论文部分内容阅读
通过施加复合肥料、秸秆还田和施加生物有机肥3种施肥方式对滨州市典型盐碱土壤的培肥及脱盐效果进行研究。结果表明:施加复合肥料的培肥效果最好,经过120 d的培肥,盐碱土中的碱解氮、速效磷、速效钾、有机质含量分别比对照增长了146.84%、110.53%、139.13%、77.37%;施加生物有机肥的脱盐效果最好,经过120 d的培肥,盐碱土中水溶性盐分(全盐量)含量为0.5 g/kg,比对照土壤中的水溶性盐分含量(1.6 g/kg)降低了68.75%。因此,复合肥料与生物有机肥的均衡配施应成为今后盐碱土培肥及脱盐研究的重点。
The fertilization and desalination effects of typical saline-alkali soils in Binzhou were studied by applying three kinds of fertilizers, compound fertilizer, straw returning and applying bio-organic fertilizer. The results showed that the compound fertilizer was the most effective way to fertilize the soil. After 120 days of fertilization, the content of available nitrogen, available phosphorus, available potassium and organic matter in saline-alkali soil increased by 146.84%, 110.53% and 139.13% 77.37% .Biological application of bio-organic fertilizer desalination effect best, after 120 d of fertilization, saline-alkali soil water-soluble salt content (total salt content) of 0.5 g / kg, than the control soil water-soluble salt content / kg) decreased by 68.75%. Therefore, the balanced application of compound fertilizers and bio-organic fertilizer should be the focus of the research on salinization soil fertilization and desalination in the future.