Hello everyone, 


My dataframe (Soil Type) looks something like this

Granitic Hills 16-20 PZ
Loamy Upland 16-20 PZ
Sandy Loam Upland 12-16 PZ / Sandy Loam, Deep 12-16 PZ
Loamy Upland 12-16 PZ / Sandy Loam Upland 12-16 PZ
Loamy Upland 16-20 PZ

I want to separate them at "/", but when there is just one type, I want "NA" in the second column, How can I do that ??

Thank you
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