Every time I've seen an underfed plant the whole entire plant seemed to yellow. But in that last pic you can see some newer growth is yellowing and burning.
From my limited knowledge bicarbs in well-water over 100 ppm are bad. I'm three times that. Here's a little read:
bicarbs.
And from an article I can't seem to find now:
"Bicarbonates
The bicarbonate level of water is often overlooked in irrigation water analysis. As soils dry, the bicarbonates will precipitate with calcium, reducing calcium availability and increasing the level of sodium relative to calcium. This will lead to the development of a thin surface layer that can impede water infiltration and increases water runoff. Bicarbonate has also been shown to be toxic to roots and reduces root growth and the uptake of phosphorus and many of the micronutrients. Bicarbonate levels above 100 ppm are sufficient enough to cause concern. Concentrations greater than 200 ppm may pose a potential hazard. Levels in the Missouri River valley wells are usually high.
Since bicarbonates react with calcium to form calcium carbonate and render the calcium unavailable in high pH soils. Amendments that are acid forming will neutralize the bicarbonate and are recommended to offset the ill effects. Gypsum, although not acid forming, is effective in supplying soluble calcium to react with the bicarbonate or to replace calcium that has been removed from soil solution by the bicarbonate."
We roughly go through 500-600 gals a day. I really cant afford a $2000 RO filter atm.
