Soil and Nutrients NOTES I. Soil: A. Formation: Unless soil is transported, weathering and time...
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Transcript of Soil and Nutrients NOTES I. Soil: A. Formation: Unless soil is transported, weathering and time...
Soil and Nutrients NOTES
I. Soil:
A. Formation:
Unless soil is transported,
weathering and time break down
parent rock and humus (organic material).
I. Soil:
B. Characteristics:
• color: darker soil = more nutrients (usually)
I. Soil:B. Characteristics:• texture: • varies from sand (large
particles, loose, sinks in water) to clay (small particles, clumped, suspended in water)
• between these extremes is best: loam (mixture of sand and clay)
I. Soil:
B. Characteristics:• depth: near surface = generally more nutrative
II. Nutrients:• A. Macronutrients:• Nutrients needed in larger
quantities (from nature or from compost or fertilizer)
• N, P, K (Nitrogen, Phosphorous, Potassium)--limiting factors
• Also C,O,H,Ca,Mg,Na--but they are not limiting as they are readily available in most environments
II. Nutrients:
• B. Micronutrients:
• Nutrients needed in small quantities--but still potential limiting factors and of equal importance
• Cu, Zn, Fe, I, Mn, others
II. Nutrients:
• C. Availability of nutrients:
II. Nutrients:
• D. Cycling of nutrients: