RelativeResourceManager(6) - – Supply nutrients Soil...

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Intro to Soil Science Lec. 1-2 Introduction Book Ch. 1 1/10/2011 6 Long term soil use depends on: Erosion Salinity, Sodium accumulation Soil pollution Desertification Compaction Cover/Burial/Urbanization Subsidence/Flooding Functions of Soils Medium for Plant Growth , the most important part of the food factory civilization depends on – Physical support –A ir – Water – Temperature moderation
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Unformatted text preview: – Supply nutrients Soil- Plant Interaction Research Von Helmont (1577-1644) experiment: – Planted willow tree in pot of soil – 200.0 lbs of soil initial – Added water for 5 years – Plant weighed 169.0 lbs, soil 199.9 lbs – Assumed experimental error – Concluded tree came from air and water only – Soil has always been under appreciated!...
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This note was uploaded on 06/21/2011 for the course NRES 201 taught by Professor Olson,k during the Spring '08 term at University of Illinois, Urbana Champaign.

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