Nitrous oxide emissions from wetland soil amended with two types of cattle manure
Purpose The implications of increased applications of high quality cattle manure to agricultural systems in Africa on N2O emissions are still only partially understood. Methods A field experiment was carried out in a wetland in central Zimbabwe to determine the effects of cattle manure quality on em...
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OICC Press
2024-01-01
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| Series: | International Journal of Recycling of Organic Waste in Agriculture |
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| Online Access: | https://oiccpress.com/ijrowa/article/view/3160 |
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| author | Johnson Masaka Justice Nyamangara Menas Wuta |
| author_facet | Johnson Masaka Justice Nyamangara Menas Wuta |
| author_sort | Johnson Masaka |
| collection | DOAJ |
| description | Purpose The implications of increased applications of high quality cattle manure to agricultural systems in Africa on N2O emissions are still only partially understood. Methods A field experiment was carried out in a wetland in central Zimbabwe to determine the effects of cattle manure quality on emissions of N2O during the growing seasons of rape and tomato crops. The static chamber and gas chromatography techniques were used to capture and measure fluxes of N2O. Results The substitution of low N by high N manure significantly increased N2O fluxes and total N lost through N2O emission. Emissions of N2O increase with increasing content of N in applied manure. Conclusions Given that N2O in agricultural soil is produced predominantly through the microbial transformations of inorganic N, the potential of a soil to emit N2O increases with the increasing availability of N and consequently the N content in applied manure. The applications of lower rate of high and low N manures were followed by lower emissions of N2O, a result that is favorable to the objective of lowering the contribution of agricultural sources to the global greenhouse gas emissions. The loss of N in emissions of N2O expressed per unit mass of harvested dry matter yield decreases with increasing manure application, dry matter yield and N uptake. Improved agronomic practices for increased crop productivity can be used as a mitigation factor for reducing the contribution of agriculture in the global emissions of N2O. |
| format | Article |
| id | doaj-art-72cd9d9806c649dd93b94ceafe77e584 |
| institution | Kabale University |
| issn | 2195-3228 2251-7715 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | OICC Press |
| record_format | Article |
| series | International Journal of Recycling of Organic Waste in Agriculture |
| spelling | doaj-art-72cd9d9806c649dd93b94ceafe77e5842025-02-03T12:00:02ZengOICC PressInternational Journal of Recycling of Organic Waste in Agriculture2195-32282251-77152024-01-015210.1007/s40093-016-0123-9Nitrous oxide emissions from wetland soil amended with two types of cattle manureJohnson Masaka0Justice Nyamangara1Menas Wuta2Department of Soil Science and Agricultural Engineering, Faculty of Agriculture, University of Zimbabwe, Harare, ZimbabweDepartment of Environmental Science and Technology, School of Agricultural Sciences and Technology, Chinhoyi University of Technology, Chinhoyi, ZimbabweDepartment of Soil Science and Agricultural Engineering, Faculty of Agriculture, University of Zimbabwe, Harare, ZimbabwePurpose The implications of increased applications of high quality cattle manure to agricultural systems in Africa on N2O emissions are still only partially understood. Methods A field experiment was carried out in a wetland in central Zimbabwe to determine the effects of cattle manure quality on emissions of N2O during the growing seasons of rape and tomato crops. The static chamber and gas chromatography techniques were used to capture and measure fluxes of N2O. Results The substitution of low N by high N manure significantly increased N2O fluxes and total N lost through N2O emission. Emissions of N2O increase with increasing content of N in applied manure. Conclusions Given that N2O in agricultural soil is produced predominantly through the microbial transformations of inorganic N, the potential of a soil to emit N2O increases with the increasing availability of N and consequently the N content in applied manure. The applications of lower rate of high and low N manures were followed by lower emissions of N2O, a result that is favorable to the objective of lowering the contribution of agricultural sources to the global greenhouse gas emissions. The loss of N in emissions of N2O expressed per unit mass of harvested dry matter yield decreases with increasing manure application, dry matter yield and N uptake. Improved agronomic practices for increased crop productivity can be used as a mitigation factor for reducing the contribution of agriculture in the global emissions of N2O.https://oiccpress.com/ijrowa/article/view/3160AgricultureGHGsWetlands |
| spellingShingle | Johnson Masaka Justice Nyamangara Menas Wuta Nitrous oxide emissions from wetland soil amended with two types of cattle manure International Journal of Recycling of Organic Waste in Agriculture Agriculture GHGs Wetlands |
| title | Nitrous oxide emissions from wetland soil amended with two types of cattle manure |
| title_full | Nitrous oxide emissions from wetland soil amended with two types of cattle manure |
| title_fullStr | Nitrous oxide emissions from wetland soil amended with two types of cattle manure |
| title_full_unstemmed | Nitrous oxide emissions from wetland soil amended with two types of cattle manure |
| title_short | Nitrous oxide emissions from wetland soil amended with two types of cattle manure |
| title_sort | nitrous oxide emissions from wetland soil amended with two types of cattle manure |
| topic | Agriculture GHGs Wetlands |
| url | https://oiccpress.com/ijrowa/article/view/3160 |
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