Optimal coupling of straw and synthetic fertilizers incorporation on soil properties, active Fe dynamics, and green house gas emission in Jasminum sambac (L.) field in southeastern China
Wang, Chun (Fujian Normal University. Institute of Geography)
Min, Qingwen (Chinese Academy of Sciences. Institute of Geographical Sciences and Natural Resources Research)
Abid, Abbas Ali (Zhejiang University. Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Wu, Honghui (Chinese Academy of Agricultural Sciences. Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization)
Lai, Derrick Yuk Fo (The Chinese University of Hong Kong. Department of Geography and Resource Management)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Wang, Weiqi (Fujian Normal University. Institute of Geography)

Data:	2019
Resum:	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 (Fe²⁺ and Feᶟ⁺) concentration was slightly increased in the straw + standard fertilizer treatment in comparison with the control. Moreover, fertilizer increased the CO₂ emission, and we detected a positive interaction between the straw application and the double fertilization dose that increased CO₄ emission, but the straw + standard fertilizer treatment decreased it. Fertilizer decreased CH₄ and N₂O emissions, but when straw and fertilizer treatments were applied together, this increased CH₄ and N₂O 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.
Ajuts:	European Commission 610028 Ministerio de Economía y Competitividad CGL2016-79835-P Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1005
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Soil properties ; GHG emission ; Synthetic fertilizer ; Straw ; Jasminum sambac (L.)
Publicat a:	Sustainability, Vol. 11, issue 4 (Feb. 2019) , art. 1092, ISSN 2071-1050

DOI: 10.3390/su11041092

21 p, 2.6 MB

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