I used commercial lime on acidic soil @ 5% and 10% on w/w basis in pot experiments. The soil pH improved from 5.5 to 6.5 and rice and wheat crops grew successfully. I fear that Mg dominance may add hardness to soil because of low solubility problems.
Hello,
In principle 0.9g CaO equivalent is required to raise soil pH by 1 unit, the same can be applied to your experiment. As for the risk of creating nutritional imbalances regarding Ca:Mg ratios, I believe that it is related to the level of exchangeable Ca/Mg already present in the soil since low pH does not necessarily imply low Ca and Mg.
You really must to do a pH soil analysis and use the technical recommendation for correct the soil acidity. You must consider how much soil you have in the pot, the pot environmental is different on the field.
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