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11 Cards in this Set
- Front
- Back
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Topsoil |
Mixture of particles of rock, living organisms and humus. Richest in organic material "A horizon" |
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Humus |
Decomposing organic material formed by bacteria and fungi on dead organisms, feces, fallen leaves, etc. Prevents clay from packing together Builds crumbly soil that retains water, but allows for aerated roots
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Anion |
Negatively charged ions (Sulfate, Nitrate, Phosphate) Not bound tightly to negatively charged soil particles, easily released (when rain) |
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Cations |
Positively charged ions (Magnesium, Potassium, Calcium) Less likely to be leached, bind closely to soil
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Phytoremediation |
a biological, nondestructive technology that reclaims contaminated areas |
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Hydroponic Culture |
plants grown in mineral solutions - to determine which chemicals elements are essential |
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Macronutrients |
Nutrients that plants require in relatively large amounts (9) |
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Micronutrients |
Plants need them in small amounts (8) |
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Epiphyte |
Nourishes self, but grows on another plant |
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Parasitic Plants |
Absorb sugar and minerals from their living hosts |
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Carnivorous plants |
Obtain some nitrogen and minerals by killing small animals (venus fly trap) |
