在河西走廊的盐化潮土上设置了糠醛渣的改土培肥田间试验,结果表明:甜菜施用糠醛渣与施用化肥比较,土壤容重、全盐、pH分别降低0.21g cm^-3、0.36g kg^-1、0.37;总孔度、自然含水量、贮水量、团粒结构、有机质、速效N、P、K、CEC分别增加7.93%、79.90g kg^-1、131.95m^3 hm^-3、4.75%、0.61g kg^-1、12.96mg kg^-1、1.24mg kg^-1、6.78mg kg^-1、1.89cmol kg^-1。施肥成本降低90元hm^-2,施肥利润增加1716元hm^-2。且施用糠醛渣能提高土壤中磷的活性和磷的利用率。
An experiment for improving soil fertility was conducted in field to test the effect of furfural dreg on the salt contents in the Hexi Corridor. The result shows: Compared with the use of the furfural dreg and the chemical fertilizer for beet, we found that soil bulk density, salt content and pH were reduced by 0.21g cm^-3, 0.36g kg^-1 and 0.37, respectively. Total porosity, water content, the amount of stored water, aggregate structure, organic matter, available N, P and K and CEC increase by 7.93%, 79.90g kg^-1, 131.95m^3 hm^-2, 4.75% , 0.61g kg^- 1, 12.96mg kg^-1, 1.24mg kg^-1, 6.78mg kg^-1 and 1.89cmol kg^-1,respeetively. The cost is reduced by 90 yuan hm^-2, while the profit increases by 1716 yuan hm 2. In addition, the utilization rate of phosphorus and the content of available phosphorus were improved by using the furfural dreg.