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Mitigation strategies for soil acidification based on optimal nitrogen management

Frontiers of Agricultural Science and Engineering 2024年第2期11卷 229-242页

作者： Pengshun WANG Donghao XU prakash lakshmanan Yan DENG Qichao ZHU Fusuo ZHANG College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193China National Academy of Agriculture Green Development China Agricultural UniversityBeijing 100193China Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400716China Sugarcane Research Institute Guangxi Academy of Agricultural SciencesNanning 530007China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067BrisbaneQueenslandAustralia

Soil acidification is a serious constraint to food production *** review explores its primary causes,with a focus on the role of nitrogen fertilizer,and suggests mitigation strategies based on optimal N *** acidification is determined by the leaching of weak acid mainly caused by climate and soil conditions,whereas the use of ammonium-based fertilizers,nitrate leaching and removal of base cations(BCs)by crop harvesting mostly accounts for anthropogenic *** addition,low soil acid buffering capacity,mainly determined by soil parent materials and soil organic matter content,also accelerates *** study proposes targeted mitigation strategies for different stages of soil acidification,which include monitoring soil carbonate content and p H of soils with p H>6.5(e.g.,calcareous soil),use of alkaline amendments for strongly acidic soils(p H<5.5)with aluminum toxicity risk to p H between 5.5 and 6.5,and decreasing acidification rates and supplementing BCs to maintain this optimal p H range,especially for soils with low acid buffering *** mitigation involves optimizing the rate and form of N fertilizers used,regulating N transformation processes,and establishing an integrated soil–crop management system that balances acid production and soil buffering capacity.

关键词： Soil acidification nutrient management nitrogen soil buffering capacity

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Greenhouse gas emissions mitigation and economic viability of sugar crops in China

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Frontiers of Agricultural Science and Engineering 2024年第3期11卷 397-408页

作者： Linsheng YANG Xiaozhong WANG Wushuai ZHANG prakash lakshmanan Yan DENG Xiaojun SHI Xinping CHEN Fusuo ZHANG Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and Environment Southwest University Key Laboratory of Low-carbon Green Agriculture in Southwestern China (Ministry of Agriculture and Rural Affairs) Southwest University Rice Research Institute Anhui Academy of Agricultural Sciences Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi) Ministry of Agriculture and Rural Affairs Guangxi Key Laboratory of Sugarcane Genetic Improvement Guangxi Academy of Agricultural SciencesSugarcane Research Institute Guangxi Academy of Agricultural Sciences Center for Resources Environment and Food Security China Agricultural University

Climate change mitigation is a major challenge of human society. Currently, to this end, many countries including China are committed to achieving carbon neutrality within a few decades. China is a major sugarcane and sugar beet producing country and has one of the largest carbon footprint for sugarcane and sugar beet production globally. A comprehensive study was conducted on sugarcane and sugar beet crops grown in China for greenhouse gas(GHG)emissions mitigation potential, economic crop production from a sustainable sugar production perspective. Long-term trend analysis showed that yield and GHG emissions of sugarcane and sugar beet crops increased but the ratio of income to cost declined. Structural equation model analysis revealed nitrogen fertilizer and labor as the major drivers of GHG emissions for both sugarcane and sugar beet. For sugarcane and sugar beet, the path coefficient of N fertilizer were -0.964 and -0.835 and that of labor were 0.771 and 0.589,respectively. By transitioning the current cropping system to an improved model with optimized labor, N input and machinery use, the GHG emissions and total annual cost of sugarcane and sugar beet production can be reduced by 32% and 24%, respectively, by 2030, compared to a business-as-usual scenario. This is the first integrated and comparative study of environmental and economic sustainability of sugarcane and sugar beet production in *** findings will enable all stakeholders of Chinese sugarcane and sugar beet industries to transform them into environmentally and economically sustainable sugar production.

关键词： Economic profits GHG emissions labor input nitrogen input sugar

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Multiple pollutants from crop and livestock production in the Yangtze River: status and challenges

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Frontiers of Agricultural Science and Engineering 2024年第1期11卷 134-139,I0005页

作者： Lihua MA Shiyang LI Linfa FANG Xuanjing CHEN Ran XIAO Xiaoxuan SU Zhaolei LI Zhaohai BAI Lin MA prakash lakshmanan Xinping CHEN Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400715China Water Systems and Global Change Group Wageningen University&Research6708 PB Wageningenthe Netherlands Key Laboratory of Agricultural Water Resources Center for Agricultural Resources ResearchInstitute of Genetic and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi) Ministry of Agriculture and Rural AffairsGuangxi Key Laboratory of Sugarcane Genetic ImprovementSugarcane Research InstituteGuangxi Academy of Agricultural SciencesNanning 530007China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067Australia

