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| We have done replicated research on locally sourced pelletized lime vs locally sourced ag lime, and we didn't see any difference in pH adjustments between the two products. For example if you spread 2000 lb of AgLime, you would need to apply 2000 lb of pelletized lime - to raise the soil pH a similar amount (as long as the RNV is similar). The pelletized lime is definitely easier to spread evenly, which is often important. However pelletized lime is too expensive for most producers. If you need lime then spread AgLime is my suggestion.
Below is some additional reinforcement on the same subject from Oklahoma State University.
Pelletized Lime
Pelletized lime is often marketed to the farmer using the phrase “a few hundred pounds of this is equal to a ton of aglime,” but this is an inaccurate representation of the acid neutralizing potential of pelletized lime. Chemically, one molecule of CaCO3 will neutralize two H+ ions which are the cause of soil acidity. There is no shortcut around this reaction! Therefore, pelletized lime is no more effective in reducing soil acidity than aglime of the same ECCE (Effective Calcium Carbonate Equivalent). Pelletized lime is also often marketed to the farmer as a “quick fix” to pH problems. Field and laboratory experiments have repeatedly proven, however, that this is not the case and that pelletized lime does not neutralize soil acidity any faster than good quality aglime.
The primary benefit of pelletized lime products is the ability to apply these products with other fertilizer materials such as urea or DAP, thus eliminating an added pass across the field for lime application. However, due to the costs of materials, applying pelletized lime as an alternative to aglime is generally cost prohibitive.
Here is the full link if your interested. http://factsheets.okstate.edu/documents/pss-2240-managing-acid-soil...
Here is a second viewpoint from Dr Lloyd Murdock from the University of Kentucky.
http://www.uky.edu/Ag/Agronomy/Extension/ssnv/ssvl189.htm
Edited by Phil N 11/17/2019 17:23
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Annual ag lime vs Pell lime debate.
