Surface application of fertilizers and residue biochar on N2O emission from Japanese pear orchard soil Oo A., Gonai T., Sudo S., Thuzar Win K., Shibata A. (2018): Surface application of fertilizers and residue biochar on N2O emission from Japanese pear orchard soil. Plant Soil Environ., 64: 597-604.
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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.

Akiyama Hiroko, Yan Xiaoyuan, Yagi Kazuyuki (2006): Estimations of emission factors for fertilizer-induced direct N 2 O emissions from agricultural soils in Japan: Summary of available data. Soil Science and Plant Nutrition, 52, 774-787
Ball B.C, McTaggart I.P, Watson C.A (2002): Influence of organic ley–arable management and afforestation in sandy loam to clay loam soils on fluxes of N2O and CH4 in Scotland. Agriculture, Ecosystems & Environment, 90, 305-317
Bremner J.M. (1997): Sources of nitrous oxide in soils. Nutrient Cycling in Agroecosystems, 49: 7–16.
Cayuela M.L., Sánchez-Monedero1 M.A., Roig A., Hanley K., Enders A., Lehmann J. (2013): Biochar and denitrification in soils: When, how much and why does biochar reduce N2O emissions? Scientific Reports, 3: 1732.
Hüppi R., Felber R., Neftel A., Six J., Leifeld J. (2015): Effect of biochar and liming on soil nitrous oxide emissions from a temperate maize cropping system. SOIL, 1, 707-717
Khalid M., Soleman N., Jones D.L. (2007): Grassland plants affect dissolved organic carbon and nitrogen dynamics in soil. Soil Biology and Biochemistry, 39, 378-381
Lehmann Johannes, Gaunt John, Rondon Marco (2006): Bio-char Sequestration in Terrestrial Ecosystems – A Review. Mitigation and Adaptation Strategies for Global Change, 11, 403-427
Oo A.Z., Sudo S., Akiyama H., Win K.T., Shibata A., Yamamoto A., Sano T., Hirono Y. (2018a): Effect of dolomite and biochar addition on N2O and CO2 emissions from acidic tea field soil. PLoS ONE, 13: e0192235.
Oo A.Z., Sudo S., Win K.T., Shibata A., Gonai T. (2018b): Influence of pruning waste biochar and oyster shell on N2O and CO2 emissions from Japanese pear orchard soil. Heliyon, 4: e00568.
Oo A.Z., Sudo S., Win K.T., Shibata A., Sano T., Hirono Y. (2018c): Returning tea pruning residue and its biochar had a contrasting effect on soil N2O and CO2 emissions from tea plantation soil. Atmosphere, 9: 109.
Öquist Mats G., Petrone Kevin, Nilsson Mats, Klemedtsson Leif (2007): Nitrification controls N2O production rates in a frozen boreal forest soil. Soil Biology and Biochemistry, 39, 1809-1811
Perdomo Carlos, Irisarri Pilar, Ernst Oswaldo (2009): Nitrous oxide emissions from an Uruguayan argiudoll under different tillage and rotation treatments. Nutrient Cycling in Agroecosystems, 84, 119-128
Saarnio S., Heimonen K., Kettunen R. (2013): Biochar addition indirectly affects N2O emissions via soil moisture and plant N uptake. Soil Biology and Biochemistry, 58, 99-106
Schjønning Per, Thomsen Ingrid K., Moldrup Per, Christensen Bent T. (2003): Linking Soil Microbial Activity to Water- and Air-Phase Contents and Diffusivities. Soil Science Society of America Journal, 67, 156-
Signor Diana, Cerri Carlos Eduardo Pellegrino (2013): Nitrous oxide emissions in agricultural soils: a review. Pesquisa Agropecuária Tropical, 43, 322-338
Toma Yo, Higuchi Takeshi, Nagata Osamu, Kato Yasuhiko, Izumiya Tooru, Oomori Shingo, Ueno Hideto (2017): Efflux of Soil Nitrous Oxide from Applied Fertilizer Containing Organic Materials in Citrus unshiu Field in Southwestern Japan. Agriculture, 7, 10-
Van Zwieten L., Singh B., Joseph S., Kimber S., Cowie A., Chan K.Y. (2009): Biochar and emissions of non-CO2 greenhouse gases from soil. In: Lehmann J., Joseph S. (eds): Biochar for Environmental Management: Science and Technology. Washington, Earthscan, International Biochar Initiative, 227−249.
Yanai Yosuke, Toyota Koki, Okazaki Masanori (2007): Effects of charcoal addition on N 2 O emissions from soil resulting from rewetting air-dried soil in short-term laboratory experiments. Soil Science and Plant Nutrition, 53, 181-188
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