A simple and easy method to measure ammonia volatilization: Accuracy under field conditions
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Cited by (9)
Greenhouse gas and ammonia emissions from a maize-soybean rotation under no-till as affected by intercropping with forage grass and nitrogen fertilization
2024, Agricultural and Forest MeteorologyExploring use of a commercial passive sampler in a closed static chamber to measure ammonia volatilization
2022, Environmental PollutionCitation Excerpt :A static chamber is typically placed on the soil surface and without air flow through the head-space, whereas air can be pumped through the outlet of a dynamic chamber (Kissel et al., 1977; Wang et al., 2021; Yang et al., 2019a). The static chamber methods tend to underestimate the NH3 volatilization compared to the micrometeorological or wind tunnel methods (Miola et al., 2015), but a correction factor may be quantified and applied to correct the estimation (Martins et al., 2021a,b). Furthermore, the chamber methods are practical for conducting replicated multi-treatments in pots or small field sublots because the sampled air volume is confined within a chamber, and, thus, limiting contamination from adjacent treatments (Jantalia et al., 2012; Ni et al., 2014; Wang et al., 2018; Yang et al., 2013).
Towards robust on-site ammonia emission measuring techniques based on inverse dispersion modeling
2021, Agricultural and Forest MeteorologyCitation Excerpt :It is necessary to evaluate and tune the NH3 measuring techniques available in the semi-arid climatic conditions and discern their potential uses to reach this objective. The importance of assessing measurement techniques in a regional-based approach relies on the fact that the effectiveness of both measurement devices (e.g. acid bubblers) and calculation methods could be affected by specific meteorological conditions, e.g., passive badge-type samplers can be sensitive to wind conditions (Tang et al., 2001); in semiopen passive chambers, trapping efficiency requires experimental cross-calibration against recognized reference methods under local weather and agronomic patterns (Martins et al., 2021) and high atmospheric stability strongly affects assumptions made in estimating ammonia fluxes by dispersion modeling (Theobald et al., 2015). Enclosure methods such as closed and semiopen passive chambers or wind tunnels are frequently used in small plots on bare or prairie soils by the scientific community (Sanz-Cobena et al., 2011).
Co-application of biochar and compost with decreased N fertilizer reduced annual ammonia emissions in wetland rice
2023, Frontiers in Sustainable Food SystemsEmissions of N<inf>2</inf>O and NH<inf>3</inf> from cattle excreta in grass pastures fertilized with N or mixed with a forage legume
2022, Nutrient Cycling in Agroecosystems