00000nam 2200000zi 4500 9.902152 CaOODSP 20250304092519 m o d f cr cn||||||||| 210729t19691969oncab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- A53-1376/1969E-PDF A53-1376 Ripley, P. O., author. Crop rotation and productivity / P.O. Ripley. [Ottawa] : Department of Agriculture, 1969. ©1969 1 online resource (78 pages) : illustrations, map text txt rdacontent computer c rdamedia online resource cr rdacarrier "Digitized by the Internet Archive in 2012 with funding from Agriculture and Agri-Food Canada - Agriculture et Agroalimentaire Canada." "Publication 1376, 1969." Includes bibliographical references (pages 72-78). Crop rotation Canada. Cop yields Canada. Assolement. Cultures de plein champ Rendement. Canada. Department of Agriculture, issuing body. PDF 7.03 MB https://publications.gc.ca/collections/collection_2021/aac-aafc/A53-1376-1969-eng.pdf