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Soil and Additives
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17 Sites in Soil and Additives
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Includes articles on making potting mixes, proper watering techniques, nutrient needs, and mulching.
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Guide to creating and maintaining good quality soil.
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Ohio State University
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Offers an overview of soil acidity and the necessary major and minor elements.
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Ohio State University
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Instructions for improving soil. Includes soil components, soil testing and soil amendments.
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Ohio State University
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Explains iron chlorosis in trees and plants, and how to correct it.
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Ohio State University
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Ohio State University
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From Ohio State U.
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Gardening and in particular, soil information from the Oregon State University.
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A number of publications (in PDF format) dealing with topics about soil.
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References about the fertility, compaction, testing and conservation of soil. Published by the University of Nebraska.
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Ohio State University
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Publications about fertilizing a number of different plants, from the North Dakota State University.
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An introduction to understanding the basic components of soil.
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