Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics

Gilbert Sigua
Coastal Plain Soil, Water and Plant Conservation Research
Research Soil Scientist

Phone: (843) 669-5203 ext. 105
Fax: (843) 669-6970

2611 W LUCAS ST
FLORENCE, SC, 29501-1242

Projects
IMPROVING CHEMICAL, PHYSICAL, AND BIOLOGICAL PROPERTIES OF DEGRADED SANDY SOILS FOR ENVIRONMENTALLY SUSTAINABLE PRODUCTION
Appropriated (D)
  Accession Number: 421529
MANAGING WATER AVAILABILITY AND QUALITY TO MAINTAIN OR INCREASE AGRICULTURAL PRODUCTION, CONSERVE NATURAL RESOURCES, AND ENHANCE ENVIRONMENT
Appropriated (D)
  Accession Number: 422493

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Plant macro and micro nutrient dynamics in a biochar-amended wetland muck - (Peer Reviewed Journal) - (13-Nov-14)
Crop yield responses to a hardwood biochar across varied soils and climate conditions - (Abstract Only) - (10-Sep-14)
Increasing biomass of winter wheat using sorghum biochars - (Peer Reviewed Journal) - (09-Sep-14)
Contrasting effects of sorghum biochars and sorghum residues on soil chemical changes of coastal plains ultisols with winter wheat - (Peer Reviewed Journal) - (05-Sep-14)
Assessing groundwater phosphorus in forage-based agroecosystem with cow-calf operation - (Abstract Only) - (20-Jun-14)
Phosphorus dynamics and management in forage-based agroecosystem with cow-calf operation - (Peer Reviewed Journal) - (08-Jun-14)
Carbon mineralization in two ultisols amended with different sources and particle sizes of pyrolyzed biochar - (Peer Reviewed Journal)
Sigua, G.C., Novak, J.M., Watts, D.W., Cantrell, K.B., Shumaker, P.D., Szogi, A.A., Johnson, M.G. 2014. Carbon mineralization in two ultisols amended with different sources and particle sizes of pyrolyzed biochar. Chemosphere. 103:313-321.
Groundwater phosphorus in forage-based landscape with cow-calf operation - (Peer Reviewed Journal)
Sigua, G.C., Chase, C.C. 2014. Groundwater phosphorus in forage-based landscape with cow-calf operation. Environmental Monitoring and Assessment. 186:1317-1326.
Soil-extractable phosphorus and phosphorus saturation threshold in beef cattle pastures as affected by grazing management and forage type - (Peer Reviewed Journal)
Sigua, G.C., Chase, C.C., Albano, J.P. 2013. Soil-extractable phosphorus and phosphorus saturation threshold in beef cattle pastures as affected by grazing management and forage type. Environmental Science and Pollution Research. 21(3):1691-1700.
Phytoremediation of Pb in the sediment of a mangrove ecosystem - (Peer Reviewed Journal)
Paz-Alberto, A.M., Celestino, A.B., Sigua, G.C. 2013. Phytoremediation of Pb in the sediment of a mangrove ecosystem. Journal of Soils and Sediments. 14(1):251-258.
Genetic diversity and geographical distribution of indigenous soybean-nodulating Bradyrhizobia in the United States - (Peer Reviewed Journal)
Shiro, S., Matsuura, S., Saiki, R., Sigua, G.C., Yamamoto, A., Umehara, Y., Hayashi, M., Saeki, Y. 2013. Genetic diversity and geographical distribution of indigenous soybean-nodulating Bradyrhizobia in the United States. Applied and Environmental Microbiology. 79(12):3610-3618.
Nitrogen recovery and agronomic efficiency of forages with nitrogen fertilization under flooded condition - (Peer Reviewed Journal)
Sigua, G.C., Williams, M.M., Chase, C.C., Grabowski, J., Kongchum, M. 2013. Nitrogen recovery and agronomic efficiency of forages with nitrogen fertilization under flooded condition. Agricultural Sciences. 4(3):138-148.
Phytoremediation: A green technology to remove environmental pollutants - (Peer Reviewed Journal)
Paz-Alberto, A.M., Sigua, G.C. 2013. Phytoremediation: A green technology to remove environmental pollutants. American Journal of Climate Change. (2):71-86.
Impacts of mixed farms on water quality of Pinhal River sub-basin, Santa Catarina - (Peer Reviewed Journal) - (12-Sep-12)
Yield and uptake of bahiagrass under flooded environment as affected by nitrogen fertilization - (Peer Reviewed Journal)
Sigua, G.C., Williams, M., Chase, C.C., Albano, J.P., Kongchum, M. 2012. Yield and uptake of bahiagrass under flooded environment as affected by nitrogen fertilization. Agricultural Sciences. 3(4):491-500.
Effect of flooding duration and nitrogen fertilization on yield and protein content of three forage species - (Peer Reviewed Journal)
Sigua, G.C., Williams, M., Grabwoski, J., Chase, C., Kongchum, M. 2012. Effect of flooding duration and nitrogen fertilization on yield and protein content of three forage species. Agronomy Journal. 104:791-798.
