17. A seeder can plant a 12 ft wide strip of wheat at once and your tractor travels at 3 mph. If you add an additional 10% of time for turning around, loading seed, and getting to and from the field, how long will it take to plant 50 acres of seed? a. 9.7 hours b. 11.5 hours c. 12.65 hours d. 14.2 hours 18. You have a 20 ft. wide boom sprayer mounted to the back of your tractor. If your sprayer is calibrated to apply 5 gallons of pesticide per minute, how fast should you drive the tractor to accurately apply 50 gallons per acre? (There is 5280’ in one mile) a. 1.5 mph b. 2.0 mph c. 2.5 mph d. 3.0 mph 19. You have a corn field with rows spaced 24" on center. You take counts from 5 spots in the field. At each of the 5 spots, you count the number of plants in 20 row feet, and find that there are a total of 210 plants in your total sample area. What is the stand density per acre of this field? a. 45,738 b. 21,780 c. 33,478 d. 39,367 20. The label on a bag of seed will often provide which of the following: a. Germination rate b. Date seed was tested for germination c. Seed per pound or ounce d. Seed variety name and lot number e. All the above f. None of the above

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