soils pres 09
DESCRIPTION
soil overview for pdcTRANSCRIPT
0909
Urban Permaculture Urban Permaculture Design Certification CourseDesign Certification Course
Courtesy of Fred BoveCourtesy of Fred Bove
• Soil and Soil Structure• Drylands, Temperate, Tropics• Reading Weeds• Soil Remediation
Soil Types
Soil Transformation
• Indigenous material
• Climate
• Topography
• Biota
• Time
• Human activity
Soil Composition
• N – P – K
• Organic Material
• Trace elements
• pH
A Delicate Balance of Relationships
www.naturalsciences.be
Soil Remediation
Rhizobia
Rhizobial Relationships
The pea root sends a chemical message that attracts Rhizobia, then surrounds the bacteria, which set up housekeeping inside the root’s cells. © Bert Dodson
Biochar
Sonchus asper – Sow thistleHigh N – neutral pH
Medicago hispida – Burr cloverLow N – potentially fertile soil
Erodium cicutarium - StorksbillN ? Dry soil – saline conditions
Malva neglecta – mallow, cheeseweeddeep nitrogen – disturbed soil
Stellaria media – Chickweed Very high N – neutral pH, if stunted, low P
Cyperus esculentus – Nut sedgeWet soil/ poor drainage – acid pH
Ipomea purpurea – morning glorylow P – compacted soil
Brassica kaber – CharlockLow Ca or Low P – accumulates salt/P
Plantago lanceolata – PlantainK tester
Taraxacum officinale – DandelionN & P rich soil – attracts earthworms
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