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14 results

  1. 47th TWC, Tob. Work. Conf., 2016, abstr. 03

    Evaluation of NCDA boron sufficiency ranges for flue-cured tobacco

    JERNIGAN C.(1); HARDY D.H.(1); HICKS K.A.(1); McGINNIS M.S.(1); FISHER L.R.(2); VANN M.C.(2)
    (1) North Carolina Department of Agriculture and Consumer Services, Raleigh NC USA; (2) North Carolina State University, Raleigh NC USA
    Boron (B) is an essential micronutrient for optimum plant growth of flue-cured tobacco and is required in trace amounts (<1.0 lb B/acre). Since use of premium tobacco fertilizer grades that contain trace amounts of B are not typical in today’s...
  2. 47th TWC, Tob. Work. Conf., 2016, abstr. 08

    Evaluation of three transgenic varieties compared to three conventional varieties for low alkaloid production with three nitrogen variables

    CHEEK J.A.; VANN M.C.; FISHER L.R.
    North Carolina State University, Raleigh NC USA
    Nicotine is one of the most studied and scrutinized plant secondary metabolites. Its concentration in tobacco products now falls under the jurisdiction of the Food and Drug Administration and it has been speculated that increased regulation might...
  3. 47th TWC, Tob. Work. Conf., 2016, abstr. 15

    The influence of primary tillage and flue-cured tobacco management on Palmer amaranth populations in a three year crop rotation

    VANN M.C.; FISHER L.R.; JORDAN D.L.; STEWART A.M.; WELLS R.
    North Carolina State University, Raleigh NC USA
    Glyphosate-resistant Palmer amaranth (PA) (Amaranthus palmeri) is a significant issue in agronomic crop production. Research was conducted from 2012 to 2014 and from 2013 to 2015 to quantify the impact of primary tillage, herbicide program, and...
  4. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 09

    Effect of organic nitrogen source and application rate on the yield and quality of flue-cured tobacco

    VANN M.C.; FISHER L.R.; WHITLEY D.S.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Organic carbon-based sources of nitrogen, such as livestock waste or by-products, have not been recommended for the production of flue-cured tobacco. At present, there is significant demand for organically produced leaf, and in these systems the use...
  5. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 10

    Effect of organic nitrogen source and application timing on the yield and quality of flue-cured tobacco

    MASON J.H.; VANN M.C.; FISHER L.R.; WHITLEY D.S.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Mineralization rates of organic nitrogen are extremely dependent upon factors such as soil pH, temperature, and moisture. Flue-cured tobacco is extremely sensitive to nitrogen availability; therefore, many questions have been presented regarding...
  6. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 21

    Evaluation of three transgenic and three conventional varieties for low alkaloid production with three nitrogen variables

    CHEEK J.A.; VANN M.C.; LEWIS R.S.; FISHER L.R.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Nicotine is one of the most studied and scrutinized plant secondary metabolites. In the United States, its concentration in tobacco products now falls under the jurisdiction of the Food and Drug Administration and it has been speculated that...