The rapid increase in the proportion of cash crops and livestock production in the Yangtze River Basin has led to commensurate increases in fertilizer and pesticide inputs. Excessive application of chemical fertilizer, organophosphorus pesticides and inappropriate disposal of agricultural waste induced water pollution and potentially threaten Agriculture Green Development(AGD). To ensure food security and the food supply capacity of the Yangtze River Basin, it is important to balance green and development, while ensuring the quality of water bodies. Multiple pollutants affect the transfer, adsorption, photolysis and degradation of each other throughout the soil-plant-water system. This paper considers the impact of multi-pollutants on the nitrogen and phosphorus cycles especially for crops, which are related to achieving food security and AGD. It presents prospective on theory, modeling and multi-pollutant control in the Yangtze River Basin for AGD that are of potential value for other developing regions.

关键词： Agriculture Green Development crop production livestock production multi-pollutant models multiple pollutants Yangtze River Basin

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A Combined Genomics and Phenomics Approach is Needed to Boost Breeding in Sugarcane

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Plant Phenomics 2023年第3期5卷 395-398页

作者： Ting Luo Xiaoyan Liu prakash lakshmanan Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi) Ministry of Agriculture and Rural AffairsSugarcane Research InstituteGuangxi Academy of Agricultural SciencesGuangxi Key Laboratory of Sugarcane Genetic ImprovementGuangxi Academy of Agricultural SciencesNanning 530007China Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400716China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067QLDAustralia

Sugarcane is a major food and bioenergy crop *** pro-duces~80%of sugar consumed worldwide,with Brazil and India together accounting for 61%of world sugarcane produc-tion in 2021[1].Globally,sugarcane is the 5th largest crop by production value and acreage,and it is also the second largest bioenergy crop[1,2].Modern sugarcane is an interspecific hybrid(Saccharum species hybrid)of wild progenitor species Saccharum officinarum(2n=80;x=10)andSaccharumspon-taneum(2n=40 to 130;x=8)[3].This genetically complex polyploid crop with varied chromosome numbers(100 to 130)has one of the largest genomes(~10 kb)among plants,making sugarcane breeding considerably slow and challenging.

关键词： breeding sugar globally

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SUSTAINABLE SUGARCANE CROPPING IN CHINA

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Frontiers of Agricultural Science and Engineering 2022年第2期9卷 272-283页

作者： Ting LUO prakash lakshmanan Zhongfeng ZHOU Yuchi DENG Yan DENG Linsheng YANG Dongliang HUANG Xiupeng SONG Xihui LIU Wen-Feng CONG Jianming WU Xinping CHEN Fusuo ZHANG Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi) Ministry of Agriculture and Rural AffairsGuangxi Key Laboratory of Sugarcane Genetic ImprovementSugarcane Research InstituteGuangxi Academy of Agricultural SciencesNanning 530007China Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin College of Resources and EnvironmentSouthwest UniversityChongqing 400716China Queensland Alliance for Agriculture and Food Innovation University of QueenslandSt Lucia 4067QLDAustralia Center for Resources Environment and Food SecurityChina Agricultural UniversityBeijing 100193China

Demand for sugar is projected to grow in China for the foreseeable ***,sugarcane production is unlikely to increase due to increasing production cost and decreasing profit *** persisting sugarcane yield plateau and the current cropping system with fertilizer overuse,soil acidification and pests and diseases remain the major productivity *** agriculture supports the livelihood of about 28 million farmers in South China;hence,sustaining it is a socioeconomic *** compellingly,to meet the ever-increasing Chinese market demand,annual sugar production must be increased from the current 10 Mt to 16 Mt by 2030 of which 80% to 90% comes from ***,increasing sugar yield and crop productivity in an environmentally sustainable way must be a *** review examines the current Chinese sugarcane production system and discuss options for its transition to a green,sustainable cropping system,which is vital for the long-term viability of the *** analysis shows that reducing chemical inputs,preventing soil degradation,improving soil health,managing water deficit,provision of clean planting material,and consolidation of small farm holdings are critical requirements to transform the current farming practices into an economically and environmentally sustainable sugarcane cropping system.

