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<p>on how soils exchange <a href="page.php?w=ion">ion</a>s, and is considered the father of soil chemistry. Other scientists who contributed to this branch of <a href="page.php?w=ecology">ecology</a> include <a href="page.php?w=Edmund_Ruffin">Edmund Ruffin</a>, and <a href="page.php?w=Linus_Pauling">Linus Pauling</a>.</p>

<p><big> History </big></p>
<p>Until the late 1960s, soil chemistry focused primarily on chemical reactions in the soil that contribute to <a href="page.php?w=pedogenesis">pedogenesis</a> or that affect <a href="page.php?w=plant_growth">plant growth</a>.</p><p>
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