Search Results

9 results

  1. Tob. Reporter, 1994, 121-7, p. 53-5. Tob. Sci, 1994, 38, p. 55-7, ISSN.0361-5693

    Economic analysis of a one-person mechanized harvest system for Maryland tobacco

    HANSON J.C.; MCKEE C.G.
    University of Maryland, Dept. Agric. and Resources Econ., College Park, MD, USA
    The length of time was measured for one person to harvest and barn Maryland tobacco using a partially mechanized system where stalks were cut mechanically, plants were speared onto sticks, sticks were loaded onto beams in the field, and beams were...
  2. Tob. Reporter, 1993, 120-11, p. 37-45. Tob. Sci, 1993, 37, p. 69-77, ISSN.0361-5693

    Factors influencing the irrigation efficiency of flue-cured tobacco grown in north Queensland, Australia

    TONELLO P.E.; PREGNO L.M.; WEEDEN B.R.
    Dept. of Primary Industries, Mareeba, Queensland, Australia
    A three-year study was begun in 1988 using commercial size (10-15 ha) flue-cured tobacco ( Nicotiana tabacum L.) plantings within the Mareeba-Dimbulah Irrigation Area (MDIA) of north Queensland, Australia. This study aimed to determine the water...
  3. Tob. Reporter, 1991, 118-1. Tob. Sci, 1991, 35, p. 1-5, ISSN.0361-5693

    Genetics of hornworm resistance in Maryland tobacco

    WILHITE F.M.; AYCOCK M.K.; MENCHEY E.K.
    University of Maryland, Maryland Agric. Exper. Sta., Dept. of Agronomy, College Park, MD, USA
    During outbreak years, the two species complex of tobacco hornworms, Manduca sexta (L.) and tomato hornworms, M. quinquemaculata (Haworth), may cause considerable economic loss to Maryland tobacco, Nicotiana tabacum (L.). This study was designed to...
  4. Tob. Sci., 1991, 35, p. 45-8., ISSN.0082-4623

    Comparison of extractants for estimating heavy metal availability in mid-Atlantic coastal plain soils

    MULCHI C.L.; ADAMU C.A.; BELL P.F.
    University of Maryland, Maryland Agricultural Experiment Station, Dept. of Agronomy, College Park, MD, USA
    The effectiveness of four soil extractants - diethylene triamine pentacetic acid (DTPA) at pH 7.3 and 5.3, Mehlich 1 (0.05 N HCl + 0.025 NH2SO4), and Mehlich 3 - for estimating labile Zn, Cu, Mn, Pb, Ni, and Cd in Coastal Plain tobacco soils in...
  5. Tob. Sci., 1991, 35, p. 79-84., ISSN.0082-4623

    Nine years continuous tobacco monocropping compared with alternative cropping frequencies and sequences. Part 1. Effect on leaf yield and quality

    LITTLEMORE J.; TONELLO P.E.; RASMUSSEN T.S.
    Dept. of Primary Industries, Mareeba, Queensland, Australia
    Flue-cured tobacco (Nicotiana tabacum L.) was grown on a granitic soil in Queensland for a total of 9 years. Following a pre-trial bedding in tobacco crop, an 8-year tobacco cropping rotation experiment with cropping frequencies of tobacco every one...
  6. Tob. Sci., 1962, 6-40, p. 167-171, ISSN.0082-4523

    Effects of air pollution, nitrogen levels, supplemental irrigation, and plant spacing on weather fleck and leaf losses of Maryland tobacco

    MENSER H.A.; STREET O.E.
    Crops Research Division, A.R.S., U.S.D.A., Beltsville, Maryland and Department of Agronomy, University of Maryland, College Park, Maryland USA
    Fleck and leaf loss often found in Catterton tobacco production probably result from the interaction of many factors. The influences of nitrogen fertilization, plant competition, and moisture supply in the presence of products of urban photochemical...