关键词： sustainable sugarcane cropping soil health rotation and intercropping soil acidification

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具有固氮和耐酸特性甘蔗属野生割手密的筛选与鉴定

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西南农业学报 2022年第12期35卷 2700-2707页

作者：梁宏卫 prakash lakshmanan 刘晓燕黄柯钧颜睿罗霆广西农业科学院甘蔗研究所/广西甘蔗遗传改良重点实验室/农业农村部广西甘蔗生物技术与遗传改良重点实验室南宁530007 广西博庆食品有限公司广西宜州546300

【目的】开展甘蔗属野生割手密种质资源农艺性状和固氮能力评价鉴定,筛选兼具固氮和耐酸特性的特异种质,为我国甘蔗属野生割手密种质资源创新和品种选育提供参考依据。【方法】以33份甘蔗属野生割手密种质为试验材料,采用相关分析、聚... 详细信息

【目的】开展甘蔗属野生割手密种质资源农艺性状和固氮能力评价鉴定,筛选兼具固氮和耐酸特性的特异种质,为我国甘蔗属野生割手密种质资源创新和品种选育提供参考依据。【方法】以33份甘蔗属野生割手密种质为试验材料,采用相关分析、聚类分析和基因组克隆等方法,测定其株高、总茎数、锤度、干物率和固氮酶活性,克隆其内生固氮菌nifH基因,分析其固氮酶活性及酸胁迫下的根重和根系活力等指标,筛选出综合性状优良的固氮割手密材料,最终鉴定出兼具固氮和耐酸特性的割手密种质。【结果】参试割手密种质遗传多样性丰富,株高、总茎数、锤度、干物率和固氮酶活性的平均变异系数分别为31.73%、37.22%、40.69%、6.77%和59.22%,其中固氮酶活性的变异最大,说明这些割手密种质中存在固氮能力变异丰富的类型。相关分析结果表明,干物率与锤度、固氮酶活性与总茎数呈显著正相关(P<0.05,下同),干物率与总茎数呈显著负相关。聚类分析结果表明,在欧式距离8.51处可将33份割手密种质划分为4个类群,聚类结果与种质本身特性具有一定的一致性,其中,第4类群中的6份割手密种质为多茎的高固氮组合,第3类群的4份割手密种质均具有植株矮小和干物率低的特点;根据地域来源对33份割手密种质不能明显聚类,但具有较多相同性状特征的种质能聚在一起,说明割手密种质的表型和固氮能力在长期演化和自然选择过程中发生了显著变化。在种质GSM177和GSM03体内克隆到大量具有固氮基因nifH的固氮菌,进一步证实GSM177和GSM03是固氮型割手密种质。耐酸筛选试验结果表明,种质GSM177和GSM03对酸性土壤的耐受程度存在明显差异,其中,种质GSM177较能耐受酸性土壤环境,GSM03是典型的酸敏感型割手密种质。【结论】GSM177是兼具固氮和耐酸特性且综合性状优良的甘蔗属野生割手密种质资源,可在固氮和耐酸甘蔗品种选育中利用。

关键词：甘蔗野生割手密固氮耐酸鉴定筛选

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A dysregulated calcium homeostasis as the earliest pathological sign in stem cell-derived Parkinson's disease neurons?

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Neural Regeneration Research 2024年第7期19卷 1421-1422页

作者： Nilima prakash Working Group Human Stem Cell Research Department Hamm 2Hamm-Lippstadt University of Applied SciencesHammGermany

Parkinson’s disease(PD) is characterized by the slow and progressive demise of dopamine(DA)-synthesizing neurons in the substantia nigra pars compacta(SNc),a nucleus located in the human ventral *** death also affects other regions in the brain at later stages of *** concomitant lack of DA in the human forebrain(striatum) leads to the typical motor symptoms of this still uncurable neurodegenerative disorder.

关键词： homeostasis dopamine death

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Mineralogy and geochemistry of trachytic rocks from the Lichi Volcanics, Eastern Himalaya: insights into the Kerguelen mantle plume activity in the Eastern Himalayan Region

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Acta Geochimica 2024年第1期43卷 180-197页

作者： Pallabi Basumatary Deepshikha Borah Hiredya Chauhan Tribujjal prakash Bibhuti Gogoi Department of Geology Cotton UniversityGuwahatiAssam 781001India Wadia Institute of Himalayan Geology DehradunUttarakhand 248001India

