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Related Flashcards
Cards In This Set
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The pore space in a soil filled with ___% of water and ___% of
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25%, 25%
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The moisture-holding capacity of soil is sometimes improved by
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Adding organic matter
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The four things that plants receive from soil are
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Anchorage of roots, air, moisture, and food
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Certain plant food elements are called major elements because
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Plants use them in large amounts
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Nitrogen causes plants to
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Grow rapidly and develop dark green color
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Amonium nitrate contains
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33% nitrogen
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Phosphorus causes plants to
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Produce more flowers and seeds
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Super phosphate fertilizer contains ___% phosphate
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20
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Potassium causes plants to
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Resist disease and develop strong roots
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List two fertilizer sources of potassium for plants: ____ and ____ of potash
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Muriate and nitrate
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As the outside temperature increases, plant growth normally
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Increases if moisture is available
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Green plants cannot live without light because
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It is necessary for the manufacture of food
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Lime furnishes the plant food element:
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Calcium
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Two plants that grow best in the acidic soil are
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Azaleas and blueberries
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To raise soil pHand lower soil acidity
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Lime is added to the soil
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