Lesson plan

Noruron

Noruron (or norea) is a preëmergent urea herbicide active ingredient. It is considered obsolete, but may still be used. Introduced in the US in 1962, was used to control grass weeds and broadleaf weeds on crops including broomcorn, cotton, potatoes, sugarcane, spinach, soybeans and sorghum.

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Article summary

Noruron (or norea) is a preëmergent urea herbicide active ingredient. It is considered obsolete, but may still be used. Introduced in the US in 1962, was used to control grass weeds and broadleaf weeds on crops including broomcorn, cotton, potatoes, sugarcane, spinach, soybeans and sorghum.

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  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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