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Definition
| elements required by plants in relatively large amounts |
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| elements plants need in relatively small amounts |
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Definition
mixture of partricles derived from rock, living organisms, humus
most fertile soil |
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| decomposing organinc material formed by bacteria and fungi |
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Definition
| positively charged minerals are made available to the plant when hydrogen ions in the soil displace the mineral ions form the clay particles. |
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Definition
| catalyzes nitrogen fixation which reduces N2 to NH3 by adding electrons and hydrogen ions |
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Definition
| swellings on roots that contain nitrogen fixing bacteria |
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| modified roots w/ symbiotic associations of fungi and roots |
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| differnt macronutrients plants need |
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Definition
| carbon oxygen hydreogen nitrogen sulfur phosphrous potassium calcium magnesium |
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Term
| different micronutrients plants need |
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Definition
| chlorine iron boron manganese zinc copper molybdenum nickel |
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