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Ultisol |
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Ultisol [′əl·tə‚sȯl] (geology) A soil order characterized by typically moist soils, with horizons of clay accumulation and a low supply of bases. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In the United States, agricultural soils with the lowest lead contents are leached ultisols containing 8 ppm and those with the highest are the clay-rich vertisols with 17 ppm (Helmke 2000, Table 1. |
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