Absence of negative environmental effects of increased soil P levels in cattle congregation zones - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W., Chase, C.C., Albano, J. 2012. Absence of negative environmental effects of increased soil P levels in cattle congregation zones. Agronomy for Sustainable Development. 32:693-701.
Evaluation of environmental contract adjustment to pig production in Pinhal River Sub-basin - (Peer Reviewed Journal)
Palhares, J.C., Guidoni, A., Steinmetz, R.L., Mulinari, M., Sigua, G.C. 2012. Evaluation of environmental contract adjustment to pig production in Pinhal River Sub-basin. Ambiente & Aqua – An Interdisciplinary Journal of Applied Science. 6(3):86-97.
Quantifying phosphorus levels in landscapes associated with Bahiagrass-based pastures and beef cattle - (Abstract Only)
Sigua, G.C., Chase, C.C., Jr. 2011. Quantifying phosphorus levels in landscapes associated with Bahiagrass-based pastures and beef cattle [abstract]. ASA, CSSA, and SSSA International Meeting. Paper No. 77-30.
Assessing phytoremediation potentials of selected tropical plants for acrylamide - (Peer Reviewed Journal)
Paz-Alberto, A.M., De Dios, M.J., Alberto, R.T., Sigua, G.C. 2011. Assessing phytoremediation potentials of selected tropical plants for acrylamide. Journal of Soils and Sediments. 11:1190-1198.
Sustainable cow-calf operations and water quality - (Book / Chapter)
Sigua, G.C. 2011. Sustainable cow-calf operations and water quality. In: Lichtfouse, E., Hamelin, M., Navarrete, M. and Debaeke, P., editors. Sustainable Agriculture. Volume 2. New York:Springer. p. 833-856.
Soil organic carbon under pasture management - (Book / Chapter)
Franzluebbers, A.J., Owens, L.B., Sigua, G.C., Cambardella, C.A., Haney, R.L. 2012. Soil organic carbon under pasture management. In: Liebig, M.A., Franzluebbers, A.J., Follett, R.F., editors. Managing Agricultural Greenhouse Gases: Coordinated Agricultural Research through GRACEnet to Address our Changing Climate. Amsterdam, Netherlands: Elsevier. p. 93-110.
Regional distribution of soil phosphorus across congregation-grazing zones of forage-based pastures with cow-calf operations in Florida - (Peer Reviewed Journal)
Sigua, G.C., Myer, R.O., Coleman, S.W., Mackowiak, C., Adjei, M., Chase, C.C., Albano, J.P. 2011. Regional distribution of soil phosphorus across congregation-grazing zones of forage-based pastures with cow-calf operations in Florida. Journal of Environmental Protection. 2(3):408-417.
Regionalized levels of soil phosphorus and phosphorus saturation in beef cattle pastures with and without grazing - (Abstract Only)
Sigua, G.C., Myer, R.O., Mackowiak, C.L., Coleman, S.W., Chase, C.C. 2010. Regionalized levels of soil phosphorus and phosphorus saturation in beef cattle pastures with and without grazing [abstract]. ASA, CSSA, and SSSA International Meeting. Paper No. 51-4.
Recycling biosolids and lake-dredged materials to pasture-based animal agriculture: Alternative nutrient sources for forage productivity and sustainability. - (Book / Chapter)
Sigua, G.C. 2010. Recycling biosolids and lake-dredged materials to pasture-based animal agriculture: Alternative nutrient sources for forage productivity and sustainability. In: Lichtfouse, E., Navarrete, M., Debaeke, P., Souchere, V. and Alberola, C., editors. Sustainable Agriculture. Volume 1. New York:Springer. p. 495-505.
Field sampling and travel report Reprint Icon - (Other)
Sigua, G.C. 2010. Field sampling and travel report. In: Activities document - January/August 2009 Document II - Individual Activities Researchers from USDA-ARS and U.S. Forest Service. EMBRAPA-LABEX, Brazil. p. 28-33.
Changes in Population Occupancy of Bradyrhizobia under Diffrent Temperature Regimes - (Peer Reviewed Journal)
Saeki, Y., Ozumi, S., Yamamoto, A., Yamakawa, T., Sigua, G.C. 2010. Changes in Population Occupancy of Bradyrhizobia under Diffrent Temperature Regimes. Microbes and Environments. 25(4):309-312.
Managing forage-based cow-calf operations in subtropics: Implication to surface and ground water quality - (Proceedings)
Sigua, G.C., Coleman, S.W. 2010. Managing forage-based cow-calf operations in subtropics: Implication to surface and ground water quality. Proceedings of 19th World Congress of Soil Science, August 1-6, 2010, Brisbane, Australia. p. 94-97.
Sustainable cow-calf operations and water quality: A review - (Peer Reviewed Journal)
Sigua, G.C. 2010. Sustainable cow-calf operations and water quality: A review. Agronomy for Sustainable Development. 30(3):631-648.
