不同施肥方式对盐碱土培肥及脱盐效果的影响  

Effects of different fertilization on saline soils fertility betterment and desalination

作　　者：车军平[1] 李学平[2] 蒲生彦[1] 王明铭[1] 秦兰兰[1] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]滨州学院城市与环境系,山东滨州256600

出　　处：《广东农业科学》2013年第2期54-56,59,共4页Guangdong Agricultural Sciences

摘　　要：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。In this study, the effect of fertility betterment and desalination were analyzed by applying compound fertilizer, straw returning and applying bio-organic fertilizer on the typical saline soils in Binzhou city. The results indicated that after 120 days of fertilization, the fertility of saline-alkali soil by applying compound fertilizer increased more rapidly. The content of available nitrogen, phosphorus, potassium and organic matter in soil increased by 146.84%, 110.53%, 139.13% and 77.37%, respectively. The most effective way for desalting was applying biological organic fertilizer. After 120 days of fertilization, the content of water soluble salt reduced fi＇om 1.6 g/kg to 0.5 g/kg by applying bio-organic fertilizer. Its desalination was the most significant with a decrease of 68.75%. Therefore, the research of saline-alkali soil fertility betterment and desalination should give more regard to focus on balanced fertilizer compound fertilizer as well as bio-organic fertilizer in the future.

关 键 词：优化施肥 盐碱土 培肥 脱盐 

分 类 号：S156.42[农业科学—土壤学]