Experimental treatments and procedurePerformance of the most efficient inorganic polymer soil
amendment screened in the laboratory experiment was evaluated
under paddy field condition. According to the results of the soil
amendment screening in the laboratory experiment, PAFS was the
most efficient soil amendment and was evaluated in the paddy
field. Since rice cultivation without any soil amendments was the
common practice for hard saline–sodic soil amelioration in the
Songnen Plain, rice cultivation for one year and two years were
used as references.