Managing Forage-Based Cow-Calf Operations in Subtropics: Implication to Surface and Ground Water Quality - (Proceedings) - (28-May-10)
Spatial distribution of soil phosphorus and herbage mass in beef cattle pastures: Effects of slope aspect and slope position - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W., Albano, J.P., Williams, M.J. 2010. Spatial distribution of soil phosphorus and herbage mass in beef cattle pastures: Effects of slope aspect and slope position. Nutrient Cycling in Agroecosystems. 89:59-70.
Managing Cow-Calf Operations: Implication to Nitrogen Level in Surface and Ground Water - (Trade Journal)
Sigua, G.C., Coleman, S.W., Chase, C.C. 2010. Managing cow-calf operations: Implication to nitrogen level in surface and ground water. The Florida Cattleman and Livestock Journal. 74(8):40-44.
Impact of Livestock in the Water Quality of Pinhal River Sub-Basin, Santa Catarina State-Brazil - (Proceedings)
Palhares, J.C., Antonio, G.L., Jalusa, K.D., Ricardo, S.L., Magda, M.R., Jacqueline, K.B., Luciane, C., Gustavo, P., Sigua, G.C. 2010. Impact of livestock in the water quality of Pinhal River Sub-basin, Santa Catarina State-Brazil. 21st Century Watershed Technology: Improving Water Quality and Environment Conference Proceedings, February 21-24, 2010, Universidad EARTH, Costa Rica.
Evaluation of Adjustment Environmental Contract to Pig Production in Pinhal River Sub-Basin - (Proceedings)
Palhares, J.C., Antonio, G.L., Jalusa, K.D., Ricardo, S.L., Magda, M.R., Jacqueline, K.B., Luciane, C., Gustavo, P., Sigua, G.C. 2010. Evaluation of adjustment environmental contract to pig production in Pinhal River Sub-basin. 21st Century Watershed Technology: Improving Water Quality and Environment Conference Proceedings,February 21-24, 2010, Universidad EARTH, Costa Rica.
Spatial Distribution of Soil Carbon in Pastures with Cow-Calf Operation: Effects of Slope Aspect and Slope Position Reprint Icon - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W. 2010. Spatial distribution of soil carbon in pastures with cow-calf operation: Effects of slope aspect and slope position. Journal of Soils and Sediments. 10(2):240-247.
Microbiological quality assessment of watershed associated with animal-based agriculture in Santa Cataroma, Brazil - (Peer Reviewed Journal)
Sigua, G.C., Palhares, J., Kich, J., Mulinari, M., Mattei, R., Klein, J., Muller, S. 2010. Microbiology quality assessment of watershed associated with animal-based agriculture in Santa Catarina, Brazil. Journal of Water Air and Soil Pollution. 210:307-316.
Quantifying phosphorus levels in soils, plants, surface water and shallow groundwater associated with bahiagrass-based pastures - (Peer Reviewed Journal)
Sigua, G.C., Hubbard, R.K., Coleman, S.W. 2009. Quantifying phosphorus levels in soils, plants, surface water and shallow groundwater associated with bahiagrass-based pastures. ESPR-Environmental Science and Pollution Research Journal. 17:210-219.
Long term effect of higher soil penetrometer resistance in cow congregation zone: Implication on soils and forage quality - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W. 2009. Long-term effect of cow congregation zone on soil penetrometer resistance: Implication on soils and forage quality. Agronomy for Sustainable Development Journal. 29:517-523.
Beef Cattle Pasture to Wetland Reconversion: Impact on Soil Organic Carbon and Phosphorus Dynamics Reprint Icon - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W., Albano, J. 2009. Beef cattle pasture to wetland reconversion: Impact on soil organic carbon and phosphorus dynamics. Ecological Engineering. 35: 1231-1236.
Nitrogen in soils, plants, surface water and shallow groundwater in a bahiagrass pasture of southern Florida, USA - (Peer Reviewed Journal)
Sigua, G.C., Hubbard, R.K., Coleman, S.W., Williams, M. 2010. Nitrogen in soils, plants, surface water and shallow groundwater in a bahiagrass pasture of southern Florida, USA. Nutrient Cycling in Agroecosystems. 86(2):175-187.
Changes in Soil Carbon and Phosphorus Associated with Conversion of Beef Cattle Pasture to Wetland - (Trade Journal)
Sigua, G.C., Coleman, S.W. 2009. Changes in soil carbon and phosphorus associated with conversion of beef cattle pasture to wetland. The Florida Cattleman and Livestock Journal.73(6):42-45.
Quantifying soil organic carbon in forage-based cow-calf congregation-grazing zone interface - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W., Albano, J.P. 2009. Quantifying soil organic carbon in forage-based cow-calf congregation-grazing zone interface. Nutrient Cycling in Agroecosystems Journal. 85:215-223.
