Search results for: Robertson, Lynn Shelby, 1916-

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  1. 1

    A study of some effects of seven systems of farming upon crop yields and soil structure

    Authors: Robertson, Lynn Shelby, 1916-
    Published: 1955
    Physical Description: 8 unnumbered pages, 84 leaves : illustrations ; 29 cm
    Thesis Book
  2. 2

    Essential secondary elements. Sulfur

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1976
    Physical Description: 3 pages, 1 unnumbered page.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  3. 3

    Essential micronutrients. Manganese

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1976
    Physical Description: 3 pages, 1 unnumbered page.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  4. 4

    Essential micronutrients. Boron

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1976
    Physical Description: 4 unnumbered pages.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  5. 5

    Tillage systems for Michigan soils and crops. Part 1, Deep, primary, supplemental and no-till

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1977
    Physical Description: 7 pages, 1 unnumbered page : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  6. 6

    Crop residue and tillage considerations in energy conservation

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1977
    Physical Description: 5 pages, 1 unnumbered page : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  7. 7

    Soil erosion by water : --an unsolved problem

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1977
    Physical Description: 8 pages : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  8. 8

    Compact soil : visual symptoms

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1980
    Physical Description: 10 pages : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  9. 9

    Compact soil : visual symptoms

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1986
    Physical Description: 11 pages : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  10. 10

    Essential secondary elements : magnesium

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1976
    Physical Description: 4 unnumbered pages : illustrations.
    Connect to online resource -- All users (Michigan State University Libraries)
    Electronic eBook
  11. 11

    Essential secondary elements : calcium

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1976
    Physical Description: 4 unnumbered pages.
    Connect to online resource -- All users (Michigan State University Libraries)
    Electronic eBook
  12. 12

    Essential micronutrients. Zinc

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1976
    Physical Description: 4 unnumbered pages.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  13. 13

    Tillage systems for Michigan soils and crops. Part 2, Secondary tillage and cultivation

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1977
    Physical Description: 6 pages : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  14. 14

    Molybdenum, an essential plant micronutrient

    Physical Description: 2 unnumbered pages.
    Connect to online resource--All users (Michigan State University Libraries)
    Electronic
  15. 15

    Iron, an essential plant micronutrient

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1981
    Physical Description: 4 unnumbered pages.
    Connect to online resource--All users (Michigan State University Libraries)
    Electronic eBook
  16. 16

    Copper : an essential plant micronutrient

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1981
    Physical Description: 3 unnumbered pages.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  17. 17

    Till planting on ridges

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1983
    Physical Description: 11 pages, 1 unnumbered page : illustrations.
    Connect to online resource - All users (Michigan State University Libraries)
    Electronic eBook
  18. 18

    Wind erosion control on organic soil

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1978
    Physical Description: 6 unnumbered pages : illustrations.
    Connect to online resource -- All users (Michigan State University Libraries)
    Electronic
  19. 19

    Surface drainage for improved crop production

    Authors: Robertson, Lynn Shelby, 1916-
    Published: Cooperative Extension Service, Michigan State University, 1979
    Physical Description: 8 pages : illustrations.
    Connect to online resource -- All users (Michigan State University Libraries)
    Electronic
  20. 20

    A study of some effects of seven systems of farming upon crop yields and soil structure

    Authors: Robertson, Lynn Shelby, 1916-
    Published: 1955
    Physical Description: 1 online resource (8 unnumbered pages, 84 pages) : illustrations
    Connect to online resource - All users (Digital Object Identifier Permalink)
    Connect to online resource - MSU authorized users
    Thesis Electronic eBook