So far there is little information available about furfural and its biochar effects on saline soils. Here we conducted an incubation experiment to study the effects of furfural and its biochar applications on soil pH, electricity conductivity, total organic carbon, cation exchange capacity, exchange sodium percentage and available phosphorus of a saline soil during 56 d incubation. Furfural was found to be more effective in influencing soil pH and available phosphorus than its biochar. The decrease of soil pH by 5% biochar was less than that by 2.5% furfural. Compared with the control, applying furfural increased soil available phosphorus by 4 to 6 times , while biochar increased it by 2 to 5 times. However, biochar increased total organic carbon 62% greater than furfural did. In addition, biochar addition reduced soil exchange sodium percentage more effectively than furfural did. No significant difference between furfural and its biochar was found in soil cation exchange capacity.
; 邵宏波
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