Improving Yield and Nutrient Uptake Potentials of japonica and indica Rice Varieties with Nitrogen Fertilization - (Peer Reviewed Journal)
Prudente, J.A., Sigua, G.C., Kongchum, M., Prudente, A.D. 2009. Improving yield and nutrient uptake potentials of japonica and indica rice varieties with nitrogen fertilization. World Journal of Agricultural Sciences. 4(3):326-332.
Recycling biosolids and lake-dredged materials to pasture-based animal agriculture: Alternative nutrient sources for forage productivity and sustainability - (Peer Reviewed Journal)
Sigua, G.C. 2008. Recycling biosolids and lake-dredged materials to pasture-based animal agriculture: Alternative nutrient sources for forage productivity and sustainability. Agronomy for Sustainable Development. 29(1):143-160.
Sustainable management of nutrients in foraged-based pasture soils: Effect on animal congregation sites - (Research Technical Update)
Sigua, G.C. 2008. Sustainable management of nutrients in foraged-based pasture soils: Effect on animal congregation sites. In: 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. 4.
Assessing the efficacy of dredged materials: Pasture establishment and forage productivity - (Research Technical Update)
Sigua, G.C. 2008. Assessing the efficacy of dredged materials: Pasture establishment and forage productivity. In: Annual Report S-1032: Improving the Sustainability of Livestock and Poultry Production in the United States. USDA-CSREES National Facilitation Project Livestock and Poultry. 5 pp.
From Wetland to Beef Cattle Pasture then to Wetland and Beyond: Impact on Soil Nutrient Dymamics and Environment - (Abstract Only) - (05-May-08)
Managing beef cattle operations to protect lakes and rivers - (Trade Journal)
Sigua, G.C. 2008. Managing beef cattle operations to protect lakes and rivers. The Florida Cattleman and Livestock Journal. 72(9):86-88.
Kriging analysis of soil properties: Implication to landscape management and productivity improvement - (Peer Reviewed Journal)
Sigua, G.C., Hudnall, W.H. 2008. Kriging analysis of soil properties: Implication to landscape management and productivity improvement. Journal of Soils and Sediments. 8(3):193-202.
Phytoremediation Potential of Lead-Contaminated Soil Using Tropical Grasses - (Abstract Only)
Sigua, G.C., Paz-Alberto, A.M. 2008. Phytoremediation Potential of Lead-Contaminated Soil Using Tropical Grasses [abstract]. Florida Scientist. 71(1): 1-6.
Levels of Nitrogen in Soils, Plants and Shallow Groundwater Beneath Bahiagrass-Based Pastures with Cow-Calf Operations - (Abstract Only)
Sigua, G.C., Hubbard, R.K., Coleman, S.W. 2008. Levels of Nitrogen in Soils, Plants and Shallow Groundwater Beneath Bahiagrass-Based Pastures with Cow-Calf Operations [abstract]. American Society of Agronomy Branch Meeting. Dallas, Texas. February 3-5, 2008. CD-ROM Agronomy/2008.
Assessing Potential Soil Organic Carbon Sequestration in Forage-Based Cow-Calf Congregation Sites and Adjoining Pastures - (Abstract Only) - (04-Nov-07)
Microbiological Water Quality Assessment of Watershed Associated with Swine Production in Santa Catarina, Brazil - (Abstract Only)
Palhares, J., Muller, S., Mattei, R.M., Kich, J.D., Sigua, G.C. 2007. Microbiological Water Quality Assessment of Watershed Associated with Swine Production in Santa Catarina, Brazil [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. http://a-c-s.confex.com/crops/2007am/s11/extra/index.cgi (user name: 34252; password: 336765
Phytoextraction of lead-contaminanted soil using Vetiver grass (Vetiveria Zizanioides L.), Cogongrass (Imperata cylindrica L.) and Caraboagrass (Paspalum conjugatum L.) - (Peer Reviewed Journal)
Paz-Alberto, A.M., Sigua, G.C., Bellrose, G.B., Prudente, J.A. 2007. Phytoextraction of lead-contaminated soil using Vetiver grass (Vetiveria zizaniodes L.), Cogongrass (Imperata cylindrica L.) and Carabaograss (Paspalum conjugatum L.). Environmental Science and Pollution Research. 14(7):505-509.
Phytoremediaton Potentials of Selected Tropical Plants for Ethidium Bromide - (Peer Reviewed Journal)
Uera, R.B., Paz-Alberto, A.M., Sigua, G.C. 2007. Phytoremediaton potentials of selected tropical plants for ethidium bromide. Environmental Science and Pollution Research. 14(7): 498-504.
Alternative grasses for home lawns: Water and fertilizer needs - (Other)
Sigua, G.C. 2007. Alternative grasses for home lawns: Water and fertilizer needs. Hernando County Groundwater Guardian White Paper, Brooksville, Florida. 15 p.
Properly managed forage-based cow-calf operations in south Central Florida are environmentally friendly - (Other)
Sigua, G.C., Coleman, S.W., Williams, M.J. 2007. Properly managed forage-based cow-calf operations in south Central Florida are environmentally friendly. USDA-Agricultural Research Service, STARS Field Day Book, Brooksville, Florida. p. 23-27.
