By adding some bases like slaked lime it can neutralize the effect of acids in the soil.

he can use all the bases like lime and some other kinds of things.

the excessive use of fertilizers and chemicals had converted the soil into acidic form so he should stop using the fertilizers and chemicals instead he can use all natural fertilizers and chemicals like natural manure and natural composted soil.

hope so my answer is useful..........^_^  !!!!
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