Sort By:
  1. Crop yields from Illinois experiment fields in 1929 together with a general summary for the rotation periods ending in 1929 / by F.C. Bauer.
    By: Bauer, F. C.
    Publication info: Urbana, Ill. :University of Illinois Agricultural Experiment Station,1930.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Agricultural experiment stations  Crop yields  Illinois  Soil management  
    View Book
  2. Crop yields from Illinois soil experiment fields in 1928 / by F.C. Bauer.
    By: Bauer, F. C.
    Publication info: Urbana, Ill. :University of Illinois Agricultural Experiment Station,1929.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Agricultural experiment stations  Crop yields  Illinois  Soil management  
    View Book
  3. Day length and crop yields /
    By: Parker, M. W. - Borthwick, H. A.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1942.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Crop yields  Effect of light on  Plant photoperiodism  Plants  
    View Book
  4. Improvements in crop growing
    By: Robertson, James W.
    Publication info: S.l. :s.n.,1899?
    Contributed by: Canadiana.org (archive.org)
    Subjects: Agriculture  Canada  Crop yields  
    View Book
  5. Losses in agriculture : a preliminary appraisal for review /
    By: United States.
    Publication info: [Washington, D.C.] :Agricultural Research Service, U.S. Dept. of Agriculture,1954.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agricultural pests  Agriculture  Crop yields  United States  Veterinary medicine  
    View Book