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
2
Q
signs of deficiency:
- chlorosis on older leaves first
- stunted growth
- lack of vigorous growth
A
Nitrogen
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
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
5
Q
signs of deficiency of ___
- might be some purple discoloration
A
Phosphorus
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
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
8
Q
most prevalent cation in soil after H
A
calcium
9
Q
essential functions of ___:
- structural support
- strengthens cell membranes and cell walls
- essential for cell division and elongation
A
Calcium
10
Q
signs of __ deficiency:
- spindly growth
- very rare
A
calcium
11
Q
essential functions of ___:
- central atom in chlorophyll
- component in protein synthesis
- facilitates energy transfers in photosynthesis
A
Magnesium
12
Q
signs of __ deficiency:
- interveinal chlorosis
- symptoms similar to those of N
A
Magnesium
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
14
Q
factors affecting release of controlled release fertilizers (CRF’s)
A
- coating
- moisture
- substrate
- temperature
15
Q
A