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以盆栽试验的方法研究应用生物型煤粉煤灰改良辽河平原北部碱土,结果表明,施用生物型煤粉煤灰后在提高小麦出苗率、增加产量的同时,土壤水溶性盐分含量、组成和透水性发生了明显的变化,CO_2-~3和HCO_3~-降,Ca2+和SO_2-~4上升,在同一吸力下,施用改良剂的土壤释水量明显增加,土壤水渗透速度也大幅度提高.生物型煤粉煤灰用量以1%~2%为宜.
The pot experiment was conducted to study the application of bio-based coal fly ash to improve the alkaline earth in the northern part of Liaohe Plain. The results showed that after application of bio-based coal fly ash, the soil water-soluble salt content, composition and water permeation Under the same suction, soil water release increased significantly with the application of amendments, and soil water penetration rate also increased significantly. Bio-coal fly ash dosage of 1% ~ 2% is appropriate.