Sodium Bicarbonate well water

Dear sir’s,

My well water has sodium bicarbonate, when irrigated and dried the sand become very hard or like stone. My plants are not growing well. Please advice me.

I tested the water and result is :

Ph : 7.7
Bicarbonate : 5.6
Chloride : 1.4
Calcium : 1.1
Magnesium : 0.5
Sodium : 5.32
Pottasium : 0.08
SAR (sodium absorption ratio) 4.0
RSC  (residual sodium carbonate) 5.97

Type : C1S1R3 Na(HCo3)2

Please advise me if you have any suggestions.

Thanks

Dinakar