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Handbook of Plant Nutrition
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Composting: The Ultimate...
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Liquid Gold: The Lore and...
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The Cyanide Canary
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Organic Gardener's Composting
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Fertilizers for Free
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Bread from Stones
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Bokashi Composting: Scraps to...
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Enriching the Earth: Fritz...
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Essential Composting Toilets:...
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Seaweed in agriculture and...
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Western fertilizer handbook
California Fertilizer Association. Soil Improvement Committee
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Western Fertilizer Handbook:...
California Fertilizer Association
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