Currently, lime requirements for New York (NY) soils are derived from the actual soil pH, target pH and exchange acidity determined by a barium chloride (BaCl₂) titration. The latter analysis is time-consuming and generates toxic waste. Our objective was to compare the accuracy of the Mehlich buffer with half the BaCl₂ replaced with calcium chloride (CaCl₂), the modified Mehlich buffer (CaCl₂ instead of BaCl₂), Shoemaker-McLean-Pratt (SMP) buffer, and Sikora buffer in predicting lime needs for NY agricultural soils. Twenty-two soils were collected from major agricultural areas in NY. The soils ranged in initial pH from 4.1 to 6.4 and in exchangeable acidity from 6.5 to 31.0 cmol_c kg^-1. Organic matter levels ranged from 16 to 73 mg kg^-1 and Morgan extractable Al varied from 7 to 117 mg kg^-1. Soils were incubated in the dark at 21 degrees C for 12 weeks with CaCO₃ added at 0, 1/3, 2/3, 1, 1 1/3, and 2 times the lime required to reach pH 7.0 (based on the BaCl₂ titration). Actual CaCO₃ additions ranged from 0.18 to 1.64 g 100 g soil^-1. One week out of three the perforated lids were removed to allow soil drying, followed by rewetting to between 25 and 37% moisture. Following the incubation, soils were analyzed for pH to determine the lime requirement for each of the individual soils and Morgan extractable Al to determine the amount of CaCO₃ needed to neutralize soil Al. The results of the study will be presented and discussed.