N2O emissions from a loamy soil cropped with winter wheat as affected by N-fertilizer amount and nitrification inhibitor

15921 12 87630 3 249279 document 87630 Guzman et al 2019 N2O emissions from a loamy soil cropped with winter wheat.pdf application/pdf be8688cb9ccbdfbda879671543c298bf MD5 6596903 2019-05-27 10:45:34 https://pure.iiasa.ac.at/id/eprint/15921/1/Guzman%20et%20al%202019%20N2O%20emissions%20from%20a%20loamy%20soil%20cropped%20with%20winter%20wheat.pdf 15921 1 1 application/pdf text en public cc_by_nc_4

Guzman et al 2019 N2O emissions from a loamy soil cropped with winter wheat.pdf

accepted 87631 2 249282 document 87631 lightbox.jpg image/png 667007da2a3282a604f08e57fbecf2b1 MD5 43049 2019-05-27 10:46:02 https://pure.iiasa.ac.at/id/eprint/15921/2/lightbox.jpg 15921 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en staffonly

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/87630 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/87630 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/87630 archive 353 disk0/00/01/59/21 2019-05-27 06:02:33 2021-08-27 17:31:48 2019-05-27 06:02:33 article show Guzman-Bustamante I. Winkler T. Schulz R. Müller T. Mannheim T. Laso Bayas J.C. 2106 0000-0003-2844-3842 Ruser R. N2O emissions from a loamy soil cropped with winter wheat as affected by N-fertilizer amount and nitrification inhibitor pub prog_esm N2O emission; Winter emission; DMPP; Nitrification inhibitor; N fertilizer amount; Winter wheat Nitrogen (N) fertilization leads to the release of reactive N species, which can be detrimental to the environment. Nitrification inhibitors (NIs) are substances capable of retarding the oxidation of ammonium to nitrate, which can increase N use efficiency of applied N fertilizer and decrease N losses such as the release of the greenhouse gas nitrous oxide (N2O). Adaption of N fertilizer amount to plant demand might also decrease N surpluses and thus lower N2O emissions. We investigated the effects of N fertilizer amount (0, 120, 180, and 240 kg N ha−1 a−1) and the use of the NI 3,4-dimethylpyrazol phosphate, DMPP, on annual N2O emission from a soil cropped with winter wheat in a 2 year field experiment. N2O fluxes were affected by N level and by use of DMPP with higher fluxes under high N amounts and treatments without NI. Application of DMPP led to a reduction of annual emissions by 45%. Interestingly, also winter emissions (8–12 months after N fertilization) were decreased by DMPP. In this period, a complete degradation of DMPP was assumed. The reason for this effect remains unclear. Wheat yield and quality were unaffected by DMPP, whereas grain yield was increased with N fertilizer amount in the first year. Nevertheless, response curves of grain yield-related N2O emissions over all data showed lower optimal N fertilizer doses when DMPP was used. Application of DMPP at suboptimal N rates could help to achieve a better profitability with simultaneous reduction of the product scaled emission. 2019-05 published Springer 10.1007/s10705-019-10000-9 172 public Nutrient Cycling in Agroecosystems 114 173-191 TRUE 1573-0867 FALSE no info:eu-repo/semantics/article