A Rapid Method for Measuring Feces Ammonia‐Nitrogen and Carbon Dioxide‐Carbon Emissions and Decomposition Rate Constants

Chang, Julia Yu-Fong; Clay, David E.; Clay, Sharon A.; Smart, Alexander J.; Ohrtman, Michelle K.

doi:10.2134/agronj2016.08.0468

Cited by 6 publications

(6 citation statements)

References 53 publications

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“…For example, Chang et al. (2017) demonstrated that increasing the soil temperature from 15 to 23 °C increased N 2 O–N emissions nearly sevenfold, from 0.47 to 2.77 kg N ha −1 .…”

Section: Resultsmentioning

confidence: 99%

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CO₂ and N₂O emissions and microbial community structure from fields that include salt‐affected soils

et al. 2021

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Although salinity and sodicity are worldwide problems, information on greenhouse gas (GHG) emissions from agricultural salt-affected soils is scarce. The CO 2 -C and N 2 O-N emissions were quantified from three zones intertwined within a single U.S.northern Great Plains field: a highly productive zone (electrical conductivity with 1:1 soil/water mass ratio [EC 1:1 ] = 0.4 dS m -1 ; sodium adsorption ratio [SAR] = 1.8), a transition zone (moderately salt-affected; EC 1:1 = 1.6 dS m -1 ; SAR = 4.99), and a saline/sodic zone (EC 1:1 = 3.9 dS m -1 ; SAR = 22). In each zone, emissions were measured every 4 h for 7 d in four randomly placed chambers that were treated with two N rates (0 and 224 kg N ha -1 ). The experiment was conducted in 2018 and 2019 during similar seasonal periods. Soil samples taken from treatments after GHG measurement were analyzed for soil inorganic N, and microbial biomass from different communities was quantified using phospholipid fatty acid analysis. Realtime polymerase chain reaction was used to quantify the number of copies of some specific denitrification functional genes. The productive zone had the highest CO 2 -C, the lowest N 2 O-N emissions, and the greatest microbial biomass, whereas the saline/sodic zone had the lowest CO 2 -C, the highest N 2 O-N emissions, and the lowest microbial biomass. Within a zone, urea application did not influence CO 2 -C emissions; however, N 2 O-N emissions from the urea-treated saline/sodic zone were 84 and 57% higher than from the urea-treated productive zone in 2018 and 2019, respectively. The copy number of the nitrite reductase gene, nirS, was 42-fold higher in the saline/sodic zone than in the productive soil, suggesting that the saline/sodic soil had a high potential for denitrification. These findings suggest N 2 O-N emissions could be reduced by not applying N to saline/sodic zones.

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“…For example, Chang et al. (2017) demonstrated that increasing the soil temperature from 15 to 23 °C increased N 2 O–N emissions nearly sevenfold, from 0.47 to 2.77 kg N ha −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Temperature differences among the productivity zones can alter GHG emissions by influencing microbial activity and N 2 O solubility. For example, Chang et al (2017) demonstrated that increasing the soil temperature from 15 to 23˚C increased N 2 O-N emissions nearly sevenfold, from 0.47 to 2.77 kg N ha −1 .…”

Section: Climatic Conditions and Plant Yieldsmentioning

confidence: 99%

CO₂ and N₂O emissions and microbial community structure from fields that include salt‐affected soils

et al. 2021

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“…In spite of these difficulties, obtaining accurate information is critical for estimating the carbon footprint for the entire watershed. One approach to overcome these barriers to conduct research at targeted locations and then using mathematics or a simulation model to calculate area corrected emission estimates (Chang, Clay, Clay, Smart, & Ohrtman, 2017).…”

Section: Findings Relative To Ipcc N 2 O Default Value Of 1% Of Applimentioning

confidence: 99%

Fertilizer timing affects nitrous oxide, carbon dioxide, and ammonia emissions from soil

