What is the cause of thatch? How can thatch buildup be prevented and controlled?
What will be an ideal response?
The plant organic matter that is not decomposed between the turfgrass and the soil
surface is called thatch. Thatch is caused by an accumulation of excess grass stems,
stolons, rhizomes, and roots in the turf. It is important to note that grass clippings do
not contribute to thatch; rather, thatch is caused by overfertilization. Therefore,
maintaining a moderate fertilization program will prevent thatch.
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At full-load torque, the motor speed is 580 rpm. A FWM converter drives the motor. Calculate the duty ratio that limits the dynamic braking current to twice the rated value.
A 60 Hz, 480 V, three-phase, Y-connected induction machine has the following
parameters:
If you want to take off acrylic nails you should:
What will be an ideal response?
In areas where the climate is mild, llamas and alpacas require little or no _____.
Fill in the blank(s) with the appropriate word(s).
What statement is true concerning lifts?
A. Automotive lifts make work easier. B. Double post lifts use one hydraulic cylinder. C. Scissors lifts are typically older lifts. D. Single post lifts are designed for brake work.