Question

what measures can we adopt to reduce degradation of soil (in long)​

Answer 1

first and main start using only organic fertilizer .
less use of pesticides
less use of inorganic fertilizer etc
every time different types of crops should be cultivated on the same field.

Answer 2

Measure we should adopt to reduce soil degradation are :

We should use organic compounds in fields rather than chemical fertilisers.

We should plant more and more trees so that soil erosion would not take place .

Shifting cultivation should be prevented.