There are two common frequencies for applying post-plant fertilizer to greenhouse crops. Both frequencies are effective. These frequencies are _______________ or ______
Fill in the blank(s) with correct word
every watering or weekly.
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What are seven important functions of growing media?
What will be an ideal response?
Which of the following must always be replaced when a retrofit is performed?
A) Refrigerant oil B) Compressor C) Expansion valve D) Condenser
What are two-position controls?
A) Two-position controls will work correctly on either side of the electrical circuit. B) Two-position controls simply stop and start devices to maintain the desired condition. C) Two-position controls can be mounted either horizontally or vertically and still operate correctly. D) Two-position controls incorporate a normal operating setting and an energy-saving economy mode.
_______________ and ____________ pipes should be pitched toward the tank opening to prevent the formation of oil traps.
Fill in the blank(s) with the appropriate word(s).