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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。
Using cucumber as test material, the effects of different amount of biochar (1%, 3%, 5%, 7%, 9%) on soil properties, number of microbes and cucumber The impact of growth. The results showed that applying biochar in continuous cropping could significantly reduce soil bulk density and conductivity, increase field capacity of water, pH and available potassium, decrease soil fungi and Fusarium oxysporum, and increase the ratio of bacteria to bacteria / fungi, thus improving Cucumber root zone soil micro-ecological environment, and promote the cucumber growth and yield increase. Comprehensive analysis shows that the application of 5% is more appropriate, and can be used as a measure to improve continuous cropping soil in actual production.