摘要
为改良苏打盐碱地土壤、有效修复盐碱地,采用深松技术与化学改良剂有机结合的方法,依据单因素试验获得了苏打盐碱地改良前后土壤理化指标的变化趋势,并利用SPSS软件进行统计分析。结果表明:深松后土壤容重平均降低0.29 g/cm3、硬度平均减小111 kPa、含水量平均上升3.03%;施用硫酸铝改良剂效果较好,且改良区土壤pH平均减小0.26,电导率平均降幅为0.43 mS/cm,含盐量下降1.13 g/kg,使土壤由重度盐化土降为中度盐化土。
The combination of subsoiling technology and chemical ameliorants aims to explore a new method for improving soda saline-alkali soil and effectively restoring saline-alkali soil.Based on the single factor experiment,the change trend of soil physical and chemical indicators before and after the improvement of soda saline-alkali land was obtained.The results showed that the average soil bulk density decreased by 0.29 g/cm~3,the average hardness decreased by 111 kPa,and the average water content increased by 3.03%.The application of aluminium sulfate ameliorant had a better effect,and the average soil pH value decreased by 0.26,and the average electrical conductivity decreased by 0.43 mS/cm,and the salt content decreased by 1.13 g/kg,which reduced the soil from severe salinized soil to moderate salinized soil.
作者
李健
郭颖杰
王景立
LI Jian;GUO Yingjie;WANG Jingli(College of Engineering and Technology,Jilin Agricultural University,Changchun 130118,China)
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2020年第6期699-702,共4页
Journal of Jilin Agricultural University
基金
国家重点研究计划项目(2016YFC0501200)
关键词
苏打盐碱土
深松
化学改良剂
理化指标
soda saline-alkali soil
subsoiling
chemical ameliorant
physical and chemical indicators
