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Distinct soil layers - PowerPoint PPT Presentation

Soils and Fertilizer

Soils and Fertilizer. Darrell Blackwelder February 1, 2006. Fun Fact: How long does it take to make top soil?. Nature takes from 500 to 1,000 years to make 1 inch (2.5 centimeters) of topsoil 2,000 to 5,000 years to replace a loss of 5 to 10 inches (13 to 25 centimeters).

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Soil formation and soil profiles

Soil formation and soil profiles. Unit 5: Biosphere Ms. Thind. Formation of Soil. Decaying vegetation: In areas of favorable climate for vegetation growth Decaying organic matter is broken down ? dark, sticky partly decomposed layer at soil surface ? humus Very fertile

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Distinct soil layers - PowerPoint PPT Presentation

Soils and Fertilizer

Soil formation and soil profiles