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| If your high ph is caused by sodium, then you should run a search containing the words " San Joaquin Valley, gypsum, sodium, and leaching" . You will find studies going back 100+ years. California's central valley is one of the most productive areas in the US, despite a serious alkali problem. Tiling is not possible in most cases. The ground has little fall, plus any runoff will create a bureaucratic nightmare and have the authorities circling like buzzards over roadkill. If there is a tiled field within 20 miles of me, I do not know where it is. The sodium here must be leached down, and gypsum works here. I do not know if it will work in your case, or if it will make economic sense. I can remember only one time in twenty years that we applied less than 1 ton/acre, and three tons/acre of 55% gypsum is common. Lime is rarely used here. If you decide to use gypsum, remember that all gypsum is not the same, and none of it can be spread evenly over 30 ft centers. We often use 25 feet swaths. We use gypsum on our farm, and have noticed a surprising difference in effectiveness between gypsum from different mines. | |
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Anyone use gypson for high ph?
