Fertilizer nitrogen uptake by rice increased by biochar application

文献类型: 外文期刊

第一作者: Qin, Huadong

作者: Qin, Huadong;Jiang, Ligeng;Yang, Liu;Zou, Yingbin;Zou, Yingbin

作者机构:

关键词: Biochar;N loss;N uptake;Rice

期刊名称:BIOLOGY AND FERTILITY OF SOILS ( 影响因子:6.432; 五年影响因子:6.332 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: This study was conducted to test the hypothesis that biochar application can increase rice yield through improving nitrogen (N) uptake and utilization by rice plants under N application conditions. A pot experiment was done with a hybrid rice cultivar grown on a Fe-leachi-Stagnic Anthrosols with and without biochar application. The N fertilizer used was N-15-labeled urea. Results showed that biochar application resulted in 23-27 % increase in fertilizer N uptake by rice plants and consequently 8-10 % increase in grain yield. The higher fertilizer N uptake under biochar application was associated with a reduced fertilizer N loss. Fertilizer N loss rate was reduced by 9-10 % by applying biochar. We suggest that further studies are needed to assess the short-term and long-term effects of different biochars on N uptake and utilization by rice under field conditions

分类号: S15

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