Wheat: Establishment and Fertilization.  Unit IV-2, 20 pts.

 

Directions.  Print this out first, then follow the links at: Wheat Production by MSU to find

                    clues to answer the following questions. 

 

1. The optimum time to plant wheat for grain is:

            A. about 2 weeks before the average first frost

            B. about 2 weeks after the average first frost

            C. about 2 weeks before the average last frost

            D. anytime before Dec. 25

 

2. The problem with planting wheat too early is:

            A. N fertilization timing                           B. the Hessian fly

            C. barley yellow dwarf mosaic virus                 D. all of the above

 

3. If you lived near the coast in S. MS, you would plant wheat about when compared to

    N. MS?

            A. about one month earlier                            

B. about 1 month later

            C. about the same time but with different varieities

            D. in the spring rather than fall

 

4. The optimum seeding depth for wheat is about:

            A. 0.25 – 0.5 in                                     B. 0.5 – 1.0 in

            C. 1.0 – 2.0 in                                                 D. 2.0 – 4.0 in

 

5. If you wanted to a stand of about 1 million wheat plants and expected a low 80%

    establishment success, you would need to sow about:

            A. 1 million seeds/acre                                B. 1.1 million seeds/acre

            C. 1.25 million seeds/acre                                D. 2 million seeds/acre

 

6. When planting wheat later than normal:

            A. increase seeding rates a little                  B. decrease seeding rates a little

            C. plant seeds 3.0 in deep or greater             D. broadcast seeds rather than drill

 

7. The ‘boot’ stage of wheat is:

            A. growth stage 3                                      B. growth stage 5

            C. growth stage 8                                      D. growth stage 10

 

8. Tillering of wheat ends at growth stage:

            A. 1                             B. 2                              C. 3                             D. 8

 

9. If you were planting wheat in a heavy clay soil in the Delta region, what would be a

    good variety of wheat to plant?

            A. Asgrow 444                                         B. Delta King 1551W

            C.  Dixie 700                                                         D. Genesis 109

10. If P, K and lime are needed based on soil tests, the best time to apply them is:

            A. in the fall before planting                         B. at growth stage 3

            C. in the spring before sheath extension            D. anytime you want

 

11. Wheat is more sensitive to damage by snow geese at growth stage:

            A. 1                             B. 2                              C. 3                             D. 6

 

12. A certain amount of cold weather needed by wheat in order to form a seed head is

      termed:

            A. anthesis                                                            B. genesis

            C. DD40 number                                      D. vernalization

 

13. Suggested fall N fertilization rates for wheat following  a soybean crop are:

            A. 0 lbs N/acre                                      B. 20-30 lbs N/acre

            C. 40-50 lbs N/acre                                       D. 60-90 lbs N/acre

 

14. The initial topdress of N fertilizer in the spring should occur at:

            A. growth stage 2                                      B. growth stage 8

            C. growth stage 6                                      D. growth stage 3

 

15. A general N recommendation (total) for wheat in a high yielding clay soil is:

            A. 40-50 lbs N/acre                                       B. 90-110 lbs N/acre

            C. 120-140 lbs N/acre                                      D. 180-200 lbs N/acre

 

16. If using liquid N (N-sol, 32%) fertilizer, it is recommended to limit rates for

      any application to about:

            A. 10 lbs N/acre                                            B. 50 lbs N/acre

            C. 75 lbs N/acre                                            D. 120 lbs N/acre

 

17. List four other interesting things you have learned about wheat from the readings: