干旱地区农业研究2009，Vol.27Issue(6)：223-227,5.
油页岩栽培基质脱盐技术及其效果研究
Oil shale culture mediums desalination technology and its effect
摘要
Abstract
Oil shale deposits contain a large number of organic matter and mineral nutrients needed for crop growth, but a higher water-soluble salt content is a key barrier factor in agriculture or horticulture as cultivating substrate. Differ-ent desalination treatments (under water/sample ratio 0:1, 1:1, 2:1, 3:1, 4:1, 5 : 1, 6:1, 7:1, 8:1, 9:1, 10:1 and water temperature 40℃, 50℃, 60℃, 70℃, 80℃, 90℃, 100℃)were designed in the test, thereby achieving the de-sired effect. Through measuring oil shale pH, conductivity, the total amount of water-soluble salt and the composition of anion-cation (Cl~- , SO_4~(2-), CO_3~(2-), HCO_3~-, Ca~(2+), Mg~(2+), K~+ , Na~+) in different treatments, we wanted to find the proper fixed flushing and measures, also the rule of ions leaching. The results showed that: The efficiency of desalination was higher and water consumption was the lowest in the 5:1 ratio of water and soil treatment. After being desalinated, the pH of oil shale increased from 5.2 to 6.58, and its salt content reduced from 7.69 g/kg to 1.18 g/kg, with a de-salination rate of 84.66% , and its salt content and pH had met the growth requirements of most cultivated crops; If in-creasing temperature of water properly, the effect of desalination would be better.关键词
油页岩/栽培基质/水溶性盐/脱盐率Key words
oil shale/culture matrix/water-soluble ions/desalination ratio分类
农业科技引用本文复制引用
伏耀龙,王永健,王益权,喻建波,徐海,王金贵..油页岩栽培基质脱盐技术及其效果研究[J].干旱地区农业研究,2009,27(6):223-227,5.基金项目
陕西省科技厅科技计划(2005K-G16) （2005K-G16）
