Nutrient Management

1. Nutrient concentrations ____ change with depth.

2. Which of the following is not used in determining a lime recommendation?

3. If a nutrient is released to the soil during decomposition of an organic material, _____ has occurred.

4. Which of the following micronutrients is more available at pH 7 than at pH 5?

5. How many lbs of 10-20-10 should be applied to an acre if the fertilizer recommendation is 60 lbs of P2O5?

6. Sinkholes in a Karst topography area can serve as conduits for N and P movement to _____

7. Which of the following is a chemical uptake form of potassium?

8. If a manure contains 1.9% P on a dry basis and is 60% solids, what is the "as is" (wet basis) P concentration?

9. The portion of a fertilizer that easily dissolves in water is ____ _

10. Which of the following soils would have the highest lime requirement to meet a target pH of 6.5?

11. At which of the following soil pHs would phosphorus be most available for plant uptake?

12. How many lbs of 10-20-10 should be applied to an acre if the fertilizer recommendation is 26 lbs of P?

13. Which of the following is not an essential nutrient for plants?

14. 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?

15. Which of the following is the best way to maximize plant available Nin manure?

16. Conditions which favor volatile losses of nitrogen as ammonia include ___ _

17. If a soil contains 40 lb P/acre, it contains __ ppm P

18. Which of the following conditions allow N-based manure applications?

19. Which of the following is not part of the purpose of a nutrient management plan?

20. The final step in a nutrient management plan is ____.