Lime Requirement
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It neutralizes soil acidity, raising pH toward the range where most crops take up nutrients efficiently. Below the target pH, nutrients like phosphorus become less available even when they are present in the soil.

Soils with higher clay or organic matter content have more buffering capacity, meaning they resist pH change and need substantially more lime to shift by the same amount compared to sandy soils. This is why a soil test's buffer pH matters more than the water pH alone.

Yes — finer ground lime reacts faster and more completely, while coarse or pelletized lime reacts more slowly and may need a higher application rate to achieve the same effect within one season. Product labels usually give an effective calcium carbonate equivalent to adjust for this.

Lime needs to react with soil moisture and mix into the root zone, so a meaningful pH shift typically takes several months to over a year, especially with surface application on no-till fields. Incorporating lime into the soil speeds up the reaction considerably.

For large recommended rates, splitting the application over two seasons is often preferred to avoid over-liming and temporarily locking up micronutrients like manganese and zinc. Your soil test lab typically flags when a split application is advisable.