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File:Control of bacterial wilt (Bacterium solanacearum) of tobacco as influenced by crop rotation and chemical treatment of the soil (1944) (20665710266).jpg

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Title: Control of bacterial wilt (Bacterium solanacearum) of tobacco as influenced by crop rotation and chemical treatment of the soil
Identifier: controlofbacteri692smit (find matches)
Year: 1944 (1940s)
Authors: Smith, Thomas Earle, 1910-
Subjects: Tobacco Diseases and pests
Publisher: Washington, D. C. : U. S. Dept. of Agriculture
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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6 CIRCULAR 6 92. U. S. DEPARTMENT OF AGRICULTURE In considering the length of rotation, it was demonstrated in 1939 that a period of 3 years between tobacco crops was more effective than a period,of 2 years. Tobacco grown after 3 years of corn or soybeans had 31.5 and 17.5 percent wilted plants, respectively, whereas tobacco grown after a 2-year period (1 year of soybeans and 1 year of corn) had 72.0 percent wilted plants. On comparison between different cropping periods, however, with data obtained during separate seasons, the results were not consistent. For example, tobacco grown in 1937, 1938, 1939, and 1940, following 1, 2, 3, and 4 years of corn, averaged 6.5, 2.0,
Text Appearing After Image:
Figure 1.—Control of bacteria) wilt by crop rotation on small plots: A, Tobacco grown after tobacco every year since 1935; B, tobacco grown after 3 years of corn: C, tobacco grown after 3 vears of sovbeans. Photographed August 7, 1939.

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https://www.flickr.com/photos/internetarchivebookimages/20665710266/

Author Smith, Thomas Earle, 1910-
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Volume
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no.692
Flickr tags
InfoField
  • bookid:controlofbacteri692smit
  • bookyear:1944
  • bookdecade:1940
  • bookcentury:1900
  • bookauthor:Smith_Thomas_Earle_1910_
  • booksubject:Tobacco_Diseases_and_pests
  • bookpublisher:Washington_D_C_U_S_Dept_of_Agriculture
  • bookcontributor:U_S_Department_of_Agriculture_National_Agricultural_Library
  • booksponsor:U_S_Department_of_Agriculture_National_Agricultural_Library
  • bookleafnumber:8
  • bookcollection:usda_circular
  • bookcollection:usdanationalagriculturallibrary
  • bookcollection:fedlink
  • bookcollection:americana
  • bookcollection:biodiversity
  • BHL Collection
  • BHL Consortium
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19 August 2015
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current15:50, 19 August 2015Thumbnail for version as of 15:50, 19 August 20152,160 × 2,884 (2.34 MB)Fæ (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Title''': Control of bacterial wilt (Bacterium solanacearum) of tobacco as influenced by crop rotation and chemical treatment of the soil<br> '''Identifier''': controlofbacteri692smit ([h...

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