云南民族大学学报（自然科学版）2025，Vol.34Issue(1)：27-33,7.DOI:10.3969/j.issn.1672-8513.2025.01.004
铁基生物炭配施甲壳素对三七连作土壤理化性质与酶活性的影响
Effects of iron-based biochar combined with chitin on physicochemical properties and enzyme activities of continuous cropping soil of Panax Notoginseng
摘要
Abstract
This study aims to investigate the effects of iron-based biochar combined with chitin on the physico-chemical properties and enzyme activities of soils under continuous cropping of Panax notoginseng.The experi-ment included four treatments(T1～T4)and one Control(CK).The results showed that the soil electrical conduc-tivity in T3 and T4 treatments was increased by 71.42%and 78.57%,respectively,compared with CK.The total nitrogen content in the soil significantly increased in the T4 treatment.After 15 days of cultivation,the soil sucrase activity in the T4 treatment increased by 6.17%compared to CK;the protease and urease activities in the T1 and T4 treatments increased by 11.33%and 19.08%respectively,compared with CK.The activities of superoxide dis-mutase and peroxidase in Panax notoginseng leaves in T3 treatment were highest.After 30 days of cultivation,the activities of the three enzymes in the soil decreased to varying degrees compared with those after 15 days.Correla-tion analysis showed that there was a very significant positive correlation between invertase and nitrate nitrogen,a significant negative correlation between urease and pH,and a significant negative correlation between sucrase and superoxide dismutase and soil,a significant negative correlation between organic carbon,and a significant negative correlation between superoxide dismutase and total soil nitrogen.PCA analysis indicated that the relationship between soil physicochemical properties and enzyme activities in the T3 treatment differed from those in other treat-ments.关键词
铁基生物炭/甲壳素/土壤酶活性/超氧化物歧化酶活性/过氧化物酶活性Key words
iron-based biochar/chitin/soil enzyme activity/superoxide dismutase activity/peroxidase activity分类
农业科技引用本文复制引用
王童,范梦林,赵媛,王贞玉,官会林,唐振亚,樊芳玲..铁基生物炭配施甲壳素对三七连作土壤理化性质与酶活性的影响[J].云南民族大学学报（自然科学版）,2025,34(1):27-33,7.基金项目
国家自然科学基金(42107256) （42107256）
云南省基础研究计划项目(202201AT070036 （）
202201AU070147 （）
202301AT07460). （）
