沈阳农业大学学报2012，Vol.43Issue(5)：515-520,6.
生物炭对菠菜根际微生物及土壤理化性质的影响
Effect of Biochar on Microorganisms Quantities and Soil Physicochemical Property in Rhizosphere of Spinach
摘要
Abstract
To investigate the impact of biochar on spinach rhizosphere microorganisms and soil physicochemical property, three biochar application rates, including CO (0kg·hm-2), C1(12500Kg·hm-2) and C2(25000kg·hm-2), were applied in spinach protected field, and the quantity of the bacteria, fungi, actinomyces, and ammonifying bacteria, azotobacter, denitrifying bacteria, microbial biomass C (MBC), pH, Eh oxidation-reduction potential (Eh) and mineral nutrient content were studied.The results indicated that the quantity of bacteria, fungi, actinomyces, and ammonifying bacteria, azotobacter, denitrifying bacteria under Cl treatment were 1.06 fold, 2.18 fold, 1.17 fold, 1.47 fold, 2.94 fold, 0.38 fold of CO treatment in rhizosphere of spinach, while that under C2 treatment were 1.25 fold, 2.08 fold, 1.24 fold, 1.41 fold, 4.92 fold, 1.76 fold of CO treatment.MBC content was C2>C1>CO, and had significant difference among treatments (P<0.01).The total phosphorus, total carbon, total sulphur, total potassium content, carbon/nitrogen and Eh in C2 and Cl treatments were all higher than that in CO treatment.Therefore, biochar could be used as ameliorant to improve soil hardening and physical and chemical properties.关键词
生物炭/菠菜/微生物/理化性质/根际Key words
biochar/ spinach/ microorganisms/ physicochemical property/ rhizosphere分类
农业科技引用本文复制引用
韩光明,孟军,曹婷,刘遵齐,陈温福..生物炭对菠菜根际微生物及土壤理化性质的影响[J].沈阳农业大学学报,2012,43(5):515-520,6.基金项目
辽宁工程技术研究计划基金项目(2011402021) （2011402021）
国家科技部重点技术研发项目(2012BAD14B01) （2012BAD14B01）
