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ENVS 150 - CH 11 Homework Quiz (Soils & Plant Nutrition)
Terms in this set (20)
Zone of greatest biological activity
The layer that contains unweathered to slightly weathered material
Plant nutrients, silts, clays, and other materials from the upper layer are leached into and accumulate in this layer
Layer of partially decomposed organic matter
Permanent wilting point
Plants cannot take up any water from the soil
Grainsize associated with low water holding capacity
Grainsize associated with medium water holding capacity
A soil situated with water
Grainsize associated with high water holding capacity
Visible damage to plants due to too much fertilizer
Visible symptoms due to extreme lack of fertilizer
Optimal growth, perfect foliage and plant appearance
Reduced plant growth but not visible deficiency symptoms
First discovered as essential for plant growth
C, O, & H nutrients
Major constituents in all organic compounds
N, P, K, Mg, Ca, & S nutrients
Major components of nucleic acids, lipids, carbohydrates, & proteins. Macronutrients.
Cl, Mn, Cu, & Zn nutrients
Major components of enzymes and enzyme regulation. Micronutrients.
Compound transported with phloem, moves from source to sink. Translocation.
Water & minerals
Taken up through the roots & transported up in xylem.
Moves from roots to stems, leaves, & into the atmosphere
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