改良剂与沼液配施对中度苏打盐碱土的改良效果研究
Study on improvement effects of combined application of amendment and biogas slurry on moderate soda saline-alkali soil
宋明璇 1周晨辉 2闫丙建 2刘金华 3赵小湾 3王雪 4杨靖民 3张忠庆3
作者信息
- 1. 吉林农业大学资源与环境学院/吉林省商品粮基地土壤资源可持续利用重点实验室/吉林省黑土地保护与利用工程实验室/秸秆综合利用与黑土地保护教育部重点实验室,吉林 长春 130118;长春师范大学,吉林 长春 130032
- 2. 吉林大安牧原农牧有限公司,吉林 白城 137000
- 3. 吉林农业大学资源与环境学院/吉林省商品粮基地土壤资源可持续利用重点实验室/吉林省黑土地保护与利用工程实验室/秸秆综合利用与黑土地保护教育部重点实验室,吉林 长春 130118
- 4. 吉林省农业技术推广总站,吉林 长春 130118
- 折叠
摘要
为了探究改良剂与沼液配施的合理方案,实现盐碱地改良,针对吉林省大安市盐碱地,通过大田试验,研究沼液与改良剂配施对苏打盐碱土的改良效果.试验结果表明,改良剂与沼液配施均能够有效提高土壤有机质、有效磷、速效钾、碱解氮的含量,增大总孔隙度,增加了土壤团聚体的数量,改善了土壤团聚体稳定性,水稻产量显著提升,并有效降低土壤pH值、土壤容重、碱化度、水溶性盐含量.综合分析,脱硫石膏与沼液配施对苏打盐碱土改良效果最好,对比未施用沼液的处理,有机质含量提升 100%,有效磷含量提升 34%,速效钾含量提升 59%,碱解氮含量提升 104%,总孔隙度提升 14%,土壤团聚体数量显著增加,土壤团聚体稳定性得到明显改善,增产率为 76.77%,土壤pH值降低 12%,土壤容重降低 9.9%,碱化度降低 11%,水溶性盐含量降低 48%.
Abstract
In order to explore the reasonable scheme of combined application of modifier and biogas slurry and realize the improvement of saline-alkali land,this experiment aimed at saline-alkali land in Da'an City,Jilin Province,and studied the improvement effect of combined application of biogas slurry and modifier on soda saline-alkali soil through field experiment.The results showed that the combined application of amendments and biogas slurry effectively increased the content of soil organic matter,available phosphorus,available potassium and alkali-hydrolyzable nitrogen,increased the total porosity and the number of soil aggregates,improved the stability of soil aggregates,significantly increased the rice yield,and effectively reduced soil pH,soil bulk density,alkalinity and water-soluble salt content.Comprehensive analysis showed that the combined application of desulfurized gypsum and biogas slurry had the best effect on the improvement of soda saline-alkali soil.Compared with the treatment without biogas slurry,the content of organic matter was increased by 100%,the content of available phosphorus was increased by 34%,the content of available potassium was increased by 59%,the content of alkali-hydrolyzable nitrogen was increased by 104%,the total porosity was increased by 14%,the number of soil aggregates was increased significantly,and the stability of soil aggregates was significantly improved;The yield increase rate was 76.77%,the soil pH was decreased by 12%,the soil bulk density was decreased by 9.9%,the alkalinity was decreased by 11%,and the water-soluble salt content was decreased by 48%.
关键词
苏打盐碱土/沼液/改良剂/土壤理化性质Key words
soda saline-alkali soil/slurry/modifier/soil physical and chemical properties引用本文复制引用
基金项目
吉林省自然科学基金(20210101367JC)
校企合作项目(2021220001000008)
出版年
2024
NETL
NSTL
万方数据