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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Evans, Morgan W. (Morgan William),
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, [1933]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: AgSpace  crop yield  Forage plants  Hay  Internet resource  Phleum pratense  seed crop production  Timothy-grass  Varieties  variety trials