
0
Abstracts
0

Selected Publications

  1. Lin, Y., D.B. Watts, H.A. Torbert and J.A. Howe, 2019. Double-Crop wheat and soybean yield response to poultry litter application. Crop Forage Turfgr. Manage., Vol 5. 10.2134/cftm2018.10.0082.
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  2. Torbert, H.A., D.B. Watts and R.L. Chaney, 2018. Impact of FGD gypsum and**manure application on transfer of potentially toxic elements to plants. Soil, Run., 47: 865-872.
  3. Paul, C.J., C.W. Robinson, J.R. Kessler, D.E. Wells, J.L. Sibley, H.A. Torbert and D.B. Watts, 2018. Evaluation of flue-gas desulfurization gypsum in poultry litter as a substrate component for greenhouse horticultural crops. Agric. Res. Technol. Open Access J., Vol 13. 10.19080/ARTOAJ.2018.13.555886.
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  4. Kost, D., K.J. Ladwig, L. Chen, T.M. DeSutter and L. Espinoza et al., 2018. Gypsum effects on crop yield and chemistry of soils, plant tissues, and vadose water: a meta-analysis of results from seven sites in the United states. J. Environ. Q., 47: 1284-1292.
  5. He, Z., I.A. Tazisong, D.B. Watts, Z. Senwo and H.A. Torbert, 2018. Soil properties and elemental composition of an alabama ultisol impacted by long-term crop rotation, tillage and poultry litter application. Pedosphere, 29: 180-194.
  6. Batte, M.T., W.A. Dick, N.R. Fausey, D.C. Flanagan, J.M. Gonzalez et al., 2018. Cover crops and gypsum application: Soybean yield and profitability impacts. J. Am. Society Farm Manage. Rural Apprai., 2018: 43-67.
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  7. Balkcom, K.S., L.M. Duzy, F.J. Arriaga, D.P. Delaney and D.B. Watts, 2018. Fertilizer Management for a rye cover crop to enhance biomass production. Agron. J., 110: 1233-1242.
  8. Watts, D.B., J.B. Hess, S.F. Bilgili, H.A. Torbert, J.L. Sibley and J.D. Davis, 2017. Flue gas desulfurization gypsum: Its effectiveness as an alternative bedding material for broiler production. J. Applied Poult. Res., 26: 50-59.
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  9. Watts, D.B., G.B. Runion and K.S. Balkcom, 2017. Nitrogen fertilizer sources and tillage effects on cotton growth, yield, and fiber quality in a coastal plain soil. Field Crop Res., 201: 184-191.
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  10. Watts, D.B. and H.A. Torbert, 2017. Influence of three application yearly application yearly application of FGD gypsum and poultry litter on surface water runoff. Soil Sci., 182: 18-27.
  11. Wang, J., D.B. Watts, Q. Meng, T.R. Way and Q. Zhang, 2017. Estimating raindrop kinetic energy: Evaluation of a low-cost method. Appl. Eng. Agric., 33: 551-558.
    Direct Link  |  
  12. Torbert, H.A., R.L. Chaney and D.B. Watts, 2017. Potential adherence of flue gas desulfurization gypsum to forage as a consideration for excessive ingestion by ruminants. J. Environ. Quality, 46: 431-435.
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  13. Lin, Y., D.B. Watts, E. vanSanten and G. Cao, 2017. Influence of poultry litter on crop productivity under different field conditions: A meta-analysis. Agron. J., 110: 1233-1242.
  14. Lin, Y., D.B. Watts and T.R. Way, 2017. Poultry litter placement effects on seedling emergence and early growth stage of corn. Eur. Agrophysi. J., 4: 81-99.
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  15. Lin, Y., D.B. Watts and T.R. Way, 2017. Poultry litter placement effects on cotton seedling emergence and early growth. Agron. J., 109: 1678-1686.
    CrossRef  |  Direct Link  |  
  16. Gamble, A.V., J.A. Howe, C.W. Wood, N. DiLorenzo, D.B. Watts and E.V. Santen, 2017. Soil organic carbon storage and greenhouse gas emissions in a grazed perennial forage–crop rotation system. Agrosyst. Geosci. Environ., Vol 2 10.2134/age2018.09.0040.
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  17. Calvo, P., D.B. Watts, J.W. Kloepper and H.A. Torbert, 2017. Effect of microbial‐based inoculants on nutrient concentrations and early root morphology of corn (Zea mays). J. Plant Nutr. Soil Sci., 180: 56-70.
