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Agronomy
Special Issues
Intensive Crop Production: Synergic Mitigation of Pollutants and Carbon Emission
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Intensive Crop Production: Synergic Mitigation of Pollutants and Carbon Emission

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Farming Sustainability".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 3927

Special Issue Editors

Prof. Dr. Xiaobo Qin

E-Mail Website
Guest Editor
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: climate change; GHG mitigation; carbon sequestration
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Sheng Zhou

E-Mail Website
Guest Editor
Shanghai Academy of Agricultural Sciences, Shanghai, China
Interests: low-carbon agriculture and environmental ecological engineering

Special Issue Information

Dear Colleagues,

[*] Background and history of this topic: The high-quality development of modern agriculture is the cornerstone China's food security and the primary task of national economic development. Low-carbon green intensive production is a prominent feature of modern agriculture. In the context of the national dual-carbon strategy and global climate change, how to efficiently use agricultural resources and achieve synergy in pollutants and carbon reduction is a major challenge.

[*] Aim and scope of the Special Issue: It is essential to explore the pathway for achieving intensive agricultural production, as well as boosting productivity, reducing nutrient and GHG losses, improving biodiversity and soil health, controlling agricultural pollution.

[*] Cutting-edge research: Modern agronomy, meteorology, climate change, molecular biology, environmental science.

[*] What kind of papers we are soliciting: This Special Issue welcomes theoretical discussions, innovative methods, applied case studies, review articles, and policy papers that connect carbon neutrality and agricultural management or pollution control.

Prof. Dr. Xiaobo Qin
Prof. Dr. Sheng Zhou
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Agronomy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • intensive crop production
  • carbon sequestration
  • GHG mitigation
  • pollutant control

Published Papers (3 papers)

