Elementary principles of agriculture : a text book for the common schools elementaryprinci02ferg Year: 1913 84 Elementary Principles of Agriculture r BE E F A A A^ tv Ti 1 [â f, i E f- 1 \§j ? X ^ * o â 5 z s. â o t- STRAWBERRIES A. Showing the amounts of nitrogen, phosphoric acid, and potash removed from the farm when 1,000 pounds each of beef, m^illi, butter, and strawberries are sold. CORN WHEAT OATS

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