Prof. Gilbert Sigua

United States Department of Agriculture Agricultural Research Service, USA

Email: gilbert.sigua@ars.usda.gov

Qualifications

1990 Ph. D., Louisiana State University, Soil Environmental Chemistry/Management

1983 M.Sc., University of Arkansas, Soil Chemistry/ Biochemistry/Management

1978 B.Sc., Central Luzon State University, Soil Science (Chemistry/Fertility)

Publications (Selected)

1. Sigua, G. C. and S.W. Coleman. Wetland conversion to beef cattle pasture: effect on soil phosphorus. The Florida Cattleman and Livestock Journal. 71(2): 56-60. (Trade Journal). 2006.
2. Sigua, G. C., J.C. Griffin and S.W. Coleman. Stormwater best management practice: conversion of improved pastures to wetland systems. pp. 141-152. In Cannizzaro, P.J. (ed). Proceedings of the thirty second annual conferences on ecosystems restoration and creation. Tampa, FL. p. 168. 2006.
3. Sigua, G. C., J. Albano and S.W. Coleman. Impact of Cattle Congregation Sites on Soil Nutrients and Soil Compaction. Florida Scientist 70. (Supplement 1): 12-18. 2007.
4. Sigua, G. C. Alternative grasses for home lawns: water and fertilizer needs. Hernando County Groundwater Guardian. Brooksville. p. 12. 2007. (Technical Bulletin)
5. Sigua, G. C., S. W. Coleman, and M.J. Williams. Properly managed forage-based cow-calf operations in south central Florida are environmentally friendly. pp. 23-27. In USDA-ARS, STARS Field Day Book. Brooksville, FL. 2007. (Technical Report)
6. Sigua, G. C., S. W. Coleman, and M.J. Williams. Cattle congregation sites do not appear to impact soil nutrients build-up. pp. 29-31. In USDA-ARS, STARS Field Day Book. Brooksville, FL. 2007. (Technical Report)
7. Sigua, G. C., S. W. Coleman, and M.J. Williams. Water quality of selected lakes associated with beef cattle pastures in Central Florida. pp. 33-35. In USDA-ARS, STARS Field Day Book. Brooksville, FL. 2007. (Technical Report)
8. Sigua, G. C. and S. W. Coleman. Using lake dredged material to enhance pasture establishment. pp. 37-41. In USDA-ARS, STARS Field Day Book. Brooksville, FL. 2007. (Technical Report)
9. Sigua, G. C., S. W. Coleman and J. P. Albano. Assessing soil organic carbon sequestration in forage-based cow-calf congregation sites and adjoining pastures.
10. Palhares, J. C., S. Muller, R. M. Mattei, J. D. Kich, and G. C. Sigua. Microbiological Water Quality Assessment of Watershed Associated with Swine Production in Santa Catarina, Brazil.
    http://a-c-s.confex.com/crops/2007am/s11/extra/index.cgi. (username: 34252; password: 336765). 2007. (Electronic Report)
11. Prudente, J. A., G. C. Sigua, M. Kongchum and A. D. Prudente Jr. Improving yield and nutrient uptake potentials of Japonica and Indica rice varieties with nitrogen fertilization.
12. Sigua, G. C., W.H. Hudnall, and J. Prudente. Gypsum-Water Management Interactions on the Survival, Yield, and Protein Content of Selected Species of Marsh Vegetation. pp. 80-90. In S. Vyapari (ed.) Proceedings of the 33^rd Annual Conference on Ecosystem Restoration and Creation. Institute of Florida Studies, Hillsborough Community College, Plant City, Florida. p. 143. 2008. (Peer-reviewed Proceedings).
13. Sigua, G. C. and M.L. Paz-Alberto. Phytoremediation potential of lead-contaminated soil using tropical grasses. Florida Scientist 71. (Supplement 1): 1-6. 2008.
14. Sigua, G. C., S.W. Coleman, and J.P. Albano. Agricultural efficacy of carbonatic lake-dredged materials in enhancing pasture establishment.
15. Sigua, G. C. Sustainable management of nutrients in foraged-based pasture soils: effect on animal congregation sites. p 4. In: 2008 Annual Report, S-1032: Improving the Sustainability of Livestock and Poultry Production in the United States. USDA-CSREES National Facilitation Project Livestock and Poultry. p. 61. 2008. (Technical Report)
16. Sigua, G. C. Assessing the efficacy of dredged materials: pasture establishment and forage productivity. p 5. In: 2008 Annual Report, S-1032: Improving the Sustainability of Livestock and Poultry Production in the United States. USDA-CSREES National Facilitation Project Livestock and Poultry. p. 62. 2008. (Technical Report)
17. Sigua, G. C. Research summary: sustainable management of nutrients in pasture soils, effect on animal congregation sites. Livestock and Poultry Environmental Learning Center.