GU Si-yu,LI Xin-jie,WEI Dan,et al.Effects of Biochar on Soil Nutrient Contents and Microorganism of Soybean Rhizosphere[J].Soybean Science,2014,33(03):393-397.[doi:10.11861/j.issn.1000-9841.2014.03.0393]
生物炭对大豆根际土壤养分含量及微生物数量的影响
- Title:
- Effects of Biochar on Soil Nutrient Contents and Microorganism of Soybean Rhizosphere
- Keywords:
- Biochar; Soybean; Microorganism; Rhizosphere
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 采用盆栽试验方法研究了不同量生物炭对大豆根际土壤养分含量及微生物数量的影响。结果表明:土壤中施入生物炭对大豆根际土壤养分含量及微生物数量产生显著影响,在300~1 500 kg?hm-2范围内,各时期可平均提高土壤pH0.06个单位,土壤有机碳平均提升24.08%,速效氮、磷、钾分别增加10.37%、34.56%和9.16%;土壤蔗糖酶、过氧化氢酶和脲酶的活性分别增加19.05%、21.18%和25.90%;土壤中细菌、真菌和放线菌的数量分别提高1.95、1.65和1.69倍。
- Abstract:
- The effects of different amount of biochar on soil nutrient contents and microorganism of soybean rhizosphere were studied on the basis of pot experiment.The results showed that comparied with the treatment no application of biochar in soybean rhizosphere soil,when the application of biochar range at 300~1 500 kg?ha-1,in each period soil pH was increased by an average of 0.06 units,the soil organic carbon could be increased at an average of 24.08%,available N,P and K were increased by 10.37%,34.56% and 9.16%,separately;the activity of soil invertase,catalase and urease was increased by 19.05%,21.18% and 25.90%,and the quantity of bacteria,fungi and actinomyces were improved by 1.95,1.65 and 1.69 times in soybean rhizosphere soil.
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备注/Memo
收稿日期:2013 11 18