What high value crops though? Cannabis is the only one. My cousins can't make a $1 profit on the flowers they sell, because the worldwide flower market is low. Tomatoes and peppers are much cheaper to grow in Mexico and Central America, then to even grow in a field here, let alone a greenhouse with all these fancy toys.
You modify your soil as best as you can to deal with the water you are getting. If the water you are getting can't properly support the crop you are growing, you change crops, you don't try to modify the water. Why do you think most forage crops grown in the west are alfalfa or something that can tolerate high alkalinity?
In fact, one of the first points that Tiejens makes in his book is that as a farmer, there is very little you have control over, other than the soil mineral content.
You modify your soil as best as you can to deal with the water you are getting. If the water you are getting can't properly support the crop you are growing, you change crops, you don't try to modify the water. Why do you think most forage crops grown in the west are alfalfa or something that can tolerate high alkalinity?
In fact, one of the first points that Tiejens makes in his book is that as a farmer, there is very little you have control over, other than the soil mineral content.