Impacts of slurry acidification and injection on fertilizer nitrogen fates in grassland. Schreiber, M., Bazaios, E., Ströbel, B., Wolf, B., Ostler, U., Gasche, R., Schlingmann, M., Kiese, R., & Dannenmann, M. Nutrient Cycling in Agroecosystems, 125(2):171–186, March, 2023. ![Impacts of slurry acidification and injection on fertilizer nitrogen fates in grassland [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Abstract Low nitrogen (N) use efficiency of broadcast slurry application leads to nutrient losses, air and water pollution, greenhouse gas emissions and—in particular in a warming climate—to soil N mining. Here we test the alternative slurry acidification and injection techniques for their mitigation potential compared to broadcast spreading in montane grassland. We determined (1) the fate of 15 N labelled slurry in the plant-soil-microbe system and soil-atmosphere exchange of greenhouse gases over one fertilization/harvest cycle and (2) assessed the longer-term contribution of fertilizer 15 N to soil organic N formation by the end of the growing season. The isotope tracing approach was combined with a space for time climate change experiment. Simulated climate change increased productivity, ecosystem respiration, and net methane uptake irrespective of management, but the generally low N 2 O fluxes remained unchanged. Compared to the broadcast spreading, slurry acidification showed lowest N losses, thus increased productivity and fertilizer N use efficiency (38% 15 N recovery in plant aboveground plant biomass). In contrast, slurry injection showed highest total fertilizer N losses, but increased fertilization-induced soil organic N formation by 9–12 kg N ha −1 season −1 . Slurry management effects on N 2 O and CH 4 fluxes remained negligible. In sum, our study shows that the tested alternative slurry application techniques can increase N use efficiency and/or promote soil organic N formation from applied fertilizer to a remarkable extent. However, this is still not sufficient to prevent soil N mining mostly resulting from large plant N exports that even exceed total fertilizer N inputs.
@article{schreiber_impacts_2023,
title = {Impacts of slurry acidification and injection on fertilizer nitrogen fates in grassland},
volume = {125},
issn = {1385-1314, 1573-0867},
url = {https://link.springer.com/10.1007/s10705-022-10239-9},
doi = {10.1007/s10705-022-10239-9},
abstract = {Abstract
Low nitrogen (N) use efficiency of broadcast slurry application leads to nutrient losses, air and water pollution, greenhouse gas emissions and—in particular in a warming climate—to soil N mining. Here we test the alternative slurry acidification and injection techniques for their mitigation potential compared to broadcast spreading in montane grassland. We determined (1) the fate of
15
N labelled slurry in the plant-soil-microbe system and soil-atmosphere exchange of greenhouse gases over one fertilization/harvest cycle and (2) assessed the longer-term contribution of fertilizer
15
N to soil organic N formation by the end of the growing season. The isotope tracing approach was combined with a space for time climate change experiment. Simulated climate change increased productivity, ecosystem respiration, and net methane uptake irrespective of management, but the generally low N
2
O fluxes remained unchanged. Compared to the broadcast spreading, slurry acidification showed lowest N losses, thus increased productivity and fertilizer N use efficiency (38\%
15
N recovery in plant aboveground plant biomass). In contrast, slurry injection showed highest total fertilizer N losses, but increased fertilization-induced soil organic N formation by 9–12 kg N ha
−1
season
−1
. Slurry management effects on N
2
O and CH
4
fluxes remained negligible. In sum, our study shows that the tested alternative slurry application techniques can increase N use efficiency and/or promote soil organic N formation from applied fertilizer to a remarkable extent. However, this is still not sufficient to prevent soil N mining mostly resulting from large plant N exports that even exceed total fertilizer N inputs.},
language = {en},
number = {2},
urldate = {2024-11-15},
journal = {Nutrient Cycling in Agroecosystems},
author = {Schreiber, Mirella and Bazaios, Elpida and Ströbel, Barbara and Wolf, Benjamin and Ostler, Ulrike and Gasche, Rainer and Schlingmann, Marcus and Kiese, Ralf and Dannenmann, Michael},
month = mar,
year = {2023},
pages = {171--186},
}
Downloads: 0
{"_id":"FRpRfSgpjEzDR6CAG","bibbaseid":"schreiber-bazaios-strbel-wolf-ostler-gasche-schlingmann-kiese-etal-impactsofslurryacidificationandinjectiononfertilizernitrogenfatesingrassland-2023","author_short":["Schreiber, M.","Bazaios, E.","Ströbel, B.","Wolf, B.","Ostler, U.","Gasche, R.","Schlingmann, M.","Kiese, R.","Dannenmann, M."],"bibdata":{"bibtype":"article","type":"article","title":"Impacts of slurry acidification and injection on fertilizer nitrogen fates in grassland","volume":"125","issn":"1385-1314, 1573-0867","url":"https://link.springer.com/10.1007/s10705-022-10239-9","doi":"10.1007/s10705-022-10239-9","abstract":"Abstract Low nitrogen (N) use efficiency of broadcast slurry application leads to nutrient losses, air and water pollution, greenhouse gas emissions and—in particular in a warming climate—to soil N mining. Here we test the alternative slurry acidification and injection techniques for their mitigation potential compared to broadcast spreading in montane grassland. We determined (1) the fate of 15 N labelled