Fertilizer Questions (EB1971e)
After reading "Home Gardener's Guide to Soils and Fertilizers" EB1971 answer these questions:
- Why are NPK the most likely nutrient deficiencies?
- Explain the problem: plants can only take up nutrients in solution; nutrients are in soil minerals and organic matter.
- Why does the presence of clay particles and organic materials have an inordinate importance to a growing plant's nutrition?
- Compare and contrast processed and organic fertilizers.
- How does a chemist (or horticulturist) define a salt?
- The fertilizer package label shows 12-10-15. Explain what that means.
- How much fresh cow manure do you need for your 7' by 7' garden?
- How do you prepare a soil sample for soil testing?
- When is the best time to fertilize?
- Sing the praises of organic matter. Or write down the praises of organic matter.
- Why should you be careful adding to the soil organic materials with a high C:N ratio?
- What cover crop did you grow? Why might a gardener plant cover crops?
- List three ways soil pH influences plant growth.
- What is a good range for soil pH?
- Should lime be considered a fertilizer? Explain. What about sulfur?
- Why don't we worry much about soil salinity on Whidbey island?