Term
| Plants deficient in N tend to exhibit... |
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| yellowish or pale green leaf colors. |
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Term
| Which leaves are the first to turn yellow when N is deficient? |
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Term
True or false: Nitrogen deficient plants mature more quickly than other plants.
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Term
| What happens when too much N is supplied? |
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Definition
| Excessive vegetative growth, delayed plant maturity, more susceptibility to disease and pests. |
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Term
| What are the principle forms of N taken up by plants? |
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Definition
| NO3- (nitrate) and NH4+ (ammonium) |
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Term
| The atmosphere is what percentage of N? |
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| True or false? N is directly usable to plants. |
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| The SOM is typically what percent N? |
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