Soil samples should be collected and checked for the degree of acidity or alkalinity in a soil. Lime is generally recommended at pH values below 5.7 (Table 4-1). If rice is in the rotation, lime is not recommended without the benefit of additional information such as irrigation water quality tests. Even then, lime is not recommended unless the soil pH is below 5.7 (Table 4-2). If lime is needed, it is better to apply it during the fall to provide enough time for it to react with the soil.