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Effect of biochar amendment on maize yield and greenhouse gas emissions from a soil organic carbon poor calcareous loamy soil from Central China Plain

Zhang, Afeng ; Liu, Yuming ; Pan, Genxing ; Hussain, Qaiser ; Li, Lianqing ; Zheng, Jinwei ; Zhang, Xuhui

Plant and soil, 2012-02, Vol.351 (1-2), p.263-275 [Periódico revisado por pares]

Dordrecht: Springer

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Título:
Effect of biochar amendment on maize yield and greenhouse gas emissions from a soil organic carbon poor calcareous loamy soil from Central China Plain
Autor: Zhang, Afeng ; Liu, Yuming ; Pan, Genxing ; Hussain, Qaiser ; Li, Lianqing ; Zheng, Jinwei ; Zhang, Xuhui
Assuntos: Agricultural research ; Agricultural soils ; Agrology ; Agronomy. Soil science and plant productions ; Animal, plant and microbial ecology ; Biochar ; Biological and medical sciences ; Biomedical and Life Sciences ; calcareous soils ; Carbon ; Carbon content ; Carbon dioxide ; Chemical, physicochemical, biochemical and biological properties ; Corn ; Crop yields ; Crops ; Ecology ; Emissions ; Environmental aspects ; Fertilization ; Fertilizers ; Forest soils ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Global warming ; Greenhouse gas emissions ; Greenhouse gases ; Greenhouses ; Growth ; Life Sciences ; Loam ; Methane ; Minerals ; Organic carbon ; Organic chemicals ; Organic matter ; Organic soils ; Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries ; Physics, chemistry, biochemistry and biology of agricultural and forest soils ; Plains ; Plant Physiology ; Plant Sciences ; Plant-soil relationships ; Pollutant emissions ; Regular Article ; Soil ; Soil amendments ; Soil organic carbon ; Soil science ; Soil Science & Conservation ; Soil-plant relationships. Soil fertility ; Soil-plant relationships. Soil fertility. Fertilization. Amendments ; Soils ; Soils (calcareous) ; Soils (organic) ; Urea ; Zea mays
É parte de: Plant and soil, 2012-02, Vol.351 (1-2), p.263-275
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: Aims A field experiment was conducted to investigate the effect of biochar on maize yield and greenhouse gases (GHGs) in a calcareous loamy soil poor in organic carbon from Henan, central great plain, China. Methods Biochar was applied at rates of 0, 20 and 40 tha−1 with or without N fertilization. With N fertilization, urea was applied at 300 kg N ha−1, of which 60% was applied as basal fertilizer and 40% as supplementary fertilizer during crop growth. Soil emissions of CO2, CH4 and N2O were monitored using closed chambers at 7 days intervals throughout the whole maize growing season (WMGS). Results Biochar amendments significantly increased maize production but decreased GHGs. Maize yield was increased by 15.8% and 7.3% without N fertilization, and by 8.8% and 12.1% with N fertilization under biochar amendment at 20 tha−1 and 40 tha−1, respectively. Total N2O emission was decreased by 10.7% and by 41.8% under biochar amendment at 20 tha−1 and 40 tha−1 compared to no biochar amendment with N fertilization. The high rate of biochar (40 tha−1) increased the total CO2 emission by 12% without N fertilization. Overall, biochar amendments of 20 tha−1 and 40 tha−1 decreased the total global warming potential (GWP) of CH4 and N2O by 9.8% and by 41.5% without N fertilization, and by 23.8% and 47.6% with N fertilization, respectively. Biochar amendments also decreased soil bulk density and increased soil total N contents but had no effect on soil mineral N. Conclusions These results suggest that application of biochar to calcareous and infertile dry croplands poor in soil organic carbon will enhance crop productivity and reduce GHGs emissions.
Editor: Dordrecht: Springer
Idioma: Inglês

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Effect of biochar amendment on maize yield and greenhouse gas emissions from a soil organic carbon poor calcareous loamy soil from Central China Plain

Zhang, Afeng ; Liu, Yuming ; Pan, Genxing ; Hussain, Qaiser ; Li, Lianqing ; Zheng, Jinwei ; Zhang, Xuhui

Dordrecht: Springer

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