Manganese and aluminum can cause toxicity in strongly acidic soils. (True or false?)

Manganese and aluminum can cause toxicity in strongly acidic soils.
 
  Indicate whether the statement is true or false

Question 2

Tissue must be ____________________ before it is analyzed for nutrient content.
 
  Fill in the blank(s) with correct word

Question 3

____________________ testing accurately measures nutrient availability at the time the sample was collected.
 
  Fill in the blank(s) with correct word

Question 4

One method of soil test interpretation involves measuring the ____________________ of exchangeable cations found on the cation exchange sites.
 
  Fill in the blank(s) with correct word