Thies¹,

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Bruggeman

et al. 2020

Soil Science Soc of Amer J

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The impact of interactions between management and climate on nitrous oxide (N2O), carbon dioxide (CO2), and ammonia (NH3) emissions are not well understood. This study quantified the effect of urea fertilizer application timing on inorganic N movement, immobilization, and the gaseous emissions of N2O‐N, CO2‐C, and NH3‐N. Urea was applied once, at two rates (0 and 224 kg ha−1) on six dates (early fall, 20 Sept. 2017; mid‐fall, 11 Oct. 2017; early winter, 1 Nov. 2017; early spring, 1 May 2018; mid‐spring, 22 May 2018; and early summer, 12 June 2018). Gaseous emissions, soil temperature, and soil moisture were measured every 4 h for 21 consecutive days following urea application. Changes in soil inorganic N contents were used to determine the amount of inorganic N remaining in the soil, nitrification, immobilization/fixation, and leaching. For all fertilizer application dates, the cumulative fertilizer derived N2O‐N emissions for the 21 days following application were <0.05% of the applied N. Fertilizer‐derived N2O‐N emission rates were higher than N2O‐N emission rates in the unfertilized soil in early fall and early summer. Even though the highest net N2O‐N emissions occurred in early spring, the application of fertilizer did not increase emissions. The highest net N2O‐N + NH3‐N emissions occurred in cool soils (early spring) in soils with water filled pore space (>60%). These findings indicate that intergovernmental panel on climate change (IPCC) default value of 1% of applied N for N2O emissions improved by considering the fertilizer application date.

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“…However, in the NGP, grazing‐related soil compaction is not typical because the annual freeze/thaw and wet/dry cycles can reduce this risk (Liebig et al, 2012). Further, livestock waste (feces and urine) returns organic matter and nutrients to the soil, which build the soil structure (Chang et al, 2017; Haynes and Williams, 1993; Soussana et al, 2004).…”

Section: Impacts Of Integrated Crop–livestock Systems On Crop Productmentioning

confidence: 99%

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

et al. 2019

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Integrated crop–livestock systems (ICLSs) can help increase food production while benefiting soils and the environment. This review summarizes recent impacts of ICLSs on crop and livestock production and rural economics and discusses lessons learned in the northern Great Plains (NGP). Research on ICLS conducted in the NGP indicates that the crop residue grazing, swath grazing, and annual forage grazing can positively influence crop production; whereas, livestock performance varies with season, forage nutritive value, and grazing management. Furthermore, ICLSs can reduce the costs and risks of agricultural production. The success of ICLSs in NGP region depends on trade‐offs, planning, economic benefits, policies, regulations, community acceptance, and management skills. The ICLSs could play a strategic role in future agricultural production. The lessons learned from adopting ICLSs in the NGP include the lack of available land for fertilizer (manure) management, that to implement ICLS practices skills and knowledge must be maintained, and ICLS provides an entry point for young farmers and ranchers however capital is needed. These experiences and lessons could be valuable references for producers to adopt ICLSs in the NGP or other regions. Core Ideas Integrated crop–livestock systems positively affect crop production by improving soil health. Common integrated crop–livestock system management techniques can enhance the northern Great Plains crop production. Integrated crop–livestock system livestock performance is impacted by season, forage selection, and management. Integrated crop–livestock systems can increase economic benefits and reduce economic risks. Experiences and lessons in the northern Great Plains could be valuable for other regions to adopt integrated crop–livestock systems.

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A Rapid Method for Measuring Feces Ammonia‐Nitrogen and Carbon Dioxide‐Carbon Emissions and Decomposition Rate Constants

Cited by 6 publications

References 53 publications

CO₂ and N₂O emissions and microbial community structure from fields that include salt‐affected soils

CO₂ and N₂O emissions and microbial community structure from fields that include salt‐affected soils

Fertilizer timing affects nitrous oxide, carbon dioxide, and ammonia emissions from soil

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

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A Rapid Method for Measuring Feces Ammonia‐Nitrogen and Carbon Dioxide‐Carbon Emissions and Decomposition Rate Constants

Cited by 6 publications

References 53 publications

CO2 and N2O emissions and microbial community structure from fields that include salt‐affected soils

CO2 and N2O emissions and microbial community structure from fields that include salt‐affected soils

Fertilizer timing affects nitrous oxide, carbon dioxide, and ammonia emissions from soil

Facilitating Crop–Livestock Reintegration in the Northern Great Plains

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Product

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CO₂ and N₂O emissions and microbial community structure from fields that include salt‐affected soils

CO₂ and N₂O emissions and microbial community structure from fields that include salt‐affected soils