12 Jun Park BIO BI111 – Soil triangle problem
Question
1. Soil triangle problem—given a sample of soil with 60% sand, 10%silt, what is the _____ % clay and what is the name of the soil type?
2. List the 3 major layers of a soil profile and describe the characteristics of each.
3. List the three types of soil found worldwide and briefly describe each.
4. What do the letters NPK on a fertilizer bag label mean?
5. Explain why commercial fertilizers are used in agriculture today and describe at least one problem associated with their use.
6. Describe two benefits of organic farming.
7. What is integrated pest management (IPM)?
8. List and explain three techniques used to control pests that do not involve the use of pesticides.
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