Evaluating Gas Emissions from Different Feed Cropping Systems in the North China Plain: A Two-Year Field Measurement

The cultivation of silage crops is encouraged to enhance the connection between crop and livestock production in the North China Plain (NCP). A field experiment was designed to evaluate the ammonia (NH3), nitrous oxide (N2O), and methane (CH4) emissions of five silage cropping systems, including tri...

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Bibliographic Details
Published in:Atmosphere 2022-07, Vol.13 (7), p.1153
Main Authors: Liao, Wenhua, Liu, Chunjing, Zhang, Xinxing, Wang, Shanshan, Fan, Yujing, Gao, Zhiling
Format: Article
Language:English
Subjects:
Agricultural production
Ammonia
Biomass
Corn
Crop production
crop rotation
Cropping systems
Crops
crude protein
emission intensity
Emissions
Evaluation
Feeds
Fertilizers
Forage
Forage crops
Gases
Greenhouse gases
Irrigation
Livestock
Livestock production
Methane
Nitrogen
Nitrous oxide
Polyvinyl chloride
Precipitation
Productivity
Proteins
Silage
Summer
Suspended particulate matter
Triticale
Wheat
Winter wheat
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Summary:The cultivation of silage crops is encouraged to enhance the connection between crop and livestock production in the North China Plain (NCP). A field experiment was designed to evaluate the ammonia (NH3), nitrous oxide (N2O), and methane (CH4) emissions of five silage cropping systems, including triticale-summer maize (Tr-SuM), triticale-spring maize (Tr-SpM), triticale-double forage maize (Tr-DFM), double forage maize (DFM), and winter wheat-summer maize (WW-SuM), as well as their biomass- and crude protein-scaled emission intensities, with respect to NH3 and greenhouse gas (GHG). The annual nitrogen (N) emissions through NH3, N2O, and CH4 emissions of these systems were 13.43–23.77 kg ha−1 (4.2–5.6% of N fertilizer input), 3.43–4.56 kg ha−1 (0.75–1.08% of N fertilizer input) and 2.10–2.85 kg ha−1, respectively. The total GHG emissions of these systems was dominated by the contributions of N2O. Ranking these systems according to their biomass and crude protein production gave Tr-DFM > DFM > WW-SuM > Tr-SuM and Tr-SpM, their partial factor productivity was in the order of Tr-DFM > WW-SuM > Tr-SuM and Tr-SpM > DFM, and the order of their emission intensity was DFM > Tr-SuM > Tr-DFM > WW-SuM > Tr-SpM. In conclusion, the Tr-DFM needs to be further investigated for its suitability in the NCP, owing to its superior productivity and moderate emission intensities.
ISSN:2073-4433
2073-4433
DOI:10.3390/atmos13071153