Cattle congregation sites do not appear to impact soil nutrients build-up - (Other)
Sigua, G.C., Coleman, S.W., Williams, M.J. 2007. Cattle congregation sites do not appear to impact soil nutrients build-up. USDA-Agricultural Research Service STARS Field Day Book, Brooksville, Florida. p. 29-31.
Water quality of selected lakes associated with beef cattle pastures in Central Florida - (Other)
Sigua, G.C., Coleman, S.W., Williams, M.J. 2007. Water quality of selected lakes associated with beef cattle pastures in Central Florida. USDA-Agricultural Research Service STARS Field Day Book, Brooksville, Florida. p. 33-35.
Using lake dredged material to enhance pasture establishment - (Other)
Sigua, G.C., Coleman, S.W. 2007. Using lake dredged material to enhance pasture establishment. USDA-Agricultural Research Service STARS Field Day Book, Brooksville, Florida. p. 37-41.
Impact of Cattle Congregation Sites on Soil Nutrients and Soil Compaction. - (Abstract Only)
Sigua, G.C., Albano, J.P., Coleman, S.W. 2007. Impact of Cattle Congregation Sites on Soil Nutrients and Soil Compaction [abstract]. Florida Scientist.70(1):12-18.
Sustainable management of nutrients in forage-based pasture soils: effect of animal congregation sites. - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W. 2007. Sustainable management of nutrients in forage-based pasture soils: effect of animal congregation sites. Journal of Soils and Sediments.6(4):249-253.
Gypsum-Water Management Interactions on the Survival, Yield, and Protein Content of Selected Species of Marsh Vegetation - (Proceedings)
Sigua, G.C., Hudnall, W.H. and Prudente, J. 2008. Gypsum-water management interactions on the survival, yield, and protein content of selected species of marsh vegetation. In Vyapari, S., editor. Proceedings of the 33rd Annual Conference on Ecosystem Restoration and Creation, Institute of Florida Studies, Hillsborough Community College, Plant City, Florida. p. 80-90.
Agricultural Efficancy of Carbonatic Lake-Dredged Materials in Enhancing Pasture Establishment - (Abstract Only)
Sigua, G.C., Coleman, S.W., Albano, J.P. 2006. Agricultural efficancy of carbonatic lake-dredged materials in enhancing pasture establishment. ASA-CSSA-SSSA Annual Meeting Abstracts. ASA-CSSA-SSSA CD 2006.
Soil Profile Distribution of Phosphorus and Other Nutrients Following Wetland Conversion to Beef Cattle Pasture - (Peer Reviewed Journal)
Sigua, G.C., Kang, W., Coleman, S.W. 2006. Soil profile distribution of phosphorus and other nutrients following wetland conversion to beef cattle pasture. Journal of Environmental Quality. 35:2374- 2382.
Wetland Conversion to Beef Cattle Pasture: Effect on Soil Phosphorus - (Trade Journal)
Sigua, G.C., Coleman, S.W. 2006. Wetland conversion to beef cattle pasture: Effect on soil phosphorus. The Florida Cattleman and Livestock Journal. 71(2): 56-60.
From Wetland to Beef Cattle Pasture: Impact on Soil Nutrient Dynamics - (Abstract Only)
Sigua, G.C., Kang, W., Coleman, S.W., Albano, J.P. 2006. From wetland to beef cattle pasture: impact on soil nutrient dynamics. Florida Scientist.69(1):26-28.
Land application of carbonatic lake-dredged materials: Effects on soil quality and forage productivity - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W., Holtkamp, M.L. 2006. Land application of carbonatic lake-dredged materials: Effects on soil quality and forage productivity. Journal of Environmental Quality. 35:1784-1794.
Gypsum-Water Management Interactions on the Survival, Yield, and Protein Content of Selected Species of Marsh Vegetation - (Abstract Only)
Sigua, G.C., Hudnall, W.H., Prudente, J. 2006. Gypsum-water management interactions on the survival, yield, and protein content of selected species of marsh vegetation [abstract]. 33rd Annual Conference on Ecosystems Restoration and Creation Abstract Book. p.10.
Properly Managed Forage-Based Cow-Calf Operations in South Central Florida Are Environmentally Friendly - (Trade Journal)
Sigua, G.C., Coleman, S.W., Williams, M.J. 2006. Properly managed forage-based cow-calf operations in south Central Florida are environmentally friendly. The Florida Cattleman and Livestock Journal. 70(10):44-47.
Levels of lead in urban soils from selected cities in central region of the Philippines - (Peer Reviewed Journal)
Ona, L.F., Alberto, A.P., Prudente, J.A., Sigua, G.C. 2006. Levels of lead in urban soils from selected cities in central region of the Philippines. Environmental Science and Pollution Research. 13(3):177-183.