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  18. Watts, D.B. and H.A. Torbert, 2016. Influence of flue gas desulfurization gypsum on reducing soluble phosphorus in successive runoff events from a coastal plain bermudagrass pasture. J. Environ. Qual., 45: 1071-1079.
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  19. Wang, J., D.B. Watts, Q. Meng, Q. Zhang, F. Wu and H.A. Torbert, 2016. Soil water infiltration impacted by maize (Zea mays L.) growth on sloping agricultural land of the loess plateau. J. Soil Water Conserv., 71: 301-309.
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  20. Chapman, K., H.A. Torbert and D. Watts, 2016. Validation of a new method for quantification of ammonia volatilization from agricultural field plots. Eur. Agrophys. J., 3: 76-90.
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  21. Calvo, P., D.B. Watts, J.W. Kloepper and H.A. Torbert, 2016. Effect of microbial-based inoculants on N_2 O emissions from greenhouse corn (Zea mays L.) under different nitrogen fertilizer regimens. Canad. J. Microbiol., 62: 1041-1056.
  22. Calvo, P., D.B. Watts, J.W. Kloepper and H.A. Torbert, 2016. Application of microbial-based inoculants to evaluate the N_2 O production from loamy sand soil under two different ammonium nitrate-based nitrogen fertilizers. Soil Sci., 181: 427-434.
  23. Watts, D.B., T.R. Way, H.A. Torbert and S.D. Armstrong, 2015. Subsurface band application of poultry litter and its influence on phosphorus concentration and retention after runoff from permanent pastures. J. Environ. Quality, 44: 1930-1937.
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  24. Watts, D.B., G.B. Runion, S.K.W. Nannenga and H.A. Torbert, 2015. Impacts of enhanced-efficiency nitrogen fertilizers on greenhouse gas emissions in a coastal plain soil under cotton. J. Environ. Qual., 44: 1699-1710.
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  25. Lamba, J., T.R. Way, P. Srivastava and D.B. Watts, 2015. A method for subsurface-banding poultry litter in plots not accessible with conventional field equipment. Appl. Eng. Agric., 31: 555-558.
    Direct Link  |  
  26. Codling, E.E., J. Lewis and D.B. Watts, 2015. Broiler litter ash and flue gas desulfurization gypsum effects on peanut yield and uptake of nutrients. Commun. Soil Sci. Plant Analy., 46: 2553-2575.
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  27. Watts, D.B., G.B. Runion, S.K.W. Nannenga and H.A. Torbert, 2014. Enhanced-efficiency fertilizer effects on cotton yield and quality in the coastal plains. Agron. J., 106: 745-752.
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  28. Watts, D.B. and W.A. Dick, 2014. Sustainable uses of FGD gypsum in agricultural systems: Introduction. J. Environ. Quality, 43: 246-252.
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  29. Torbert, H.A. and D.B. Watts, 2014. Impact of flue gas desulfurization gypsum application on water quality in a coastal plain soil. J. Environ. Qual., 43: 273-280.
    CrossRef  |  Direct Link  |  
  30. Runion, G.B. and D.B. Watts, 2014. Effects of enhanced efficiency fertilizers on cotton growth characteristics. Crop Manage., Vol 13. 10.2134/CM-2013-0050-RS.
    CrossRef  |  Direct Link  |  
  31. Gamble, A.V., J.A. Howe, C.W. Wood, D.B. Watts and E.Z. V. Santen, 2014. Sod-based rotation effects soil organic carbon storage in coastal plain soils. Soil Sci. Society Am. J., 78: 1997-2008.
  32. Chen, L., D. Kost, Y. Tian, X. Guo, D.B. Watts, D. Norton, R.P. Wolkowski and W.A. Dick, 2014. Effects of gypsum on trace metals in soils and earthworms. J. Environ. Quality, 43: 263-272.
    Direct Link  |  
  33. Way, T.R., D.B. Watts, H. Tewolde, K.R. Sistani and H.A. Torbert, 2013. Implement with adjustable band spacing for subsurface band application of poultry litter. Appl. Eng. Agric., 29: 831-839.
    Direct Link  |  
  34. Calvo, P., D.B. Watts, R.N. Ames, J.W. Kloepper and H.A. Torbert, 2013. Microbial-based inoculants impact nitrous oxide emissions from an incubated soil medium containing urea fertilizers. J. Environ. Quality, 42: 704-712.
