OCR Text |
Show Tobacco Impoverishes 8olt. It has been calculated that a ton ol tobacco vithdraws more than a hundredweight hun-dredweight of mineral consn luents from an acre of land. This would appear ap-pear to be an astounding waste of material, ma-terial, which must be of enormous value to the soil, considering that 75 kper cent consists of calcium and potas-1 potas-1 situn salts and l.r per cent of mag nesium and sodium si.lts. Including nearly R per cent of the essential con-sti'ient con-sti'ient to all plants phosphoric acM |