1. 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...
  2. 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...
  3. 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...
  4. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 34

    Evaluation of non-tobacco labeled herbicides for late season application

    WHALEY W.T.; VANN M.C.; FISHER L.R.; WHITLEY D.S.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    Recently, viable seed from various weed species has been found in tobacco exports from the United States, initiating great concern in foreign markets and a zero tolerance policy. University specialists believe the majority of weed seed contamination...
  5. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 36

    Spinosad and cyantraniliprole residues in flue-cured tobacco

    INMAN M.D.; VANN M.C.; SEAGROVES R.W.; FISHER L.R.
    North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.
    From 2013 to 2015 research was conducted to establish the maximum expected pesticide residue on cured tobacco that would result from a maximum labeled application rate and minimum pre-harvest interval of specific active ingredients. Residues of two...
  6. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 61

    Lower leaf removal to reduce lower stalk grades of flue-cured tobacco

    FISHER L.R.(1); VANN M.C.(1); INMAN M.D.(1); BROWN A.B.(2)
    (1) North Carolina State University, Dept. of Crop Science, Raleigh, NC, U.S.A.; (2) North Carolina State University, Department of Agriculture & Resource Economics, Raleigh, NC, U.S.A.
    At present, interest has been expressed by the tobacco industry in regards to lower leaf removal programs designed to eliminate lower stalk grades (Priming and Lug) in flue-cured tobacco. Research was conducted in North Carolina to evaluate removal...
  7. CORESTA Congress, Quebec, 2014, Agronomy/Phytopathology Groups, AP 27

    Evaluation of nitrogen application timings on yield, quality, and sucker control in flue-cured tobacco

    FISHER L.(1); DRAKE M.(2); VANN M.C.(1)
    (1) North Carolina State University, Raleigh, NC, U.S.A.; (2) Universal Leaf NA, Nashville, NC, U.S.A.
    Research was conducted in 2012 and 2013 to evaluate the effects of late season nitrogen application timing and method on yield, quality, and leaf nitrogen content. The total recommended nitrogen rate was split over up to four applications during...