核农学报2024，Vol.38Issue(11)：2211-2218,8.DOI:10.11869/j.issn.1000-8551.2024.11.2211
生物炭和腐植酸对唐菖蒲生长及根际土壤环境的影响
Effects of Biochar and Humic Acid on the Growth and Rhizosphere Soil Environment of Gladiolus hybridus
摘要
Abstract
To study the effects of biochar and humic acid on the growth and the rhizosphere soil environment of Gladiolus hybridus,greenhouse experiments were conducted,using Gladiolus hybridus as the experimental subject.Eight treatments were established:control(CK:without biochar and humic acid),humic acid(T1:0.2 kg·m-2),biochar(T2:1.5 kg·m-2);2 combined bio-materials(T3:0.5 kg·m-2 biochar+0.2 kg·m-2 humic acid,T4:1.0 kg·m-2 biochar+0.2 kg·m-2 humic acid,T5:1.5 kg·m-2 biochar+0.2 kg·m-2 humic acid,T6:2.0 kg·m-2 biochar+0.2 kg·m-2 humic acid,T7:3.0 kg·m-2 biochar+0.2 kg·m-2 humic acid).The plant growth and soil indexes under different treatments were determined.The results indicated that all the humic acid combined biochar treatments enhanced the biomass of Gladiolus hybridus.Compared to CK,T2,T4,T5,T6 and T7 increased the fresh and dry weight of Gladiolus hybridus at the 60 and 90 days after planting Gladiolus hybridus.Furthermore,the chlorophyll relative value(SPAD)in the leaves of Gladiolus hybridus was increased as the increasing of biochar application.Root length,surface area,and volume were assessed using a root scanning system(WinRHIZO)at the 60 d,compared to CK,all treatments promoted the root growth of Gladiolus hybridus to a certain extent,T2,T3,T4,T5,T6,and T7 had significant increased.Compared to CK,soil organic matter content in each treatment significantly was increased;soil pH was increased except for that of T1,while the T2,T6 and T7 had increased by a large margin,increasing by 0.88,0.87,and 1.07 units,respectively.Additionally,compared to CK,soil compaction significantly decreased with increasing biochar application in the T2,T5,T6,and T7,decreasing by 15.56%,20.95%,19.45%,and 24.97%,respectively.In conclusion,biochar and humic acid have the potential value in soil fertilization and plant growth promotion.Under the conditions of this experiment,an appropriate combination of biochar and humic acid(T5 and T6)positively influenced the growth of Gladiolus hybridus.This study provides a scientific and theoretical basis for the efficient cultivation of Gladiolus hybridus.关键词
生物炭/腐植酸/唐菖蒲/土壤Key words
biochar/humic acid/Gladiolus hybridus/soil引用本文复制引用
张福建,姚文武..生物炭和腐植酸对唐菖蒲生长及根际土壤环境的影响[J].核农学报,2024,38(11):2211-2218,8.基金项目
上海市崇明区农业科创项目(2022CNKC-02-05),上海市崇明区"可持续发展科技行动计划"项目(CK2022-09),上海市科技兴农推广项目(沪农科推字(2020)第1-1号) （2022CNKC-02-05）
