Assume an A horizon depth of 15 cm. A well-drained silt loam soil on an Iowa farm has 3.5% organic matter which is about 5% N. Estimate the kg/ha of nitrogen that this soil horizon will make available for plant use from soil organic matter in one year (without the addition of fertilizer)
A) 88 B) 263 C) 175 D) 17.5 E) 38
A
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The person who maintains a filing system for paperwork is the ________.
A) Owner B) Porter C) Service consultant D) Cashier
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does an HPR valve (Head Pressure Regulating valve) maintain head pressure in cold ambient conditions?
a. Turns off the condenser fan until the head pressure rises. b. Slows down the flow of water through the condenser. c. Backs up refrigerant in the condenser.
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Which part of a synchronizer is splined to a shaft?
A) Speed gear B) Synchronizer sleeve C) Hub D) Synchronizer blocker ring
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Which of the following is the most troublesome form of external noise?
A. Atmospheric B. Human-made C. Space D. Thermal
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