CERTIFIED CROP ADVISOR EXAMINATION TEST
2026 QUESTIONS WITH CORRECT ANSWERS
GRADED A+
● What is the soil uptake form(s) for P? Answer: phosphate ion
● What is the soil uptake form(s) for K? Answer: potassium ion
● What is the soil uptake form(s) for Ca? Answer: calcium ion
● What is the soil uptake form(s) for Mg? Answer: magnesium ion
● What is the soil uptake form(s) for S? Answer: sulfate ion
● What is the soil uptake form(s) for B? Answer: boric acid or borate
ion
● What is the soil uptake form(s) for Cl? Answer: chloride ion
● What is the soil uptake form(s) for Cu? Answer: cupric ion
, ● What is the soil uptake form(s) for Fe? Answer: Primarily ferrous ion;
some ferric ion
● What is the soil uptake form(s) for Mn? Answer: Primarily
manganous ion
● What is the soil uptake form(s) for Mo? Answer: molybdate ion
● What is the soil uptake form(s) for Ni? Answer: Nickel
● What is the soil uptake form(s) for Zn? Answer: zinc ion
● Is N mobile in the plant? Answer: yes, N is mobile
● Is P mobile in the plant? Answer: yes, P is mobile
● Is K mobile in the plant? Answer: yes, K is mobile
● Is Ca mobile in the plant? Answer: no, Ca is not mobile
● Is Mg mobile in the plant? Answer: yes, Mg is mobile
● Is S mobile in the plant? Answer: no, S is not mobile
2026 QUESTIONS WITH CORRECT ANSWERS
GRADED A+
● What is the soil uptake form(s) for P? Answer: phosphate ion
● What is the soil uptake form(s) for K? Answer: potassium ion
● What is the soil uptake form(s) for Ca? Answer: calcium ion
● What is the soil uptake form(s) for Mg? Answer: magnesium ion
● What is the soil uptake form(s) for S? Answer: sulfate ion
● What is the soil uptake form(s) for B? Answer: boric acid or borate
ion
● What is the soil uptake form(s) for Cl? Answer: chloride ion
● What is the soil uptake form(s) for Cu? Answer: cupric ion
, ● What is the soil uptake form(s) for Fe? Answer: Primarily ferrous ion;
some ferric ion
● What is the soil uptake form(s) for Mn? Answer: Primarily
manganous ion
● What is the soil uptake form(s) for Mo? Answer: molybdate ion
● What is the soil uptake form(s) for Ni? Answer: Nickel
● What is the soil uptake form(s) for Zn? Answer: zinc ion
● Is N mobile in the plant? Answer: yes, N is mobile
● Is P mobile in the plant? Answer: yes, P is mobile
● Is K mobile in the plant? Answer: yes, K is mobile
● Is Ca mobile in the plant? Answer: no, Ca is not mobile
● Is Mg mobile in the plant? Answer: yes, Mg is mobile
● Is S mobile in the plant? Answer: no, S is not mobile
