Search Results

24 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 07

    Float water alkalinity adjustment in organic seedling production

    VANN M.C.(1); STEVENS D.A.(1); SHORT M.(1); McGINNIS M.(2)
    (1) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.; (2) North Carolina Department of Agriculture & Consumer Services – Agronomic Division, Raleigh, NC, U.S.A.
    Float water bicarbonate (HCO 3-) concentration in excess of 2.0 meq/L (100 ppm) can result in stunted, unusable seedlings unless neutralized. In conventional greenhouse systems, sulfuric acid is used for this purpose; however, it is not currently approved ...
  2. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 09

    Chloride application: effects to nutrient assimilation, agronomic performance, and cured leaf chemistry of flue-cured tobacco

    VANN M.C.(1); FISHER L.R.(1); INMAN M.D.(1); HARDY D.H.(2)
    (1) North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.; (2) North Carolina Department of Agriculture & Consumer Services – Agronomic Division, Raleigh, NC, U.S.A.
    Chloride (Cl-) application in excess of 34 kg ha-1 has generally been discouraged in the production of U.S. flue-cured tobacco, due to the negative effects the nutrient can have on cured leaf yield, quality, and smoke sensory. However, fertilizer blending ...
  3. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 16

    Flue-cured tobacco tip leaf yield, quality, value, and color distribution as influenced by cultivar and harvest schedule

    VANN M.C.; FISHER L.R.; INMAN M.D.; WHITLEY D.S.; SEAGROVES R.W.; BARNES K.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Changes in consumer preference and export strategy strongly influence the buying practices of tobacco leaf dealers and cigarette manufacturers. In current times, a dark-colored (orange to red) style of flue-cured tobacco is preferred over a brighter style ...
  4. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 21

    Quantifying dicamba residue in contaminated sprayers

    INMAN M.D.; VANN M.C.; FISHER L.R.; GANNON T.W.; JORDAN D.L.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    The deregulation of dicamba-tolerant cotton and soybean has increased the potential for dicamba exposure to tobacco through drift or tank contamination. Improper cleaning of sprayer equipment and off-target dicamba exposure can have detrimental ...
  5. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 22

    Field screenings of S-metolachlor for weed suppression in flue-cured tobacco

    CLAPP A.M.; VANN M.C.; FISHER L.R.; INMAN M.D.; SEAGROVES R.W.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    With limited herbicide options and a growing concern to herbicide-resistant weeds, there is a strong need for additional chemical weed control materials in tobacco. S-metolachlor is labeled for use in a variety of agronomic and horticultural crops in the ...
  6. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 27

    Critical period for weed control in flue-cured tobacco

    INMAN M.D.; VANN M.C.; FISHER L.R.; JORDAN D.L.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    Field experiments were conducted to determine the critical period for weed control (CPWC) in flue-cured tobacco. This period consists of two separately measured timings; a critical weed-free period and a critical timing for the weed removal period. ...
  7. CORESTA Congress, Kunming, 2018, Plenary Workshop, APSTW 01

    The modern tobacco agronomist – utilizing tradition and change to sustain an industry

    VANN M.C.
    North Carolina State University, Department of Crop & Soil Sciences, Raleigh, NC, U.S.A.
    The role of the tobacco agronomist has changed remarkably over the last half-century. No longer are agronomists simply called upon to conduct applied research or to provide expertise and training in applied agriculture, but rather all of these things and ...
  8. 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 of ...
  9. 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 ...