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Agronomy Quiz 1 (30 MCQs)

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1. Name the condition in which stalks or stems break or fall over above the soil surface because of weak stalks, weak roots, damage, or weather events.
2. What is the key benefit to banding phosphorus fertilizers?
3. Which of the following definitions best describes a petiole?
4. A wheat farmer is budgeting expenses for his coming growing season as this time he projects his total expenses to be $ 412.80 per acre. His average wheat yield is 80 bu/ac. What is his breakeven price per bushel?
5. Which system uses a constellation of orbiting satellites to identify a location on Earth based on longitude and latitude coordinates along with altitude?
6. Compaction is the reduction of:
7. Plant diseases occur when the following occur at the same time:
8. What is a horizontal layer of soil, created by soil forming processes, that differ in physical or chemical properties from adjacent layers called?
9. Soil samples for distinctly different areas of the field should be (i.e. different soil types or hill tops vs. bottom lands):
10. When do broadcast applications of dry fertilizer become plant available?
11. What is the conversion of ammonium to nitrate known as?
12. Growing two or more crops together in the same field at the same time is known as?
13. At which stage of growth should plant tissue samples should be taken?
14. How does soil texture influence the development of soil compaction?
15. ..... is adsorbed as a cation and is part of the chlorophyll molecule.
16. A sodic soil is characterized by having a disproportionally high concentration of what exchangeable cation in the Cation Exchange Capacity (CEC) complex?
17. ..... is an eroded material deposited by running water including gravel, sand, silt, and clay.
18. UAN fertilizer at 28% nitrogen costs $ 226.50 per ton. The liquid fertilizer weighs 10.67 pounds per gallon. What is the per pound cost for the nitrogen?
19. Of soil compaction severity occurs with the ..... tire pass although the depth of the compaction is determined by the ..... axle load.
20. What causes clay soils to often drain slower than loam soils following heavy rain or irrigation?
21. Select the condition that could help reduce pesticide volatilization.
22. What does IPM stand for?
23. What is the growth of a plant toward any stimulus is called?
24. The point at which soil holds moisture so tightly that plants cannot extract it is called?
25. What is the starting salary for an agronomist?
26. Which type of insecticide moves throughout the plant?
27. Traci is making plans to seed her field to winter six-row malting barley on her farm in Maryland. The field is capable of producing 135 bu/acre under irrigation. The field has a center pivot irrigation system with eight 156 ft spans and an end gun that effectively reaches 50 ft. Traci will plant in concentric circles under the pivot and leave the dry corners fallow. She is targeting 1.25 million plants per acre, the seed she had purchased has 13, 500 seeds per pound and 92% germination. Barely weighs 48 pounds per bushel. Total nitrogen for the crop will be 1.2 pounds of nitrogen per bushel of grain. She plans on applying 30 pounds of nitrogen broadcast preplant and the remainder in two spring (top-dress) applications. Soil tests were used to make fertilizer recommendations, the recommendations call for 83.7 pounds of P2O5 and 47.3 lbs/ac K20 to be broadcast preplant.What is the area of Traci's field?
28. What are national regulatory agencies regulating manure applications most concerned about?
29. Approach Prima Fungicide is used at the rate of 6.8 fl oz/ac on soybean for the control of Frog Eye and Brown Spot. How many acres will a 2.5-gal jug treat?
30. What do the 4R's of fertilizer application refer to?
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