We determined the comparative effects of wheat-fallow, continuous wheat, and an 8-year cereal-grass rotation on the chemical, physical, and biological properties of a Solonetzic soil after 22 years of cropping. Differences in chemical properties were characterized by increased levels of ex-tractable Na in the soil solum of the wheat-fallow rotation, in contrast to the other two systems. The sodium adsorption ratio and soluble sodium percentage of the saturation paste extract from the Bnt horizon were significantly lower under the cereal-grass rotation. Extractable Na was negatively correlated with various physical properties, such as H2O infiltration, soil strength, and aggregate stability. Organic C and N levels, with expressed on either a concentration or area basis, increased from the wheat-fallow to the cereal-grass rotation. For the latter system, a friable consistence of the Bnt horizon was related to higher levels of organic matter. Generally, biological properties, such as microbial biomass C and N and N mineralization potentials, reflected the above change in organic C and N. Labile organic matter and the N-supplying capacity of the Ap horizon were enhanced under both continuous wheat and the cereal-grass rotation, compared to the wheat-fallow. The study provides an example of possible improvement, over time, in the agronomic properties of some Solonetzic soils due to improved management.