Canola Watch 2023 exam – Section 5 – Canola Digest Science 2023

The Canola Watch 2023 annual exam for Certified Crop Advisors and Certified Crop Science Consultants (and anyone else who wants to enhance their agronomy skills) has five sections:

• Soil & Water (1.0 CCA credit in soil and water management)
• Diseases, Weeds and Insects (1.0 CCA credit in integrated pest management)
• Canola Watch Fundamentals (0.5 CCA credit in integrated pest management and 0.5 CCA credit in crop management)
• Agronomy tips from new canola multi-media (1.0 CCA credit in crop management)
• Canola Digest Science 2023 (1 CEU – 0.5 in integrated pest management and 0.5 in nutrient management)

Find them all here.

Customize the exam based on credits you need. Credits will apply in either 2023 or 2024, depending on when you pass each section. For those who pass, Canola Watch will submit names and program ID numbers to the program to have the credits counted.

For questions or additional information on this exam, please contact Jay Whetter at 807-466-3025 or whetterj@canolacouncil.org.

Section 5. Canola Digest Science 2023

Canola Digest magazine's annual Science edition summarizes canola research projects completed through the previous year. CCAs who take this section will experience fresh new canola research results that will inform the Canola Council of Canada's most up-to-date canola agronomy recommendations. Hopefully these 10 questions inspire them to read the whole Canola Digest Science 2023 edition online at canoladigest.ca.

Achieve a minimum score of 70 per cent (7 out of 10) to receive 1 continuing education credit (CEU) for Certified Crop Advisers (CCA) or Certified Crop Science Consultants (CCSC).

Specific credits for CCAs: 0.5 in nutrient management, 0.5 in integrated pest management

CCA tracking number SS 57907.

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About you

1. REQUIRED - Your full name:

2. Your CCA number: (Leave blank if not applicable)

3. Your CCSC number: (Leave blank if not applicable.)

4. REQUIRED - Email address:

5. Phone number:

6. REQUIRED - What region best describes your work territory?

Manitoba

Saskatchewan

Alberta

Other Canadian province

Outside Canada

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Uncategorized

7. The Canola Digest Science 2023 article "Faster ground cover can increase yields" describes a project that examined how in-row seed spacing and spatial pattern affect canola yield. The project concludes that to maximize yield in canola, growers should seed at least __(blank 1)__ seeds per square metre and have row spacing of __(blank 2)__ cm or less. Which sequence of numbers properly fills the two blanks? (The first number is blank 1, the second number is blank 2.)

80 and 40

100 and 50

60 and 30

40 and 20

8. The article “How to improve seed distribution with air drills” summarizes a project about understanding grain pneumatic conveying in seeding equipment. The article makes four recommendations about air drill set up and repair. What is the first recommendation?

Manufacturers’ settings for hose pathway and air pressure are not adequate for canola.

Replace secondary hoses with hoses of the same length and diameter as the original to maintain consistency.

Make sure every hose leaving the manifold is the same length to achieve consistent seed counts per hose.

Hose diameter doesn’t matter as long as air pressure is at least 2,800 rpm.

9. “New nutrient uptake and removal guidelines” for Western Canada include estimates for nitrogen, phosphorus, potassium, sulphur, boron, copper and zinc. What is the average removal of sulphur per bushel of canola?

0.63 pounds

0.19 pounds

2.01 pounds

1.15 pounds

10. “Deep banding and EEFs reduce N loss in light soils” summarizes a project about nitrogen practices for higher yields and lower greenhouse gas emissions. It concluded that for urea, the deep band treatment had lower emissions than the shallow banding treatment, and adding an inhibitor reduced losses even further. How deep was the “deep” band used in this study?

3-4”

2-3"

4-5”

5-6”

11. “Spore threshold for sclerotinia stem rot risk” describes a project that examined risk factors, including spore counts and relative humidity. Results showed that relative humidity of ___ per cent or higher is required for at least 21 hours per day to elevate disease risk.

80

60

90

70

12. “Advancing blackleg and verticillium stripe management” includes a short summary of a project to understand the critical infection window for blackleg. It identifies the critical canola stage where infection is most likely to cause yield loss. What is the stage?

Cotyledon

Stem elongation

Late flowering

First true leaf

13. “Hydrated lime treatments reduce clubroot infection” describes a project examining treatments to manage clubroot. The project included growth room studies to assess rotation crops for their ability to reduce P. brassicae resting spore concentrations in soil. Of the following four annual crops examined, which one was the best at reducing spores?

Pea

Wheat

Barley

Soybean

14. “Strategies to improve flea beetle control” summarizes a project comparing various practices for their effect on flea beetle damage. Which of the following is a key result?

Higher seeding rates resulted in a more flea beetles per plant.

Seed treatments were more effective in reducing flea beetle defoliation than the foliar spray.

Whole plant damage increased when spiders and ground beetles were present along with flea beetles.

Striped and crucifer flea beetles caused the most cotyledon damage at 18°C.

15. ”More plants equal more consistent yield” summarizes a study comparing combinations of seeding rate, harvest timing and cultivar maturity (early or late). Looking at the graph included with the article, which combination produced the highest yield?

Early-maturing cultivar, 120 seeds per square metre, swathed at 90% seed colour change

Late-maturing cultivar, 180 seeds per square metre, straight combined at 10% seed moisture

Early-maturing cultivar, 60 seeds per square metre, straight combined at 5% seed moisture

Late-maturing cultivar, 120 seeds per square metre, swathed at 60% seed colour change

16. “Expansive study recommends steps to boost NUE and canola yield” summarizes a project to improve nitrogen use efficiency and soil sustainability in canola production across Canada. Results include recommendations for nitrogen rates. Researchers recommend applying 145-165 kg/ha (130-147 lb./ac.) of nitrogen in the Black soil zone and _________ kg/ha in the Brown soil zone. (Fill in the blank.)

125-140

115-125

85-100

100-115

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