Phosphorus Management for Forage-Based Cow-Calf Operations in Floria, Usa: Environment and Productivity - (Proceedings)
Sigua, G.C., Coleman, S.W. 2006. Phosphorus management for forage-based cow-calf operations in Floria, USA: Environment and productivity. International Symposium on Phosphorus Dynamics in the Soil Plant Continuum. 3:204-205.
Using Lake Dredged Materials to Enhance Pasture Establishment - (Trade Journal)
Sigua, G.C., Coleman, S.W. 2006. Using lake-dredged materials to enhance pasture establishment. The Florida Cattleman and Livestock Journal. 70(9):58-62.
Levels of Phosphorus in Soils and Trophic State of Lakes Associated with Grazed and Hayed Forage-Based Pasture Systems in Florida - (Abstract Only)
Sigua, G.C., Coleman, S.W., Williams, M.J., Albano, J.P. 2005. Levels of phosphorus in soils and trophic state of lakes associated with grazed and hayed forage-based pasture systems in florida [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. November 6-10, 2005. Salt Lake City, UT. ASA-CSSA-SSSA CD ROM.
Stormwater Best Management Practice: Conversion of Improved Pastures to Wetland Systems - (Proceedings)
Sigua, G.C., Griffin, J.C., Coleman, S.W. 2005. Stormwater best management practice: Conversion of improved pastures to wetland systems. In: Cannizzaro, P.J., editor. Proceedings of the 32nd Annual Conference on Ecosystems Restoration and Creation, October 27-28, 2005, Tampa, Florida. p. 141-152.
Stormwater Best Management Practice: Conversion of Improved Pastures to Wetland Systems - (Abstract Only)
Sigua, G.C., Jim, G., Coleman, S.W. 2005. Stormwater best management practice: conversion of improved pastures to wetland systems [abstract]. 32nd Annual Conference on Ecosystems Restoration and Creation. Tampa, FL. October, 27-28 2005
Long-term effects of grazing and haying on soil nutrient dynamics in forage-based beef cattle operations - (Peer Reviewed Journal)
Sigua, G.C., Williams, M.J., Coleman, S.W. 2006. Long-term effects of grazing and haying on soil nutrient dynamics in forage-based beef cattle operations. Journal of Sustainable Agriculture. 29(3):115-134.
Nitrogen and phosphorus status of soil and trophic state of lakes associated with forage-based beef cattle operations in Florida - (Peer Reviewed Journal)
Sigua, G.C., Williams, M.J., Coleman, S.W., Starks, R. 2006. Nitrogen and phosphorus status of soil and trophic state of lakes associated with forage-based beef cattle operations in Florida. Journal of Environmental Quality. 35:240-252.
Challenges: Soil dynamics and nutrient cycling - (Peer Reviewed Journal)
Sigua, G.C. 2006. Challenges: Soil dynamics and nutrient cycling. Journal of Soils and Sediments. 6(4):192-193.
Assessing impact of forage-based cattle operation on phosphorus and other crop nutrient loads in subtropical beef cattle pastures - (Other)
Sigua, G.C. 2005. Assessing impact of forage-based cattle operation on phosphorus and other crop nutrient loads in subtropical beef cattle pastures. University of Florida Cooperative Extension Service Institute of Food and Agriculture Science 2004 Annual Research Reports.
Assessing Effectiveness of Alum Treatment and Wetland Best Management Practices for Stormwater Management: Quality Assurance Project Plan - (Other)
Sigua, G.C. 2005. Assessing effectiveness of alum treatment and wetland best management practices for stormwater management: Quality assurance project plan. Southwest Florida Water Management District Report. 47 p.
Establishing bahiagrass in subtropical beef cattle pastures with lake-dredged materials - (Peer Reviewed Journal)
Sigua, G.C., Coleman, S.W. 2005. Establishing bahiagrass in subtropical beef cattle pastures with lake-dredged materials. Tropical Agriculture (Trinidad). 82(4):354-359.
Cumulative and residual effects of repeated sewage sludge applications: Forage productivity and soil quality implications in South Florida, USA - (Peer Reviewed Journal)
Sigua, G.C., Adjei, M.B., Rechcigl, J.E. 2005. Cumulative and residual effects of repeated sewage sludge applications: Forage productivity and soil quality implications in South Florida, USA. Environmental Science and Pollution Research. 12(2):80-88.
Simple model for simulation of wet deposition of chloride at a near-coastal site in Florida - (Peer Reviewed Journal)
Sumner, D.M., Sigua, G.C. 2005. Simple model for simulation of wet deposition of chloride at a near-coastal site in Florida. Florida Scientist. 68(4):236-246.
Characterization of pesticide chlordane in estuarine river sediments - (Peer Reviewed Journal)
Ouyang, Y., Ou, L.T., Sigua, G.C. 2005. Characterization of pesticide chlordane in estuarine river sediments. Journal of Environmental Quality. 34:544-551.