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Research

10 pages, 1735 KiB  
Article
Ecological and Economic Benefits of Greenhouse Gas Emission Reduction Strategies in Rice Production: A Case Study of the Southern Rice Propagation Base in Hainan Province
by Xianxian Zhang, Junguo Bi, Weikang Wang, Donglai Sun, Huifeng Sun, Qingyu Bi, Cong Wang, Jining Zhang, Sheng Zhou and Lijun Luo
Agronomy 2024, 14(1), 222; https://doi.org/10.3390/agronomy14010222 - 20 Jan 2024
Viewed by 953
Abstract
Developing tailored emission reduction strategies and estimating their potential is crucial for achieving low-carbon rice production in a specific region, as well as for advancing China’s dual carbon goals in the agricultural sector. By utilizing water-saving and drought-resistant rice (WDR) with enhanced water [...] Read more.
Developing tailored emission reduction strategies and estimating their potential is crucial for achieving low-carbon rice production in a specific region, as well as for advancing China’s dual carbon goals in the agricultural sector. By utilizing water-saving and drought-resistant rice (WDR) with enhanced water and nitrogen utilization efficiency, the mitigation strategies were constructed for rice production systems, and their potential for emission reduction was estimated in the southern rice propagation base of Hainan Province. This study revealed that the implementation of a reduction strategy, which involves dry direct seeding and dry cultivation, combined with a 53% reduction in nitrogen fertilizer, can effectively synergize the mitigation of methane (CH4) and nitrous oxide (N2O) emissions from rice paddies. Compared with traditional flooded rice cultivation, this integrated approach exhibits an impressive potential for reducing net greenhouse gas (GHG) emissions by 97% while simultaneously doubling economic benefits. Moreover, when combined with plastic film mulching, the strategy not only sustains rice yields but also achieves a remarkable emission reduction of 92%, leading to a fourfold increase in economic benefits. Our study provides a comprehensive low-carbon sustainable development strategy for rice production in the southern rice propagation base of Hainan Province and offers valuable insights for researching GHG emissions in other regions or crops. These emission reduction pathways and the assessment method could contribute to the realization of low-carbon agriculture. Full article
(This article belongs to the Special Issue Intensive Crop Production: Synergic Mitigation of Pollutants and Carbon Emission)
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19 pages, 4480 KiB  
Article
Evaluation of Methane Emission Reduction Potential of Water Management and Chinese Milk Vetch Planting in Hunan Paddy Rice Fields
by Zhiwei Zhang, Jianling Fan, Yunfan Wan, Jinming Wang, Yulin Liao, Yanhong Lu and Xiaobo Qin
Agronomy 2023, 13(7), 1799; https://doi.org/10.3390/agronomy13071799 - 5 Jul 2023
Viewed by 1434
Abstract
In order to explore the methane reduction potential with two scenarios of water management and Chinese Milk Vetch return, we calculated the methane emissions of Hunan Province rice fields in 2019 using the SECTOR tool based on Excel and released by the International [...] Read more.
In order to explore the methane reduction potential with two scenarios of water management and Chinese Milk Vetch return, we calculated the methane emissions of Hunan Province rice fields in 2019 using the SECTOR tool based on Excel and released by the International Rice Research Institute. Thus, we preliminarily established an agricultural carbon emissions monitoring, reporting, and verification (MRV) system. The results showed that: (1) There was significant spatial variation in methane emissions in Hunan rice fields, with higher emissions in both the south and north and lower emissions in the east and west. Late rice was the main contributor to methane emissions, and the cities of Changde, Hengyang, Yueyang, and Shaoyang were high-emission areas due to differences in rice planting types and areas. Compared with flooding (1275.75 Gg), optimized water management measures (mid-drainage and AWD irrigation) reduced methane emissions by 29~45% (905.79 and 701.66 Gg, respectively). (2) Under the same nitrogen input conditions, compared with a solely straw return (375.24 Gg), combining green manure with straw return could partially reduce methane emissions from Hunan super hybrid rice (327.63 Gg). Compared with the control fertilizers (404.28 Gg), the reduction rates of winter-planted Chinese Milk Vetch, the return of rice straw, and the incorporation of both Chinese Milk Vetch and straw were 7.19%, 13.01%, and 18.96%, respectively. Based on scientific accounting tools, a preliminary MRV system for rice field carbon emissions was established. Under the national demand for reducing fertilizer use and increasing efficiency, equal nitrogen organic amendments could effectively contribute to the development of green, low-carbon, and high-quality agriculture. Full article
(This article belongs to the Special Issue Intensive Crop Production: Synergic Mitigation of Pollutants and Carbon Emission)
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14 pages, 2155 KiB  
Article
Optimal Straw Retention Strategies for Low-Carbon Rice Production: 5 Year Results of an In Situ Trial in Eastern China
by Cong Wang, Huifeng Sun, Xianxian Zhang, Jining Zhang and Sheng Zhou
Agronomy 2023, 13(6), 1456; https://doi.org/10.3390/agronomy13061456 - 25 May 2023
Cited by 1 | Viewed by 1186
Abstract
Crop straw retention in the rice-based rotation cropland has been widely accepted as an effective method to improve soil quality in China. Rice–wheat rotation cropland is one the most prevalent rice-based rotation patterns, where it only exploits a small proportion of the total [...] Read more.
Crop straw retention in the rice-based rotation cropland has been widely accepted as an effective method to improve soil quality in China. Rice–wheat rotation cropland is one the most prevalent rice-based rotation patterns, where it only exploits a small proportion of the total agricultural land yet feeds the majority of the Chinese population. Previous studies indicated that the incorporation of fore-rotating crop straw can effectively facilitate soil carbon sequestration in rice paddy fields. However, the application of crop straw may increase methane (CH4) emissions from rice paddies due to the anaerobic soil condition. To mitigate CH4 emissions from rice paddies while still preserving their soil carbon sequestration ability, a field experiment was conducted in the 2012–2016 rice growing seasons to determine the optimal low-carbon crop straw retention strategy. Five treatments with different wheat straw retention strategies were employed in this study, including non-fertilization and non-straw (Control), conventional fertilization without straw incorporation (CF), conventional fertilization with wheat straw incorporation (FS), slow-release fertilizer combined with wheat straw (SFS), and conventional fertilization with wheat-straw-derived biochar (FB). The results indicated that FS, SFS, and FB treatments significantly increased soil carbon sequestration in comparison with CF treatment. However, the increment of soil carbon sequestration was offset by raw wheat straw induced excess CH4 emissions under FS and SFS treatments. In contrast, the application of wheat-straw-derived biochar significantly promoted soil carbon sequestration, but showed no significant effect on CH4 emissions. Collectively, to the farmers, who aim to achieve agricultural carbon neutrality, the application of straw-derived biochar is worthy of consideration in rice cultivation processes. Full article
(This article belongs to the Special Issue Intensive Crop Production: Synergic Mitigation of Pollutants and Carbon Emission)
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