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Surface application of fertilizers and residue biochar on N2O emission from Japanese pear orchard soil

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  • Aung Zaw OO

    (Institutefor Agro-Environmental Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
    Natural Science Research Unit, Tokyo Gakugei University, Koganei, Tokyo, Japan)

  • Takeru GONAI

    (Horticultural Institute, Ibaraki Agricultural Center, Kasama, Ibaraki, Japan)

  • Shigeto SUDO

    (Institutefor Agro-Environmental Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan)

  • Khin Thuzar WIN

    (Central Regional Agricultural Research Center, National Agriculture and Food Research Organization, Tsukuba, Japan)

  • Akira SHIBATA

    (Ritsumeikan University OIC Research Organization, Ibaraki, Osaka, Japan)

Abstract

This study investigated soil N2O emissions following the application of fertilizers and pruning residue biochar on the soil surface of the Japanese pear orchard. Completely randomized design was laid out with four treatments: (1) control (unfertilized); (2) pig manure 300 kg N/ha and ammonium sulfate 200 kg N/ha with no biochar (F + BC0); (3) the same amount of manure and nitrogen (N) fertilizer with 2 t/ha biochar (F + BC2), and (4) with 10 t/ha biochar (F + BC10). The results showed that high N2O fluxes were observed after fertilization. Soil temperature and moisture were major controlling factors for N2O emission from the orchard soil. The lowest cumulative N2O emission (0.46 kg N/ha) was observed in the unfertilized control. Application of manure and N fertilizer significantly increased cumulative N2O emission compared to unfertilized control. Surface application of biochar (1.68 and 1.77 kg N/ha in F + BC2 and F + BC10, respectively) had no effect on soil N2O emission compared to F + BC0 (1.68 kg N/ha). Our results indicated that biochar pyrolyzed from orchard pruning residues can be returned to orchard soil as surface application without affecting soil N2O emissions.

Suggested Citation

  • Aung Zaw OO & Takeru GONAI & Shigeto SUDO & Khin Thuzar WIN & Akira SHIBATA, 2018. "Surface application of fertilizers and residue biochar on N2O emission from Japanese pear orchard soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(12), pages 597-604.
    • Handle: RePEc:caa:jnlpse:v:64:y:2018:i:12:id:114-2018-pse
    DOI: 10.17221/114/2018-PSE
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    References listed on IDEAS

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    1. Yo Toma & Takeshi Higuchi & Osamu Nagata & Yasuhiko Kato & Tooru Izumiya & Shingo Oomori & Hideto Ueno, 2017. "Efflux of Soil Nitrous Oxide from Applied Fertilizer Containing Organic Materials in Citrus unshiu Field in Southwestern Japan," Agriculture, MDPI, vol. 7(2), pages 1-11, February.
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    Cited by:

    1. Bangliang Deng & Fangfang Shen & Xiaomin Guo & Evan Siemann & Ling Zhang, 2022. "Urease inhibitor and biochar independently affected N2O emissions from Camellia oleifera soils," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 68(9), pages 424-430.

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