Plant Nutrition Flashcards

1
Q
  • vital for formation of nucleic acids, amino acids, proteins, and enzymes
  • integral component of the chlorophyll molecule
  • promotes vigorous vegetative growth
  • associated with dark green color
A

Nitrogen

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2
Q

signs of deficiency:

  • chlorosis on older leaves first
  • stunted growth
  • lack of vigorous growth
A

Nitrogen

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3
Q

excessive applications of N cause…

A
  • foliar burn
  • shoot growth at expense of root growth
  • plant to become less tolerant to environmental extremes
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4
Q

essential functions of ____

  • production of ATP and ADP
  • increases root growth
  • formation of nucleic acids, coenzymes, and some phosphoproteins and lipids
A

Phosphorous

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5
Q

signs of deficiency of ___

  • might be some purple discoloration
A

Phosphorus

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6
Q

essential functions of ____:

  • water regulation by controlling the plant’s stomata
  • winter “anti-freeze” and summer “coolant”
  • promotes the chemical reactions needed at the growing points, called enzyme activation
A

Potassium

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7
Q

signs of ___ deficiency:

  • chlorosis, starting at bottom and moving to top
  • severe reduction of growth
  • general poor health
  • reduced cold tolerance
A

Potassium

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8
Q

most prevalent cation in soil after H

A

calcium

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9
Q

essential functions of ___:

  • structural support
  • strengthens cell membranes and cell walls
  • essential for cell division and elongation
A

Calcium

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10
Q

signs of __ deficiency:

  • spindly growth
  • very rare
A

calcium

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11
Q

essential functions of ___:

  • central atom in chlorophyll
  • component in protein synthesis
  • facilitates energy transfers in photosynthesis
A

Magnesium

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12
Q

signs of __ deficiency:

  • interveinal chlorosis
  • symptoms similar to those of N
A

Magnesium

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13
Q

essential functions of ___:

  • component of certain important amino acids
  • involved in protein and chlorophyll synthesis
  • impotant in production of plant vitamins
A

Sulfur

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14
Q

factors affecting release of controlled release fertilizers (CRF’s)

A
  • coating
  • moisture
  • substrate
  • temperature
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15
Q
A
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