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The lime is the acidity corrective more used in brazilian agricultural soils, but important benefits can be obtained from calcium and magnesium silicates. The aim of this study was to compare the effect of neutralizing soil acidity by application of lime and silicate, with incubation of the correctives in soil conditions more or less moisture. The experiment was conducted in the Soil Chemical Analysis Laboratory at the UNOESTE, using soil collected in the layer 0-20 cm of a Sandy Loam Argisol. The experiment was carried out in a completely randomized in a 2x2x5 factorial scheme, with two correctives (lime and silicate of Ca and Mg), two soil moistures (80 and 20% moisture soil saturation) and five times (60, 90, 120, 150 and 180 days after incubation) of soil chemical properties. It was submitted to variance analysis and the effects of soil moisture and correctives were evaluated by Tukey test (p<0,05) and the incubations time were evaluated by regression analysis. The silicate has a higher neutralizing capacity of soil acidity than lime, and thus its dosage should be further investigated, because the use of the calculation to determine the lime requirement can overestimate the need for silicate applied. The lime reactivity in the soil is not influenced with soil moisture between 20 and 80% moisture saturation, unlike silicate, which has its soil reactivity enhanced in the condition of higher moisture. The soil corrective action acidity by both corrective remains increasing up to 180 days of incubation, however, satisfactory results are already obtained with 60 days of soil incubation

CALAGEM E SILICATAGEM EM SOLO INCUBADO COM DIFERENTES UMIDADES