生物炭对盐碱条件下海滨锦葵根系生长及土壤特性的影响  

Effects of Biochar on the Root Growth of Kosteletzkya pentacarpos and Soil Characteristics Under Saline-alkali Condition

作　　者：杨怡 迭鹏翔 张松彦 周建 YANG Yi;DIE Pengxiang;ZHANG Songyan;ZHOU Jian(School of Horticulture and Landscape Architecture,Henan Institute of Science and Technology,Xinxiang Henan 453003;Henan Horticultural Plant Resource Utilization and Germplasm Innovation Engineering Research Center,Xinxiang Henan 453003)

机构地区：[1]河南科技学院园艺园林学院,河南新乡453003 [2]河南省园艺植物资源利用与种质创新工程研究中心,河南新乡453003

出　　处：《现代农业科技》2024年第13期90-94,115,共6页Modern Agricultural Science and Technology

基　　金：新乡市科技攻关项目“高浓度盐碱条件下海滨锦葵萌发生根的关键技术研究”(GG2021007)。

摘　　要：为探索生物炭对盐碱条件下植物根系与土壤特性的影响,以海滨锦葵为材料,在盐碱土壤中添加不同含量的生物炭,测定植株根系活力、根系生长、土壤pH值、土壤电导率、土壤容重、土壤孔隙度等指标。结果表明,在盐碱胁迫下,添加生物炭可提高海滨锦葵根系活力,中高含量生物炭明显促进植株根系生长,降低土壤pH值与电导率,提高土壤容重(除个别数据外),降低土壤孔隙度(除个别数据外)。经比较,5.0%和7.5%生物炭对盐碱条件下海滨锦葵根系发育与土壤特性的调控效果相对较好。In order to explore the effects of biochar on plant roots and soil characteristics under saline-alkali conditions,this paper used Kosteletzkya pentacarpos as material,different concentrations of biochar were added to the saline-alkali soil to measure some indexes,including plant root activity,root growth,soil pH value,soil conductivity,soil bulk density,soil porosity and so on.The results showed that under saline-alkali stress,biochar could increase the root activity of K.pentacarpos,and medium to high contents of biochar significantly promoted plant root growth,decreased the soil pH value and conductivity,increased the soil bulk density except for individual data,decreased the soil porosity except for individual data.After comparison,5.0%and 7.5%biochar both had relatively good regulating effects on root development of K.pentacarpos and soil characteristics under saline-alkali condition.

关 键 词：海滨锦葵 生物炭 盐碱胁迫 根系生长 土壤特性 

分 类 号：S156.4[农业科学—土壤学]