Q122
Which of the following nutrients is available at neutral pH value?
A.
Aluminium
B.
Iron
C.
Calcium
D.
Phosphorus
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Phosphorus is the nutrient available at a neutral pH value. Soils with pH values between 6 and 7.5 are ideal for phosphorus availability, while pH values below 5.5 and between 7.5 and 8.5 limits phosphorus availability to plants due to fixation by aluminium, iron or calcium.