Q. Consider the following statements about Laterite soil:

1. They are not suitable for cultivation without fertilizers and manures.
2. They are poor in organic matter, nitrogen, phosphate and calcium.
3. The humus content of the soil is removed fast by bacteria that thrives well in high temperature.

Which of the above is / are correct?
Answer: All of the above
Notes: The humus content of Laterite soil is removed fast by bacteria that thrives well in high temperature. These soils are poor in organic matter, nitrogen, phosphate and calcium, while iron oxide and potash are in excess. Hence, laterites are not suitable for cultivation; however, application of manures and fertilizers are required for making the soils fertile for cultivation.