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4 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, Sapporo, 2012, Agronomy/Phytopathology Groups, AP 16

    The effect of potassium application rate, application method and timing on the yield and quality of flue-cured tobacco

    VANN M.C.(1); FISHER L.R.(1); JORDAN D.L.(1); SMITH W.D.(2); HARDY D.L.(3); STEWART A.M.(4)
    (1) North Carolina State University, Department of Crop Science, Raleigh, NC, USA; (2) North Carolina State University, Administration-Research Services, Raleigh, NC, USA; (3) North Carolina Department of Agriculture & Consumer Services, Agronomic Division, Raleigh, NC, USA; (4) North Carolina Department of Agriculture & Consumer Services, Research Stations Division, Raleigh, NC, USA
    With rising input costs, growing environmental concerns, and new higher yielding cultivars, potassium fertilizer recommendations for tobacco must be accurate. Research was conducted in North Carolina to evaluate the effect of potassium rate and ...
  4. CORESTA Congress, Sapporo, 2012, Plenary Session, abstr. IG 01

    Current status of the field testing program for pesticide residues in North Carolina flue-curedtobacco

    VANN M.C.(1); FISHER L.R.(1); PRIEST J.A.(1); WHITLEY D.S.(1); STEWART A.M.(2)
    (1) North Carolina State University, Department of Crop Science, Raleigh, NC, USA; (2) North Carolina Department of Agriculture & Consumer Services, Research Stations Division, Raleigh, NC, USA
    Pesticide residues on tobacco have received increasing attention in recent years. While pesticide residue evaluations have been conducted for many years in tobacco, recent legislation granting the Food and Drug Administration regulatory oversight of ...