Problem Set 3 Q2

Hi Maja,

On Problem Set 3, I indicated that only inorganic P would be plant available (i.e., #2e - False) but this response was marked wrong. I am confused.

Thanks!

Prob Set #3 Q2e) Organic residues are a major source of plant available P in soil. The key word is source; i.e. the question does not say that organic P is plant available but that plant available P is derived from organic residues.