Soil Science Ch.12: Soil Fertility & Nutrient Cycle

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10 Terms

1
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chlorosis

lack of chlorophyll resulting in leaves going from light green to yellow

2
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marginal scorch

burnt appearance from potassium deficiency

3
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lodging

soft, weak, injured growth

4
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necrotic

dead brittle edges on leaves

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macronutrients

6 of them, used the most by plants; include nitrogen, potassium, calcium, phosphorus, sulfur, and magnesium.

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micronutrients

essential nutrients needed in smaller amount (9); aka trace elements

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nitrogen loss

immobilization, denitrification

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nitrogen addition

fixation, fertilization, OM addition

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nitrogen transformation

mineralization, nitrification

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trace elements

metals, excess can be toxic