Assessing the Levels of Nutrients in Soils and Water Associated with Forage Based Pasture System in Subtropics - (Abstract Only)
Sigua, G.C., Coleman, S.W., Albano, J.P. 2005. Assessing the levels of nutrients in soils and water associated with forage based pasture system in subtropics. Meeting Abstract.Abstracts of the 69th Annual Meeting of the Florida Academy of Sciences. page 6, AGR-22
Cattle Congregation Sites Do Not Appear to Impact Soil Nutrients Build-Up - (Trade Journal)
Sigua, G.C., Coleman, S.W., Williams, M.J. 2005. Cattle congregation sites do not appear to impact soil nutrients build-up. The Florida Cattleman and Livestock Journal. 69(6):76-79.
Beef Cattle Research in West Central Florida - (Abstract Only)
Riley, D.G., Sigua, G.C. 2005. Beef cattle research in west central florida [abstract]. Florida Scientist. p.5. Paper No. AGR10.
Use of Dredged Materials for Pasture Establishment: Forage Productivity and Ecological Implications. - (Proceedings)
Sigua, G.C. 2005. Use of dredged materials for pasture establishment: Forage productivity and ecological implications. In: Cannizzaro, P.J., editor. Proceedings of the 31st Annual Conferences on Ecosystems Restoration and Creation. Tampa, Florida. p.117-128.
Current and future outlook of dredged and sewage sludge materials in agriculture and environment - (Peer Reviewed Journal)
Sigua, G.C. 2005. Current and future outlook of dredged and sewage sludge materials in agriculture and environment. Journal of Soils and Sediments. 5(1):50-52.
Assessing the efficacy of dredged materials from Lake Panasoffkee, Florida: Implication to environment and agriculture. Part 2-Pasture establishment and forage quality - (Peer Reviewed Journal)
Sigua, G.C., Holtkamp, M.L., Coleman, S.W. 2004. Assessing the efficacy of dredged materials from Lake Panasoffkee, Florida: Implication to environment and agriculture. Part 2-Pasture establishment and forage quality. ESPR Environmental Science and Pollution Research. 11(6):394-399.
Assessing the efficacy of dredged materials from Lake Panasoffkee, Florida: Implication to environment and agriculture. Part 1-Soil and environmental quality aspect - (Peer Reviewed Journal)
Sigua, G.C., Holtkamp, M.L., Coleman, S.W. 2004. Assessing the efficacy of dredged materials from Lake Panasoffkee, Florida: Implication to environment and agriculture. Part 1-Soil and environmental quality aspect. ESPR - Environmental Science and Pollution Research. 11(5):321-326.
Wetland Conversion to Beef Cattle Pasture: Impact on Soil Nutrient Dynamics - (Abstract Only)
Sigua, G.C., Kang, W.J., Griffin, J., Coleman, S.W. 2004. Wetland conversion to beef cattle pasture: impact on soil nutrient dynamics. 2004 ASA-CSSA-SSSA Meeting Abstract CD-ROM. November 2004
Lake Dredging and Beyond: Implication to Agruculture and Environment - (Abstract Only)
Sigua, G.C., Holtkamp, M.L., Coleman, S.W. 2004. Lake dredging and beyond: implication to agruculture and environment. NCER Abstract, p.392
Lake-dredged material for beef cattle pasture establishment - (Other)
Sigua, G.C., Holtkamp, M.L., Linton, J.M., Coleman, S.W. 2004. Lake-dredged material for beef cattle pasture establishment. Government Publication/Report. Available: http://www.dl.nwrc.gov/ tampa/ prod search tampa.aspx? prodid=463.
Lake-dredged materials for beef cattle pasture establishment in subtropics - (Other)
Sigua, G.C., Holtkamp, M.L., Linton, J.M., Coleman, S.W. 2004. Lake-dredged materials for beef cattle pasture establishment in subtropics. USGS Digital Library.
Impact of cattle congregation sites on soil nutrients and soil compaction - (Other)
Sigua, G.C. 2004. Impact of cattle congregation sites on soil nutrients and soil compaction. USDA-Agricultural Research Service, STARS Field Day Manual, Brooksville, Florida. p. 10-15.
Lake Dredged Materials for Beef Cattle Pasture Establishment in Subtropics - (Proceedings)
Sigua, G.C., Holtkamp, M.L., Linton, J.M., Coleman, S.W. 2005. Lake-dredged materials for beef cattle pasture establishment in subtropics. Proceedings 4th Tampa Bay Area Scientific Information Symposium. p. 239-244.
Wetland conversion to beef cattle pasture: Changes in soil properties - (Peer Reviewed Journal)
Sigua, G.C., Griffin, J., Kang, W., Coleman, S.W. 2004. Wetland conversion to beef cattle pasture: Changes in soil properties. Journal of Soils and Sediments. 4(1):4-10.
Project 15: McIntosh enhanced stormwater treatment wetland best management practice - (Other)
Griffin, J., Sigua, G.C., Kang, W. 2004. Project 15: McIntosh enhanced stormwater treatment wetland best management practice. Florida Department of Environmental Protection, Section 319 Grant Work Plan. p. 131-150.