    CrossRef  |  Direct Link  |  
  35. Watts, D.B., K.E. Smith and H.A. Torbert, 2012. Impact of poultry litter cake, cleanout, and bedding following chemical amendments on soil c and n mineralization. Int. J. Agron., 10.1155/2012/204629.
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  36. Watts, D.B., F.J. Arriaga, H.A. Torbert, R.R. Busby and D.L. Gebhart, 2012. Noncomposted municipal solid waste byproduct influences soil and plant nutrients 5 years after soil reclamation. Soil sci., 177: 480-489.
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  37. Watts, D.B., F.J. Arriaga, H.A. Torbert, D.L. Gebhart and R.R. Busby, 2012. Ecosystem biomass, carbon, and nitrogen five years after restoration with municipal solid waste. Agron. J., 104: 1305-1311.
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  38. Torbert, H.A. and D.B. Watts, 2012. N mineralization in production agriculture. Int. J. Agron., 10.1155/2012/989365.
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  39. Smith, K.E., D.B. Watts, T.R. Way, H.A. Torbert, S.A. Prior, 2012. Impact of tillage and fertilizer application method on gas emissions in a corn cropping system. Pedosphere, 22: 604-615.
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  40. Nyakatawa, E.Z., D.A. Mays, T.R. Way, D.B. Watts, H.A. Torbert and D.R. Smith, 2012. Soil carbon dioxide fluxes in conventional and conservation tillage corn production systems receiving poultry litter and inorganic fertilizer. J. Sustain. Agric., 36: 873-892.
    CrossRef  |  Direct Link  |  
  41. Cavigelli, M.A., S.J.D. Grosso, M.A. Liebig, C.S. Snyder and P.E. Fixen et al., 2012. US agricultural nitrous oxide emissions: Context, status, and trends. Front. Ecol. Environ., 10: 537-546.
    Direct Link  |  
  42. Way, T.R., D.B. Watts, K.E. Smith and H.A. Torbert, 2011. Calculation of effective gas flux from soil following band application of manure or fertilizer. Trans. ASABE, 54: 337-345.
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  43. Watts, D.B., T.R. Way and H.A. Torbert, 2011. Subsurface application of poultry litter and its influence on nutrient losses in runoff water from permanent pastures. J. Environ. quality., 40: 421-430.
    CrossRef  |  Direct Link  |  
  44. Watts, D.B. and H.A. Torbert, 2011. Long-term tillage and poultry litter impacts on soybean and corn grain yield. Agron. J., 103: 1479-1486.
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  45. Nyakatawa, E.Z, D.A. Mays, T.R. Way, H.A. Torbert, D.R. Smith and D.B. Watts, 2011. Tillage and fertilizer management effects on soil-atmospheric exchanges of methane and nitrous oxide in a corn production system. Appl. Environ. Soil Sci. Artic., 10.1155/2011/475370.
    CrossRef  |  Direct Link  |  
  46. Watts, D.B., H.A. Torbert, Y. Feng and S.A. Prior, 2010. Soil microbial community dynamics as influenced by composted dairy manure, soil properties, and landscape position. Soil Sci., 175: 474-486.
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  47. Watts, D.B., H.A. Torbert, S.A. Prior and G. Huluka, 2010. Long-term tillage and poultry litter impacts soil carbon and nitrogen mineralization and fertility. Soil Sci. Soc. Am. J., 74: 1239-1247.
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  48. Watts, D.B., H.A. Torbert and S.A. Prior, 2010. Soil property and landscape position effects on seasonal nitrogen mineralization of composted dairy manure. Soil sci., 175: 27-35.
    CrossRef  |  Direct Link  |  
  49. Sistani, K.R., C.H. Bolster, T.R. Way, H.A. Tobert, D.H. Pote and D.B. Watts, 2010. Influence of poultry litter application methods on the longevity of nutrient and E. coli in runoff from tall fescue pasture. Water, air, soil pollut., 206: 3-12.
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  50. Watts, D.B. and H.A. Torbert, 2009. Impact of gypsum applied to grass buffer strips on reducing soluble P in surface water runoff. J. Environ. quality, 38: 1511-1517.
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  51. Watts, D.B., H.A. Torbert and S.A. Prior, 2007. Mineralization of nitrogen in soils amended with dairy manure as affected by wetting/drying cycles. Commun. Soil Sci. Plant Analy., 38: 2103-2116.
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