水土保持研究2017，Vol.24Issue(4)：290-295,6.
不同秸秆混合生物炭对盐碱土壤养分及酶活性的影响
Effects of Different Straw Mixing Biochar on Nutrient and Enzyme Activity of Saline Soil
摘要
Abstract
The various effects of different straw biochar on nutrient contents and enzyme activities were studied in order to provide information for saline soil and proper management of residue.The saline soil that originated from the Inner Mongolia was used as the sample.The influences of corn stover,corn cob,reed and manicipal sludge mixing biochar that pyrolyzed that 450℃ on soil pH,CEC,nutrient contents and enzyme activities were investigated.The results showed that kinds of mixing biochar surface chemical functional groups were consistent and there were differences in contents;pH value was slightly lowered due to the increasing amount of mixing biochar,CEC in the saline soil was significantly improved.The three mixing biochar could ameliorate the nutrient contenst of saline soil.The application of biochar prepared by corn stover and sludge mainly promoted the level of available K while the biochar prepared by reed and sludge improved the contents of total P and available P.Adding mixing biochar had the significant promotive effects on the activities of sucrase and urease in the soil,and the promotive effects of adding high dose of biochar were significantly greater than those of adding middle dose or low dose of biochar.The impact of adding biochar on the activity of catalase in the saline soil presented that adding middle dose or low dose of biochar had significantly greater promotive effect on catalase activity than adding high dose of biochar.关键词
混合生物炭/盐碱土壤/养分/酶活性Key words
mixing biochar/saline soil/nutrient/enzyme activit分类
农业科技引用本文复制引用
黄哲,曲世华,白岚,尚少鹏,李玉梅,张连科..不同秸秆混合生物炭对盐碱土壤养分及酶活性的影响[J].水土保持研究,2017,24(4):290-295,6.基金项目
内蒙古自然科学基金面上项目“油料作物生物炭对包头铁矿区农田土壤中铅的稳定化研究”(2016MS0221) （2016MS0221）
