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Chapter 32: 12-15

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Biology Homework Chapter 32: Sources of Nutrients


Reading Preparation

Textbook Assignment: Chapter 32: Plant Nutrition and Symbiosis, sections 12-15.

Study Points

Web Lecture

Read the following weblecture before chat: Nutrition in Plants.

Take notes on any questions you have, and be prepared to discuss the lecture in chat.

Study Activity

Perform the study activity below:

Use the plant nutrient removal calculator at Crop Nutrition to determine how quickly different crops and yields pull nutrients from the soil. Record the amounts of each nutrient required for the four crops you survey at 1/3 of maximum yield (the default setting).

  • which crop requires the most nitrogen?
  • which crop requires the most phosphate?
  • which crop requires the most potassium oxide?
  • which crop requires the most sulfur?

Adjust the yield to 50% (half, with the dot at the top of the circle). Can you still grow all four crops?

Adjust the yield to maximum. Can you still grow all four crops?

Check each of the nutrients in the table at the top of the page and explore the information on nutrient use based on plant location? Why are nitrogen, phosphate, potassium oxide, and sulfur important?

What is the difference between macronutrients, secondary nutrients, and micronutrients?

Chat Preparation Activities

Chapter Quiz

Lab Work

Read through the lab for this week; bring questions to chat on any aspect of the lab, whether you intend not perform it or not. If you decide to perform the lab, be sure to submit your report by the posted due date.