Optimal Coupling of Straw and Synthetic Fertilizers Incorporation on Soil Properties, Active Fe Dynamics, and Greenhouse Gas Emission in Jasminum sambac (L.) Field in Southeastern China

Chun Wang, Qingwen Min, Abbas Ali Abid, Jordi Sardans, Honghui Wu, Derrick Yuk Fo Lai, Josep Peñuelas and Weiqi Wang
Additional contact information
Chun Wang: Institute of Geography, Fujian Normal University, Fuzhou 350007, China
Qingwen Min: Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
Abbas Ali Abid: Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Zhejiang University, Hangzhou 310058, China
Jordi Sardans: CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08913 Bellaterra, Catalonia, Spain
Honghui Wu: Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Derrick Yuk Fo Lai: Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong, China
Josep Peñuelas: CSIC, Global Ecology Unit CREAF-CSIC-UAB, 08913 Bellaterra, Catalonia, Spain
Weiqi Wang: Institute of Geography, Fujian Normal University, Fuzhou 350007, China

Sustainability, 2019, vol. 11, issue 4, 1-21

Abstract: In agriculture, synthetic fertilizers have played a key role in enhancing food production and keeping the world’s population adequately fed. China’s participation is essential to global efforts in reducing greenhouse gas (GHG) emissions because it is the largest producer and consumer of synthetic fertilizers. A field experiment was conducted in a Jasminum sambac (L.) field to evaluate the impact different doses of fertilizers (half, standard, and double) and their combination with straw on ecosystem (including crop plants and soil) GHG emissions. The results showed that in comparison with the control or straw treatments, the straw + standard fertilizer treatment increased the soil water content. The fertilizer treatments decreased the soil pH, but the straw and combination treatments, especially the straw + standard fertilizer treatment, had higher soil pH in comparison with the fertilizer treatment. The active soil Fe (Fe 2+ and Fe 3+ ) concentration was slightly increased in the straw + standard fertilizer treatment in comparison with the control. Moreover, fertilizer increased the CO 2 emission, and we detected a positive interaction between the straw application and the double fertilization dose that increased CO 2 emission, but the straw + standard fertilizer treatment decreased it. Fertilizer decreased CH 4 and N 2 O emissions, but when straw and fertilizer treatments were applied together, this increased CH 4 and N 2 O emissions. Overall, considering the soil properties and GHG emissions, the straw + standard fertilizer treatment was the best method to enhance soil water retention capacity, improve soil acid, and mitigate greenhouse gas emissions for sustainable management of J. sambac dry croplands.

Keywords: soil properties; GHG emission; synthetic fertilizer; straw; Jasminum sambac (L.) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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