slurry in the plant-soil-microbe system and soil-atmosphere exchange of greenhouse gases over one fertilization/harvest cycle and (2) assessed the longer-term contribution of fertilizer 15 N to soil organic N formation by the end of the growing season. The isotope tracing approach was combined with a space for time climate change experiment. Simulated climate change increased productivity, ecosystem respiration, and net methane uptake irrespective of management, but the generally low N 2 O fluxes remained unchanged. Compared to the broadcast spreading, slurry acidification showed lowest N losses, thus increased productivity and fertilizer N use efficiency (38% 15 N recovery in plant aboveground plant biomass). In contrast, slurry injection showed highest total fertilizer N losses, but increased fertilization-induced soil organic N formation by 9–12 kg N ha −1 season −1 . Slurry management effects on N 2 O and CH 4 fluxes remained negligible. In sum, our study shows that the tested alternative slurry application techniques can increase N use efficiency and/or promote soil organic N formation from applied fertilizer to a remarkable extent. However, this is still not sufficient to prevent soil N mining mostly resulting from large plant N exports that even exceed total fertilizer N inputs.","language":"en","number":"2","urldate":"2024-11-15","journal":"Nutrient Cycling in Agroecosystems","author":[{"propositions":[],"lastnames":["Schreiber"],"firstnames":["Mirella"],"suffixes":[]},{"propositions":[],"lastnames":["Bazaios"],"firstnames":["Elpida"],"suffixes":[]},{"propositions":[],"lastnames":["Ströbel"],"firstnames":["Barbara"],"suffixes":[]},{"propositions":[],"lastnames":["Wolf"],"firstnames":["Benjamin"],"suffixes":[]},{"propositions":[],"lastnames":["Ostler"],"firstnames":["Ulrike"],"suffixes":[]},{"propositions":[],"lastnames":["Gasche"],"firstnames":["Rainer"],"suffixes":[]},{"propositions":[],"lastnames":["Schlingmann"],"firstnames":["Marcus"],"suffixes":[]},{"propositions":[],"lastnames":["Kiese"],"firstnames":["Ralf"],"suffixes":[]},{"propositions":[],"lastnames":["Dannenmann"],"firstnames":["Michael"],"suffixes":[]}],"month":"March","year":"2023","pages":"171–186","bibtex":"@article{schreiber_impacts_2023,\n\ttitle = {Impacts of slurry acidification and injection on fertilizer nitrogen fates in grassland},\n\tvolume = {125},\n\tissn = {1385-1314, 1573-0867},\n\turl = {https://link.springer.com/10.1007/s10705-022-10239-9},\n\tdoi = {10.1007/s10705-022-10239-9},\n\tabstract = {Abstract\n \n Low nitrogen (N) use efficiency of broadcast slurry application leads to nutrient losses, air and water pollution, greenhouse gas emissions and—in particular in a warming climate—to soil N mining. Here we test the alternative slurry acidification and injection techniques for their mitigation potential compared to broadcast spreading in montane grassland. We determined (1) the fate of\n 15\n N labelled slurry in the plant-soil-microbe system and soil-atmosphere exchange of greenhouse gases over one fertilization/harvest cycle and (2) assessed the longer-term contribution of fertilizer\n 15\n N to soil organic N formation by the end of the growing season. The isotope tracing approach was combined with a space for time climate change experiment. Simulated climate change increased productivity, ecosystem respiration, and net methane uptake irrespective of management, but the generally low N\n 2\n O fluxes remained unchanged. Compared to the broadcast spreading, slurry acidification showed lowest N losses, thus increased productivity and fertilizer N use efficiency (38\\%\n 15\n N recovery in plant aboveground plant biomass). In contrast, slurry injection showed highest total fertilizer N losses, but increased fertilization-induced soil organic N formation by 9–12 kg N ha\n −1\n season\n −1\n . Slurry management effects on N\n 2\n O and CH\n 4\n fluxes remained negligible. In sum, our study shows that the tested alternative slurry application techniques can increase N use efficiency and/or promote soil organic N formation from applied fertilizer to a remarkable extent. However, this is still not sufficient to prevent soil N mining mostly resulting from large plant N exports that even exceed total fertilizer N inputs.},\n\tlanguage = {en},\n\tnumber = {2},\n\turldate = {2024-11-15},\n\tjournal = {Nutrient Cycling in Agroecosystems},\n\tauthor = {Schreiber, Mirella and Bazaios, Elpida and Ströbel, Barbara and Wolf, Benjamin and Ostler, Ulrike and Gasche, Rainer and Schlingmann, Marcus and Kiese, Ralf and Dannenmann, Michael},\n\tmonth = mar,\n\tyear = {2023},\n\tpages = {171--186},\n}\n\n\n\n","author_short":["Schreiber, M.","Bazaios, E.","Ströbel, B.","Wolf, B.","Ostler, U.","Gasche, R.","Schlingmann, M.","Kiese, R.","Dannenmann, M."],"key":"schreiber_impacts_2023","id":"schreiber_impacts_2023","bibbaseid":"schreiber-bazaios-strbel-wolf-ostler-gasche-schlingmann-kiese-etal-impactsofslurryacidificationandinjectiononfertilizernitrogenfatesingrassland-2023","role":"author","urls":{"Paper":"https://link.springer.com/10.1007/s10705-022-10239-9"},"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/tereno","dataSources":["cq3J5xX6zmBvc2TQC"],"keywords":[],"search_terms":["impacts","slurry","acidification","injection","fertilizer","nitrogen","fates","grassland","schreiber","bazaios","ströbel","wolf","ostler","gasche","schlingmann","kiese","dannenmann"],"title":"Impacts of slurry acidification and injection on fertilizer nitrogen fates in grassland","year":2023}