Basin Wide Assessment of Nitrogen and Phosphorus Loadings in the Indian River Lagoon, Florida - (Abstract Only)
Sigua, G.C. 2004. Basin wide assessment of nitrogen and phosphorus loadings in the indian river lagoon, florida. Orlando Florida March 12-13,2004 Meeting Abstract. Florida Academy Abstract Book. p. 15.
Levels and changes of soil phosphorus in the subtropical beef cattle pastures - (Peer Reviewed Journal)
Sigua, G.C., Williams, M.J., Coleman, S.W. 2004. Levels and changes of soil phosphorus in the subtropical beef cattle pastures. Communications in Soil Science and Plant Analysis. 35(7&8):975-990.
Residual Assessment of Forage Yield and Soil Chemical Status in Subtropical Beef Cattle Pastures Following Repeated Biosolids Application - (Abstract Only)
Sigua, G.C., Adjei, M.B., Rechcigl, J.E. Residual assessment of forage yield and soil chemical status in subtropical beef cattle pastures following repeated biosolids application. Bay Area Scientific Information Symposium. Lake Buena Vista, FL. Abstract p.81.
Soils and environment of grazed pasture ecosystems in subtropical United States: Trends and research results - (Peer Reviewed Journal)
Sigua, G.C. 2003. Soils and environment of grazed pasture ecosystems in subtropical United States: Trends and research results. Journal of Soils and Sediments. 3(4):258-260.
Lake Dredged Materials for Beef Cattle Pasture Establishment in Subtropics - (Abstract Only)
Sigua, G.C., Holtkamp, M.L., Linton, J.M., Coleman, S.W. 2003. Lake dredged materials for beef cattle pasture establishment in subtropics. Bay Area Scientific Information Symposium.Tampa, Florida
Impact of Grazing and Haying on Soil Nutrients in the Subtropical Beef Cattle Pastures - (Abstract Only)
Sigua, G.C., Williams, M.J., Coleman, S.W. 2003. Impact of grazing and haying on soil nutrients in the subtropical beef cattle pastures. 2003 Soil Science Society of America Journal. Denver, CO.
Land Application of Lake-Dredged Materials for Bahiagrass Establishment in the Subtropical Beef Pasture - (Peer Reviewed Journal)
Sigua, G.C., Holtkamp, M.L., Linton, J.M., Coleman, S.W. 2003. Land application of lake-dredged materials for bahiagrass establishment in the subtropical beef pasture. Journal of Soils and Sediments. 3(2):93-99.
Disposal Alternative of Lake-Dredged Materials for Bahiagrass Establishment in Subtropical Beef Pasture - (Abstract Only)
Sigua, G.C., Holtlcamp, M.L., Linton, J.M., Coleman, S.W. 2003. Disposal alternative of lake-dredged materials for bahiagrass establishment in subtropical beef pasture. American Society of Agronomy Meetings, Mobile AL.
Water Quality of Selected Lakes Associated with Beef Cattle Pastures in Central Florida - (Trade Journal)
Sigua, G.C., Williams, M.J., Coleman, S.W. 2003. Water quality of selected lakes associated with beef cattle pastures in central Florida. Florida Cattleman and Livestock Journal. 64(4):47-49.
Soil Phosphorus Dynamics in Subtropical Beef Cattle Pastures under Different Pasture Management - (Abstract Only)
Sigua, G.C., Williams, M.J., Coleman, S.W. 2002. Soil phosphorus dynamics in subtropical beef cattle pastures under different pasture management. 2002 ASA-CSSA-SSSA Meetings, Indianapolis, IN.
Estimating High-Resolution Atmospheric Deposition of Chloride in Coastal Florida - (Abstract Only)
Sumner, D.M., Sigua, G.C. 2002. Estimating high-resolution atmospheric deposition of chloride in coastal florida. 2002 American Society of Agronomy Meetings, Indianapolis, IN.
Cattle grazing and the environment - (Other)
Sigua, G.C. 2002. Cattle grazing and the environment. USDA-Agricultural Research Service STARS Field Day Manual, Brooksville, Florida. p. 40-42.
Assessing Redesigned Effectiveness of the Water Quality Monitoring Program in the Indian River Lagoon, Florida - (Peer Reviewed Journal)
Sigua, G.C., Tweedale, W.A. 2004. Assessing redesigned effectiveness of the water quality monitoring program in the Indian River Lagoon, Florida. Aquatic Conservation: Marsh Freshwater Ecosystem 14:49-64.
Watershed Scale Assessment of Nitrogen and Phosphorus Loadings in the Indian River Lagoon Basin, Florida - (Peer Reviewed Journal)
Sigua, G.C., Tweedale, W.A. 2003. Watershed scale assessment of nitrogen and phosphorus loadings in the Indian River Lagoon basin, Florida. Journal of Water Resources Planning and Management Vol.67:pp 363-372.
ARS News Articles
Last Modified: 12/22/2014