沸石腐殖酸复合型土壤调理剂对黄河三角洲盐碱化农田土壤的改良效果

Improvement Effect of Zeolite Humic Acid Composite Soil Conditioner on Saline-alkali Farmland Soil in Yellow River Delta

以天然沸石为主要材料,添加矿源腐殖酸,形成复合型土壤调理剂,在山东省东营黄河三角洲地区进行盐碱地玉米种植试验,试验结果显示,施用沸石腐殖酸复合型土壤调理剂能够有效降低土壤pH和土壤盐碱度,优化土壤结构,提高土壤养分和微生物含量,还可以实现玉米增产。施用7500 kg/hm^(2)沸石腐殖酸复合型土壤调理剂,土壤脱盐率可达24.2%;施用6000 kg/hm^(2)沸石腐殖酸复合型土壤调理剂,可实现玉米增产24.09%。

Using natural zeolite as the main material,adding mineral humic acid to form a composite soil conditioner,corn planting experiments were conducted in saline-alkali land in the Yellow River Delta area of Dongying,Shandong Province.The test results showed that the application of zeolite humic acid composite soil conditioner could effectively reduce soil pH and soil salinity,optimize soil structure,increase soil nutrient and microbial content,and increase corn yield.Applying 7500 kg/hm^(2) zeolite humic acid composite soil conditioner,the soil desalination rate could reach 24.2%;applying 6000 kg/hm^(2) zeolite humic acid composite soil conditioner,the corn yield could be increased by 24.09%.