Table of Contents
Soil Components
PPT Slide
Soil Water
Pore space and air-water relations
Soil properties that affect water movement and water holding capacity
Soil Particle Sizes
Approximate surface areas of 1 gram samples
PPT Slide
Soil Structure
Soil Structure
Soil Structure
Compaction
Benefits of Organic Matter
Topography
Nutrients
Problems with excess nutrients
How Nutrients Become Available To Plants
Nitrogen Cycle
Comparing organic and processed fertilizers
Fertilizer sources
Comparing organic and processed fertilizers
How much fertilizer to use?
Acidity and pH
pH scale
Soil Acidification
Soil Acidity Affects:
Desirable pH Ranges
Increasing pH
Decreasing pH
What a Soil Test Tells You:
Taking a Sample
Organic Materials
Biological Release (Mineralization)
Carbon:Nitrogen (C:N) ratio
Organic Materials N availability
Organic application guidelines, 2002 (Middle-of-the road estimates)
Compost
Green Manure or Cover Crops
Using animal manure safely
Using animal manure safely
Biosolids (Wastewater Solids)
References
Soils web address: www.puyallup.wsu.edu/soilmgmt/
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