June 25 Quiz

1. The leaf on the left is healthy. The leaf on the right is deficient in one nutrient. The plant below is also deficient in the same nutrient. What nutrient does this plant need?

Nitrogen leaves (def on R)half rate N small
2. This canola plant has a nutrient deficiency. What nutrient does it lack?

Sulphur deficiency stem leaf cupping
3. You see symptoms of a nitrogen deficiency in your canola, or because of a good moisture situation, crop yield potential could now outstrip nitrogen availability. You want to top dress nitrogen. The best nitrogen source is...