1. Advance Plant Nutrition
Assignment # 2
Questions:
1. Discuss how soil pH affect the availabilityof nitrogen,
phosphorusand potassium?
2. What Cation Exchange? Why is it important in plant
nutrition? What do typical CEC values tell us about fertility
in the soil?
3. Although plantscontainonly a small amount of potassium
by weight, this element is still important. Why? What
happensto plantswhich cannot absorb required amount
of potassium?
4. Describe humus to organic matter? Differentiate their
function.
5. What is the effect of saltwater on plantgrowth?
