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The scale used to measure nutrient strength is electrical conductivity (EC) or conductivity factor (CF). The CF scale is most commonly used in hydroponics. It spans from 0 to more than 100 CF units. The part of the scale generally used by home hydroponic gardeners spans 0-100 CF units. The part of the scale generally used by commercial or large-scale hydroponic growers is from 2 to 4 CF. (strength for growing watercress and some fancy lettuce) to as high as approximately 35 CF for fruits, berries, and ornamental trees. Higher CF values are used by experienced commercial growers to obtain special plant responses and for many of the modern hybrid crops, such as tomatoes and some peppers. Most other plant types fall between these two figures and the majority is grown at 13-25 CF.
--Rob Smith
Wiki User
∙ 13y ago
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When was Palamós CF created?
Palamós CF was created in 1898.
When was Muleño CF created?
Muleño CF was created in 1989.
When was Mora CF created?
Mora CF was created in 1977.
When was Vinaròs CF created?
Vinaròs CF was created in 1965.
When was Alondras CF created?
Alondras CF was created in 1951.
What is a closed angle glaucoma?
bv cf cf cf cf cf cf cfgrertrgsghsh
What is the CF and LCM of W and W?
The GCF and LCM of W and W is the absolute value of W.
What is the pH of a penny?
No pH value, cf related questions on pH of dime-quarter-penny
What is conditions formatting?
Conditions formatting (CF) is a tool that allows you to apply formats to a cell or range of and have that formatting change depending on the value of cell or the value of a formula
What is special about ough?
The letters ough have 10 different pronunciations."through" (cf. true)."thought" (cf. taut)."though" (cf. toe)."cough" (cf. coffin)."rough" (cf. ruffian)."bough" (cf. to bow)."thorough" (cf. about) [British English].
What does -log represent in the pH formula?
It is the negative value of the 10-base logarithmof [positive real number](cf. mathematics)
Why 'Cf' is the symbol for californium?
Cf from CaliFornium
What does cf mean in text messaging?
Cf
When was Palencia CF created?
Palencia CF was created in 1960.
How do 1 Solve for quartiles in a grouped data?
formula in solving quartiles: QK = ([kN - <CF] / FQK)i where in: Q = Quartile k = given value N = Total number of variables <CF = Lower Frequency of Lower Area i = Interval
What you the value of a Winchester model 1886 35-56 cf cal?
0-1000 USD depending on exact configuration and condition.
What is the chemical formula for CF?
CF is the chemical formula.
