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If there is 6 mm of polyethylene, how many inches were there?
.006"
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How can fiberglass be purchased?
- years of warranty
- weight (4 or 5oz)
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What thickness does glazing material come in?
4"-8" thick
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How do you convert cool cells to aspen?
1.6 x the number of square feet
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What is the preferred fan to pad distance?
100-225 ft
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What is the minimum pad height for a cooling system?
24in
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If 100,000 CFM is required and you have 5 fans, how much CFM would each fan have to produce?
20,000 CFM
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What is the spacing between each fan?
no farther than 25ft apart from the center
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If the total pad area is 400 sq ft and the length is 100 sq ft, how tall would the pads have to be?
4 ft
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If the elevation is 1.2, the factor of light is 1.5 and the temperature is 1.0, what is the factor of the house?
F house=1.8
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If the green house is 50 ft wide, 100 ft long and has a F velocity of 1.7, what is the CFM requirement?
50 x 100 x 1.7 x 8.0*= 68,000 CFM
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What is the length of a chrysanthemum cutting?
5 inches long
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How long does root formation of a chrysanthemum take?
3 weeks
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How long does 14, 14, 14 osmocat last?
3-4 months
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When growing chrysanthemums, how many stems are you trying to get?
3-5 per cutting
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What is the night time temperature of a chrysanthemum?
65*
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Poinsettias and chrysanthemums are short day plants. To form roots they need what kind of photoperiods?
long day
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Is corn a long day or short day plant?
neutral
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What chemical makes pink hydrangeas blue?
aluminum sulfate
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What is the pH of sphangnum moss?
3.5
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What size should the bud be when you disbud a chrysanthemum?
1/8" to 1/4" in diameter
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How many weeks of short day photoperiods does it take to bring chrysanthemum plants to flower?
9-11 weeks
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If there is a 500 sq ft aspen pad area, how many square feet of cool cell is required?
500 x .63*= 315 sq ft of cool cell
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What is more efficient on a square foot basis?
cool cell
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What is the pH of pearlite?
7.0
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How much nitrogen does peat moss have?
less than 1%
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What disease attacks seedlings and can be controlled by sphangnum moss?
damping off
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Will light interruption keep a flower from growing?
yes
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What is CFM?
cubic feet per minute
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As light density increases, what does the light factor do?
decrease
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If you want to give plants shade and reduce water loss, what kind of structure would you use?
a lath house
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What temperature is used to expand vermiculate?
2,000*F
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Does Jiffy mix contain fertilizer?
no
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Where can you order Poinsettia cuttings?
Paul Ecke, Encinitas, CA
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Are chrysanthemum cuttings long day or short day plants?
short day
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Which is more resistant to hail, fiberglass or lexan?
lexan
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