Browsing by Author "Johnson, Sam"

Now showing 1 - 15 of 15
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    Deep Tillage Prior to No-Till Corn: Research and Recommendations
    Thomason, Wade E.; Grisso, Robert D.; Balderson, T. Keith; Davis, Paul H.; Johnson, Sam; Lawrence, Chris; Lewis, Matthew A.; Moore, David M.; Alley, Marcus M. (Virginia Cooperative Extension, 2019-03-29)
    Compares cultivation of corn by no-till and deep tillage and notes ways to reduce soil compaction, using deep tillage if soil compaction has effected crop growth and yield.
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    Deep Tillage Prior to No-Till Corn: Research and Recommendations
    Thomason, Wade E.; Grisso, Robert D.; Balderson, T. Keith; Davis, Paul H.; Johnson, Sam; Lawrence, Chris; Lewis, Matthew A.; Moore, David M.; Alley, Marcus M. (Virginia Cooperative Extension, 2009)
    Compares cultivation of corn by no-till and deep tillage and notes ways to reduce soil compaction, using deep tillage if soil compaction has effected crop growth and yield.
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    Evaluation of household water quality in Richmond and Westmoreland Counties, Virginia
    Ross, Burton Blake; Tabulenas, T.; Johnson, Sam; Liddington, Kelly J.; Parrott, Kathleen R.; Bourne, Amanda C. (Virginia Cooperative Extension, 1999-04)
    During Spring 1998 in Richmond and Westmoreland Counties, Virginia, programs of household water quality education, which included water sampling, testing, and diagnosis, were conducted. Participation in the water quality programs was made available to any resident of these two counties who utilized a private, individual water supply. During the course of the projects, 135 households submitted water samples which were analyzed for iron, manganese, hardness, sulfate, chloride, fluoride, total dissolved solids, pH, saturation index, copper, sodium, nitrate, and total coliform and E. coli bacteria. These analyses identified the major household water quality problems in these two counties as iron/manganese, corrosivity, and bacteria. Additionally, a number of samples were determined to have concentrations of sodium and nitrate high enough to possibly lead to health complications for at-risk segments of the population. After the completion of the general water testing program, water supplies from 7 households were resampled for the testing of 23 pesticides and other chemical compounds. None of the samples had a concentration of any of these contaminants exceeding EPA Health Advisory of Maximum Contaminant Levels. Furthermore, a total of only four detections were observed, all of which were trifluralin. Following completion of the programs, a survey was mailed to the 135 participants. Forty participants returned survey forms on which they identified their reason( s) for participating in such a program; the primary reason was concern about safety of their water supply. Returned survey forms also provided insight into measures participants had already taken, or planned to take, to improve the quality of their water supply. More than one-half of the households who reported having at least one water quality problem had taken, or planned to take, at least one measure to improve the quality of their water supply. Ten percent or more of all participants had taken, or planned to take, one or more of the following actions: use bottled water for drinking/cooking and shock chlorinate the water system.
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    Tips for Profitable Variety Selection: How to Use Data From Different Types of Variety Trials
    Thomason, Wade E.; Holshouser, David L.; Balderson, T. Keith; Moore, David M.; Bowen, Eric; Chappell, Glenn F.; Clark, Bobby; Davis, Paul H.; Lawrence, Watson; Parrish, Michael J.; Reiter, Scott; Johnson, Sam; Slade, Glenn; Wells, Kelvin; Yancey, Matthew; Burgess, Keith (Virginia Cooperative Extension, 2019-03-29)
    Discusses how to interpret crop variety tests, in terms of variables such as weather, planting date, yield potential in fields, and other data.
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    Tips for Profitable Variety Selection: How to Use Data From Different Types of Variety Trials
    Thomason, Wade E.; Holshouser, David L.; Balderson, T. Keith; Moore, David M.; Bowen, Eric; Chappell, Glenn F.; Clark, Bobby; Davis, Paul H.; Lawrence, Watson; Parrish, Michael J.; Reiter, Scott; Johnson, Sam; Slade, Glenn; Wells, Kelvin; Yancey, Matthew; Burgess, Keith (Virginia Cooperative Extension, 2011)
    Discusses how to interpret crop variety tests, in terms of variables such as weather, planting date, yield potential in fields, and others.
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    Virginia On-Farm Corn Test Plots 2006
    Lewis, Matthew A.; Alexander, Wes; Burgess, Keith; Balderson, T. Keith; Chappell, Glenn F.; Davis, Paul H.; Dustin, Robyn; Henley, Philip; Johnson, Sam; Lawrence, Watson; Moore, David M.; Stafford, Carl; Thomason, Wade E. (Virginia Cooperative Extension, 2009-05-01)
    Discusses performance trials for commercial corn hybrids, including some genetically modified. Important concerns tested include selection of hybrid varieties, use of herbicides, fungicides and insecticides.
