Chris planted 350 acres in wheat. He chopped the corn stubble with a 15-foot roller cutter traveling 4.6 miles per hour. The soil test showed she needed to apply 100-75-80 units of fertilizer per acre. She is going to top-dress with liquid nitrogen in the spring using 32-0-0 at $368.42 per ton. Liquid nitrogen weighs 10.67 pounds per gallon. At planting, she used 18-46-0 DAP at $705.25 per ton and 0-0-60 muriate of potash at $568.75 per ton. She had a yield of 64 bushels per acre. She used a combine with a 20-foot header traveling at 4.8 miles per hour. It took an extra 12 percent of the traveling time to turn and empty the combine. She has a grain bin 36 feet in diameter and 22 feet to the roof 6.4 feet high. She can fill the roof to 82 percent of its capacity.
a. How many hours did it take to chop the corn stubble?
b. How many tons of fertilizer were applied in the fall?
c. How many tons of liquid nitrogen were applied in the spring?
d. What was the cost of the fertilizer?
e. How many hours did it take to combine the wheat?
f. Was she able to store the wheat in the grain bin? Explain.
a. 42 hr
b. 51.8 tons
c. 38.8 tons
d. $47,646.21
e. 33.6 hr
f. 3,061 bu
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