Agronomy Multiple Choice Questions and Answers for Practice

16. Presence of high amounts of which of the following substances is the primary concern related to the quality of ground water used for irrigation:

1. coli bacteria
2. salts
3. pesticide residues
4. nitrates

17. Prussic acid poisoning is a potential problem for livestock grazing which of the following forage crops?

1. alfalfa
2. winter wheat
3. tall fescue
4. sorghum stalks

18. Sprinker irrigation systems have an advantage over furrow irrigation systems for all of the following except:

1. more uniform application of water with sprinkler
2. less energy required to pump and distribute water with sprinkler
3. lower labor costs with sprinkler
4. less land leveling needed with sprinkler

19. Syngenta and Monsanto both began selling all soybean seed by count in 2011, and other companies are expected to move quickly to bagging soybean seed by count. The standard seed count for these soybean seed bags is:

1. 80000
2. 100000
3. 140000
4. 160000

20. The greatest yield reduction due to drought stress in soybean varieties typically grown in Kansas= generally results when the stress occurs during the:

1. seedling emergence stage resulting in decreased plant population
2. early vegetative stage resulting in shorter plants with less leaves
3. early flowering stage resulting in poor pollination of the early flowers
4. pod development stage resulting in high pod abortion and reduced pods per plant

21. The phrase dusting it in when used in wheat production refers to:

1. planting the seed very deep into a layer of soil moisture to get below a dry surface layer
2. planting the seed at recommended depth into a loose, well-tilled soil with good moisture
3. planting the seed shallow into a dry soil surface hoping for a rain so it can germinate later
4. planting the seed at recommended depth with a no-till drill which cuts through the residue left from a previous crop to get good seed-to-soil contact

22. The practice of no-till planting grain sorghum into the stubble of a wheat crop immediately after wheat harvest in late June is called:

1. fallowing
2. intercropping
3. double cropping
4. strip cropping

23. The top two crops in value in the US and Kansas are:

1. corn and soybeans in the US; wheat and soybeans in Kansas
2. corn and wheat in the US; corn and wheat in Kansas
3. wheat and soybeans in the US; corn and wheat in Kansas
4. corn and soybeans in the US; corn and wheat in Kansas

24. The wheat diseases soil borne mosaic, streak mosaic, and barley yellow dwarf are all caused by:

1. viruses
2. bacteria
3. nematodes
4. fungi

25. To slow the development of insect resistance (Insect Resistance Management) in crops genetically engineered with Bt technology, farmers have been required to plant a portion (usually 20%) of the field to non-Bt hybrids as a refuge. Some new corn hybrids like Pioneer Optimum® AcreMax™ now include RIB technology which means:

1. There is no longer any refuge requirement since there are multiple resistance genes in these new hybrids (stacked traits)
2. The refuge requirement is reduced to 5% of the field that must be planted in a separate area
3. The non-BT seed is mixed in the bag, thus no separate refuge area needs to be planted
4. The refuge requirement has been increased to 30% of the field since rootworm resistance was reported in the Corn Belt last year

26. Which of the following conditions would not likely be a result of using a no-till system that leaves crop residue on the soil surface versus incorporating the residue with tillage?

1. more water infiltration
2. less overwintering of insect and disease pests
3. cooler soil temperature
4. less wind and water erosion

27. Which of the following is the most common liquid fertilizer carrier that supplies both nitrogen and phosphorus with an analysis of 10-34-0?

1. urea
2. urea-ammonium nitrate (UAN)
3. di-ammonium phosphate (DAP)
4. ammonium polyphosphate (APP)

28. Which of the following is the predominant cool season, introduced, perennial forage grass crop grown in Kansas for pasture and hay?

1. alfalfa
2. big bluestem
3. bermudagrass
4. smooth bromegrass

29. Which of the following Kansas crops is used as grain for human food or livestock feed, plus it is commonly used to produce oil, high fructose sweetener, biofuel (ethanol), silage, and industrial products such as biodegradable trash bags and packing peanuts?

1. alfalfa
2. corn
3. wheat
4. sunflower

30. Which of the following terms or acronyms found on a pesticide label defines the protective equipment (type of clothing, gloves, goggles, respirator, etc.) that must be used by the person napplying the pesticide to insure their safety and avoid risk of overexposure?

1. EPA number
2. REI
3. PPE
4. active ingredient