. Cultures de remplacement pour les Prairies. Agriculture; Cultures; Alternative agriculture; Crops; Cultures de plein champ; Cultures de plein champ. Onagre (en haut); graine (en bas). 20. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kiehn, Ferdinand A; Canada. Agriculture Canada. Service des programmes de recherche. Agriculture Canada

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Keywords: ., bookcentury1900, bookco, bookleafnumber20, booksubjectagriculture