腐植酸物质对盐碱化中低产田土壤理化性质及玉米影响的研究

通过田间试验探讨了复合改良制剂、草炭、风化煤等腐植酸类物质施用对盐碱化中低产田土壤理化性质及生长作物的影响，结果表明：复合改良制剂、草炭、风化煤施用对土壤理化性质均有积极的影响，与对照相比达到显著水平。玉米产量的方差分析表明，复合改良制剂处理与草炭、风化煤等处理差异显著，与对照差异极显著，增产率均达到30．67％以上。

Study on the effect of humic materials on physical and chemical characteristics of the soil and corn growth in medium and low yield fields

Through field experiments, we studied the effects of some humic materials such as ameliorant composite, turf, and leonardite on soil physical and chemical properties, and crop growth of in saline soil. The results showed that, comparing with control, the soil physical and chemical properties were significantly improved due to humic material application. Corn yield applied ameliorant composite was 30.67% higher than those applied turf and weathered coal.