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    Virginia On-Farm Corn Test Plots, 2007
    Lewis, Matthew A.; Burgess, Keith; Balderson, T. Keith; Chappell, Glenn F.; Davis, Paul H.; Johnson, Sam; Lawrence, Watson; Moody, Spencer; Moore, David M.; Parrish, Michael J.; Thomason, Wade E.; Townsend, John (Virginia Cooperative Extension, 2008)
    Discusses test data for different cultivars and hybrids of corn, in terms of selection, fertilizer, use of fungicides, drought tolerance, weed removal, nematode control and other concerns.
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    Virginia On-Farm Corn Test Plots, 2008
    Lewis, Matthew A.; Balderson, T. Keith; Chappell, Glenn F.; Davis, Paul H.; Johnson, Sam; Lawrence, Watson; Moore, David M.; O'Berry, Nathan Brook; Parrish, Michael J.; Reiter, Scott; Thomason, Wade E. (Virginia Cooperative Extension, 2008)
    Discusses test data for different cultivars and hybrids of corn, in terms of selection, fertilizer, use of fungicides, drought tolerance, weed removal, nematode control and other concerns.
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    Virginia On-Farm Corn Test Plots, 2009
    Lewis, Matthew A.; Balderson, T. Keith; Bowen, Eric; Burgess, Keith; Chappell, Glenn F.; Clark, Bobby; Davis, Paul H.; Jochum, Eric; Johnson, Sam; Lawrence, Watson; Moore, David M.; Parrish, Michael J.; Reiter, Scott; Slade, Glenn; Wells, Kelvin; Thomason, Wade E. (Virginia Cooperative Extension, 2010)
    Discusses test data for different cultivars and hybrids of corn, in terms of selection, fertilizer, use of fungicides, drought tolerance, weed removal, nematode control and other concerns.
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    Virginia On-Farm Soybean Test Plots, 2006
    Alexander, Wes; Balderson, T. Keith; Chappell, Glenn F.; Davis, Paul H.; Estienne, Cynthia Elizabeth; Johnson, Sam; Lewis, Matthew A.; Lawrence, Watson; Moore, David M.; Parrish, Michael J.; Slade, Glenn; Stafford, Carl; Wells, Kelvin; Lawrence, Chris; Holshouser, David L. (Virginia Cooperative Extension, 2006)
    Discusses data collected from soybean test plots in 2006 including variety selection, fungicides, maturity and development of plants, seed treatments, and tillage systems.
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    Virginia On-Farm Soybean Test Plots, 2007
    Alexander, Wes; Balderson, T. Keith; Chappell, Glenn F.; Davis, Paul H.; Estienne, Cynthia Elizabeth; Johnson, Sam; Lewis, Matthew A.; Lawrence, Watson; Moore, David M.; Parrish, Michael J.; Reiter, Scott; Slade, Glenn; Wells, Kelvin; Holshouser, David L. (Virginia Cooperative Extension, 2007)
    Discusses data collected from soybean test plots in 2007 including variety selection, fungicides, maturity and development of plants, seed treatments, and tillage systems.
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    Virginia On-Farm Soybean Test Plots, 2008
    Alexander, Wes; Balderson, T. Keith; Chappell, Glenn F.; Davis, Paul H.; Estienne, Cynthia Elizabeth; Johnson, Sam; Lewis, Matthew A.; Lawrence, Watson; Moore, David M.; Parrish, Michael J.; Reiter, Scott; Slade, Glenn; Wells, Kelvin; Holshouser, David L. (Virginia Cooperative Extension, 2008)
    Discusses data collected from soybean test plots in 2008 including variety selection, fungicides, maturity and development of plants, seed treatments, and tillage systems.
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    Virginia On-Farm Soybean Test Plots, 2009
    Balderson, T. Keith; Bradshaw, Rose; Chappell, Glenn F.; Clarke, Taylor; Davis, Paul H.; Estienne, Cynthia Elizabeth; Jochum, Eric; Johnson, Sam; Lewis, Matthew A.; Lawrence, Watson; Moore, David M.; Parrish, Michael J.; Reiter, Scott; Saphir, McGann; Holshouser, David L. (Virginia Cooperative Extension, 2010)
    Discusses data collected from soybean test plots in 2009 including variety selection, fungicides, maturity and development of plants, seed treatments, and tillage systems.
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    Virginia Tech On-farm Wheat Test Plots, Eastern Virginia, July 2006
    Balderson, T. Keith; Davis, Paul H.; Moore, David M.; Johnson, Sam; Chappell, Glenn F.; Lawrence, Watson; Alexander, Wes; Thomason, Wade E. (Virginia Cooperative Extension, 2006-07)
    A summary of replicated research on demonstration wheat plots in Eastern Virginia, conducted by Virginia Cooperative Extension in Cooperation with local producers and agribusinesses.
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    Virginia Tech On-farm Wheat Test Plots, Eastern Virginia, July 2007
    Balderson, T. Keith; Davis, Paul H.; Moore, David M.; Johnson, Sam; Chappell, Glenn F.; Lawrence, Watson; Alexander, Wes; Estienne, Cynthia Elizabeth; Thomason, Wade E. (Virginia Cooperative Extension, 2007-07)
    A summary of replicated research on demonstration wheat plots in Eastern Virginia, conducted by Virginia Cooperative Extension in Cooperation with local producers and agribusinesses.