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1. Conditions which favor volatile losses of nitrogen as ammonia include ___ _
No winds
High temperature
High soil CEC
Low soil pH
2. When sampling a manure pile for analysis, how many samples is enough?
One
Seven
Enough to assess manure variability
A dozen
3. Which of the following is not part of the purpose of a nutrient management plan?
Improve soil productivity
Optimize yield
Minimize water contamination
Improve atmospheric conditions
4. Which of the following best describes adaptive nutrient management?
Adjust nutrient management for acceptable yields and profits
Resist changing nutrient management
Adjust nutrient applications for highest yields
Adjust nutrient applications to optimize yields and profits
5. Which of the following is a chemical uptake form of potassium?
K-
KO
K2O
K+
6. If a manure contains 0.2% total P and 50% of the P contributes to soil test P, how much would soil test P increase if 5 ton/acre of the manure is applied to a soil?
4 lb/acre
20 lb/acre
2 lb/acre
10 lb/acre
7. Which of the following conditions allow N-based manure applications?
High P index
Low soil N
Low P index
High soil N
8. Which of the following times of nutrient application is likely to use the least tractor time?
Fall
Preplant
Post emergence
At planting/preemergence
9. At which of the following plant growth stages would you expect the highest demand for soil nutrients?
Germination
Late reproductive
Mid vegetative
Early seedling
10. Which of the following nitrogen fertilizer sources has the least% nitrogen
Anhydrous ammonia
Ammonium sulfate
Urea
Ammonium nitrate
11. The chlorophyll meter determines ___ sufficiency in a crop.
N
K
P
Ca
12. Which of the following nutrient placement methods is common for small grains and forages?
Side-dress
Broadcast incorperated
Injection
Top-dress
13. At which of the following soil pHs would phosphorus be most available for plant uptake?
5.8
7.8
6.8
4.8
14. Which of the following is the least available source of nutrients?
Organic matter
Soil minerals
Soil solution
Cation exchange sites
15. Which of the following fertilizers has the greatest potential to decrease soil pH
Ammonium nitrate
Potassium chloride
Calcium nitrate
Triple super phosphate
16. Split applications of nitrogen fertilizer ____ as compared to a single application of the same amount of nitrogen.
Reduce leaching losses
Reduce plant uptake
Increase volatilization
Increase denitrification losses
17. Which of the following is the best way to maximize plant available Nin manure?
Surface application
Composting
Sprinkler application
Incorporation
18. Which of the following soils would have the highest lime requirement to meet a target pH of 6.5?
pH 5, 10% clay, 1% OM
pH 6, 25% clay, 2% OM
pH 5, 25% clay, 2% OM
pH 6.5, 60% clay, 2.2% OM
19. Lime passing through which of the following mesh sizes would be of greatest benefit in neutralizing soil acidity?
40
10
60
20
20. A comprehensive nutrient management plan (CNMP) should discuss ____ _