Q1. Recent discovery of method of reducing salination of soil is
(a) Spreading of husk on the soil
(b) Extensive use of fertilisers
(c) Intensive use of fertilisers
(d) None of the above
(UPSC Prelims 1979)
Answer: (a) Spreading of husk on the soil
Explanation: Salination refers to the accumulation of salts in soil, which hampers crop growth. A recent method involves spreading husk, which acts as a protective layer, reducing evaporation and salt concentration at the surface. This helps in restoring soil health.
