Nutrients and Deficiencies Flashcards

(62 cards)

1
Q

Nitrogen

A

-Promotes vegetative growth (green growth)
-Primary macronutrient most needed
-Too much can make leggy or cause pest problems
-can deplete plant in low light settings

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2
Q

Nitrogen deficiency signs

A

-slow and stunted growth
-chlorosis
-shows up in older leaves and tips of grasses

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3
Q

Phosphorus

A

-roots, flowers, fruits
-balances nitrogen
-needs pH reaction to be useable (6-7)
-often included in starter fertilizers

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4
Q

Phosphorus deficiency

A

-small stunted leaves
-dark green or reddish leaves
-shows up in older leaves
-delayed maturity
-poor root system
-plant size reduction

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5
Q

Potassium

A

-metabolism, nutrient transport, overall health, flowering
-second only to nitrogen in plant consumption
-regulates functions related to osmosis
-taken up by roots
-less mobile in clay soils (more available)
-uptake more rapid in neutral soils

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6
Q

Potassium deficiency

A

-scorched leaf margins on lower older leaves
-interveinal chlorosis

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7
Q

Calcium

A

-used in third greatest amount by plants
-cell walls and membranes, pectin, stress resistance, regulating plant functions
-availability depends on CEC
-excessive K and Mg can inhibit uptake

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8
Q
A
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9
Q

Calcium deficiency

A

-blossom end rot
-appears in new growth

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10
Q

Magnesium

A

-essential ingredient in chlorophyll
-aids uptake of other elements, activates many enzyme systems
-easily leached from soil
-K and P can inhibit uptake

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11
Q

Magnesium deficiency

A

-less resistant to drought, cold, disease
-interveinal chlorosis in older leaves

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12
Q

Sulfur

A

-least quantity needed of macronutrients
-making chlorophyll and proteins, seed production, stress tolerance
-readily leached

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13
Q

Sulfur deficiency

A

-stunted newer leaves
-pale green
-looks like nitrogen deficiency

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14
Q

Iron

A

-metallic trace element, trace element used in greatest amounts
-form chemicals, especially chlorophyll
-solubility relates directly to pH (less available above 6)
-Acid loving plants may suffer shortage in alkaline or calcareous soils

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15
Q

Iron deficiency

A

-interveinal chlorosis on new leaves

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16
Q

Manganese

A

-metallic trace element
-formation of chlorophyll, speeds seed germination, crop maturing, helps plant take up other nutrients

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17
Q

Managese deficiency

A

-dwarfing
-interveinal chlorosis on young leaves

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18
Q

Copper

A

-metallic trace element
-chlorophyll and lignin, disease resistance, moisture control

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19
Q

Copper deficiency

A

-inhibit pollen formation
-lower fruit yield

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20
Q

Zinc

A

-metallic trace element
-chlorophyll and protein production
-synthesize plant growth hormone

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21
Q

Zinc deficiency

A

-tight growth of small leaves
-interveinal chlorosis

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22
Q

Chlorine

A

-anionic trace element
-found everywhere and water soluble

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23
Q

Chlorine deficiency

A

-rare but more common in palms

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24
Q

Boron

A

-anionic trace element
-cell wall and membrane integrity

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25
Boron deficiency
collapse of shoot and root tips
26
Molybdenum
-anionic trace element -needed for proper nitrogen metabolism -most available in high pH soils
27
Nickel
-metallic trace element, least amount needed -rarely deficient -metabolism of urea
28
Potassium deficiency in Palms
-affects older fronds first -early symptoms: translucent yellow-orange spots, black spots, dead tissue along margins -later symptoms: fronds stunted and trunk pencil pointing
29
Palms susceptible to potassium deficiency
-coconut -areca -spindle -queen -royal
30
Amendment for Potassium deficiency in palms
-slow release potash with magnesium (Mg deficiency can occur from extra potassium) -can take up to 2 years to recover
31
Magnesium deficiency in palms
-areas of poor soil and high rainfall -light yellow band along leaf margin starting on older leaves -in severe cases tips turn brown
32
Palms susceptible to magnesium deficiency
date palm
33
Amendment for Palms deficient in Magnesium
-apply 2-4 pounds of magnesium sulfate (epsom salt) per tree 4 times a year -may take years to recover
34
Manganese deficiency in Palms
-frizzeltop -shows up in acid loving palms in alkaline soil, too much water, or cold temperatures -symptoms on new growth: deformed, reduced size, dead brown areas -can kill the bud which kills the plant
35
Palms susceptible to Manganese deficiency
-Pygmy date -royal -queen -parotis
36
Amendment for Palm deficient in Manganese
-apply manganese sulfate to soil or spray on foliage -do not plant acid loving palms in alkaline soil
37
Nitrogen deficiency in Palms
-not a big problem -due to poor soil and lack of fertilizer -light green color and decreased growth -symptoms start on oldest fronds -entire canopy can turn yellow green and then white -pencil pointing
38
Amendement for palms deficient in nitrogen
-slow release fertilizer with nitrogen or a foliar spray
39
Iron deficiency in palms
-uncommon -due to poorly aerated soil, root damage, or improper planting depth -yellow-green fronds with green veining -appears on new leaves first -later, dead tissue at tips -can stunt or kill over time
40
Amendment for Palm with Iron deficiency
-add iron if not a condition issue
41
How do we test for soil nutrients?
EC reading or soil test
42
3 non-mineral/water Macronutrients
-Carbon -Hydrogen -Oxygen
43
C
Carbon
44
H
Hydrogen
45
O
Oxygen
46
3 Primary soil macronutrients
-Nitrogen -Phosphorus -Potassium
47
N
Nitrogen
48
P
Phosphorus
49
K
Potassium
50
3 Secondary soil macronutrients
-Calcium -Magnesium -Sulfur
51
Ca
Calcium
52
Mg
Magnesium
53
S
Sulfur
54
8 micronutrients
-Iron -Manganese -Copper -Chlorine -Boron -Nickel -Zinc -Molybdenum
55
Fe
iron
56
Mn
Manganese
57
Cu
Copper
58
Cl
Chlorine
59
B
Boron
60
Ni
Nickel
61
Zn
Zinc
62
Mo
Molybdenum