2018
DOI: 10.1590/18069657rbcs20170138
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Nitrous Oxide Emissions in a Wheat/Corn Succession Combining Dairy Slurry and Urea as Nitrogen Sources

Abstract: The impact on nitrous oxide (N 2 O) emissions caused by combining dairy slurry (DS) and urea to supply crops with nitrogen (N) is still not well characterized. The main objective of this study was to compare the differences between N 2 O emissions in the cases of exclusive use of urea and the combined use of DS and urea as N sources to no-tillage wheat and corn. We also compared N 2 O emissions between two DS application methods (surface-broadcast vs. injection), as well as the addition of dicyandiamide (DCD) … Show more

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Cited by 5 publications
(3 citation statements)
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“…The cumulative nitrous oxide emissions (Table 2) of IR, US and ADS were similar to those of mineral fertilizer applied to stubble or bare soil and slurry injection (IN), the widely recommended practice for soil slurry application. The absence of differences between dairyslurry-based treatments and mineral fertilizers on N 2 O emissions is in agreement with the results reported in [52]. RDS cumulative emissions were lower than those associated with the above-mentioned strategies, although the reason is probably the previously high N loss through ammonia volatilization, as seen in Table 1.…”
Section: Greenhouse Gas Emissionssupporting
confidence: 90%
See 1 more Smart Citation
“…The cumulative nitrous oxide emissions (Table 2) of IR, US and ADS were similar to those of mineral fertilizer applied to stubble or bare soil and slurry injection (IN), the widely recommended practice for soil slurry application. The absence of differences between dairyslurry-based treatments and mineral fertilizers on N 2 O emissions is in agreement with the results reported in [52]. RDS cumulative emissions were lower than those associated with the above-mentioned strategies, although the reason is probably the previously high N loss through ammonia volatilization, as seen in Table 1.…”
Section: Greenhouse Gas Emissionssupporting
confidence: 90%
“…The temperature was recorded at each sampling point. Gas measurements were carried out on days 2,6,9,15,17,21,24,29,34,44,52,58,63,73,77,85, 99 and 108 after the start of the experiment.…”
Section: Ghg Experiments (E-ghg)mentioning
confidence: 99%
“…De Klein and Eckard, (2008) and Ning et al (2018) stated that DCD proved effective in reducing N2O emissions from nitrogen fertilizers, urine (up to 90%), or livestock slurry, retaining N in the soil in the less mobile ammonium (NH4 + ) form. Many reports are available claiming the nitrification inhibition by DCD ranging from 10 to 53 % compared with conventional urea (Aita et al, 2018;Pathak et al, 2001;Hu et al, 2020;Raza et al, 2019).…”
Section: Nitrous Oxide Emission In Rice and Wheatmentioning
confidence: 99%