WU Chuncheng,WANG Caiyun,CAO Xia,et al.Effects of Different Biochar Application Rate on Improvement of Continuous Cropping Soil and Cucumber Growth[J].Northern Horticulture,2017,41(19):150.[doi:10.11937/bfyy.20170690]
不同用量生物炭对连作土壤改良及黄瓜生长的影响
- Title:
- Effects of Different Biochar Application Rate on Improvement of Continuous Cropping Soil and Cucumber Growth
- Keywords:
- biochar; continuous cropping soil improvement; cucumber; growth
- 文献标志码:
- A
- 摘要:
- 以黄瓜为试材,采用桶栽的方法,研究了不同用量生物炭(按连作土壤质量比1%、3%、5%、7%、9%施入)对连作土壤性状、微生物数量及黄瓜生长的影响。结果表明:连作土壤施用适量的生物炭可以显著降低土壤容重和电导率,提高田间持水量,pH和速效钾含量,降低土壤真菌和尖孢镰刀菌数量,提高细菌和细菌/真菌比值,从而改善了黄瓜根区土壤微生态环境,促进了黄瓜生长和产量的提高。综合分析认为,施用5%用量较为适宜,在实际生产中可作为改良连作土壤的措施加以利用。
- Abstract:
- Cucumber was used as test materials,a pot experiment was conducted to study the effects of different biochar application rate (according to the continuous cropping soil mass ratio of 1%,3%,5%,7%,9%) on soil properties,microbial quantity and cucumber growth.The results showed that the moderate biochar could significantly reduce soil bulk density and EC value,increase field capacity,pH and rapidly-available potassium content,reduce soil fungi and fusarium oxysporum quantity,but improve bacteria quantity and B/F (bacteria/fungus) ratio,thus the cucumber root zone soil micro ecological environment was improved,promoting the cucumber growth and yield.Therefore,the biochar dosage at a level of 5% was more appropriate in this experiment by comprehensive analysis,which could be used as measures to improve continuous cropping soil in the actual production.
参考文献/References:
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备注/Memo
第一作者简介:武春成(1979-),男,河北怀来人,博士,副教授,现主要从事设施蔬菜连作障碍等研究工作。E-mail:wuchuncheng1979@126.com.