Question

question 9 (1 point)
the nutrient __________ is extracted using an ammonium acetate solution before being analyzed via flame photometry.

word bank:
ammonium acidic phosphorus potassium mobile potassium

blank 1:

question 10 (1 point)
nitrogen is primarily responsible for which aspect of plant development?

a leaf and stem growth (vegetative growth)
b disease resistance and water regulation
c fruit ripening and sweetness
d root development and seed formation

Explanation:

For Question 9: Ammonium acetate is commonly used to extract mobile potassium from soil, and flame photometry is a standard method for potassium analysis.
For Question 10: Nitrogen is a key component of chlorophyll and proteins, which are essential for leaf and stem (vegetative) growth.

Answer:

Question 9: potassium
Question 10: a. Leaf and stem growth (vegetative growth)