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Other links at Soil and Additives |
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The Schundler Company
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Collection of articles and resources about the horticultural uses of perlite and vermiculite.
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| 4. |
Improving Soil
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Oregon horticulturalist offers information on soil components, pH, testing methods, and nutrients, and means of improving it by using amendments and improving drainage and aeration.
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| 5. |
The World of Soil
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An introduction to soil components, acidity, fertility, and care, as well as an extensive collection of links to other soil resources.
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