The Lichi volcanics are a suite of mafic-intermediate-felsic rocks and are considered coeval with the Abor volcanics(~132 Ma) of the Siang window in the Eastern Himalaya. Here, we present the first report of trachytic rocks from the Lichi volcanics, which are exposed in the Ranga valley, along the Kimin-Yazali road section in the Eastern Himalayan Region, Northeast India. The trachytes occur in close association with sandstones of the Gondwana Group of rocks and are characterised based on field, petrographical, and geochemical *** fine-grained trachytes are composed of alkali feldspar, biotite, plagioclase, sodic-amphibole, apatite, illmenite, and titanite. The REE profiles of the evolved trachytic rocks(higher SiO_(2)content) display fractionated trends. The fractionation of accessory mineral phases, like apatite and titanite, was possibly responsible for the strongly fractionated REE patterns of the evolved *** trachytic rocks demonstrate high apatite saturation temperatures of 988 ± 14 ℃(1σ, n = 8). The Aluminium Saturation Index(< 1.1) and binary discrimination diagrams of these peralkaline trachytes define their affinity with A-type granitoids. Elemental ratios like Y/Nb, Nb/U,and Ce/Pb signify that the Lichi trachytes are differentiated products of mantle-derived ocean island basalts. Trace elemental discrimination diagrams Th/Yb versus Nb/Yb, Y versus Nb, and Y + Nb versus Rb reflect a within-plate tectonic regime for the trachytes. From the results presented in this work, we infer that the development of rifting events during the breakup of eastern Gondwana due to the onset of Kerguelen plume activity further led to underplating of basic magma in lower crustal levels. These parental basaltic magmas underwent fractionation processes forming differentiated trachyandesites and *** into consideration the similarities recorded between the Lichi volcanics and Abor volcanics, this study supports the idea that Kerguelen plume ac

关键词： Peralkaline trachytes Trachyandesites A-type granitoids Apatite saturation temperature Abor volcanics Eastern Gondwana

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Advancements on metal oxide semiconductor photocatalysts in photo-electrochemical conversion of carbon dioxide into fuels and other useful products

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Frontiers in Energy 2024年第2期18卷 187-205页

作者： Jai prakash Zhangsen CHEN Shakshi SAINI Gaixia ZHANG Shuhui SUN Department of Chemistry National Institute of Technology HamirpurHamirpur 177005India Institut National de la Recherche Scientifique(INRS) Centre Énergie Matériaux TélécommunicationsVarennes J3X 1P7Canada Department of Chemistry Indian Institute of Technology MandiHimachal PradeshIndia Department of Electrical Engineering École de Technologie SupérieureMontréal H3C 1K3Canada

Due to its fascinating and tunable optoelectronic properties,semiconductor nanomaterials are the best choices for multidisciplinary ***,the use of semiconductor photocatalysts is one of the promising ways to harness solar energy for useful applications in the field of energy and *** recent years,metal oxide-based tailored semiconductor photocatalysts have extensively been used for photocatalytic conversion of carbon dioxide(CO_(2))into fuels and other useful products utilizing solar *** is very significant not only from renewable energy consumption but also from reducing global warming point of *** current research activities are promising for a better future of *** present mini-review is focused on recent developments(2–3 years)in metal oxide semiconductor hybrid photocatalysts-based photo-electrochemical conversion of CO_(2)into fuels and other useful ***,general mechanism of photo-electrochemical conversion of CO_(2)into fuels or other useful products has been ***,various metal oxide-based emerging hybrid photocatalysts including tailoring of their morphological,compositional,and optoelectronic properties have been discussed with emphasis on their role in enhancing photoelectrochemical ***,mechanism of their photo-electrochemical reactions and applications in CO_(2)conversion into fuels/other useful products have been ***,challenges and future prospects have been discussed followed by a summary.

关键词： metal-oxide semiconductors nanohybrid photocatalysts photo-electrochemical CO_(2)conversion tailoring morphology fuels challenges and future prospects

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Photocatalytic application of magnesium spinel ferrite in wastewater remediation:A review

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Journal of Magnesium and Alloys 2024年第2期12卷 490-505页

作者： Rohit Jasrotia Nikhil Jaswal Jyoti prakash Chan Choon Kit Jagpreet Singh Abhishek Kandwal School of Physics and Materials Science Shoolini UniversityBajholSolanH.P.India Himalayan Centre of Excellence in Nanotechnology Shoolini UniversityBajholH.P.India INTI International University Putra NilaiNegeri SembilanMalaysia Department of Chemistry University Centre for Research&Development Chandigarh UniversityMohali140413PunjabIndia Shenzhen Institute of Advanced Technology Chinese Academy of SciencesChina

This review paper explores the efficacy of magnesium ferrite-based catalysts in photocatalytic degradation of organic contaminates(antibiotic and dyes).We report the influence of different doping strategies,synthesis methods,and composite materials on the degradation efficiency of these *** analysis reveals the versatile and promising nature of magnesium ferrite-based catalysts,offering the valuable insights into their practical application for restoring the *** to the smaller band gap and magnetic nature of magnesium ferrite,it holds the benefit of utilising the broader spectrum of light while also being *** in-depth analysis of magnesium ferrites'photocatalytic mechanism could lead to the development of cheap and reliable photocatalyst for the wastewater *** concise review offers a thorough summary of the key advancements in this field,highlighting the pivotal role of the magnesium ferrite based photocatalysts in addressing the pressing global issue of organic pollutants in wastewater.

关键词： Magnesium ferrite Wastewater Dyes Antibiotics Photocatalytic degradation

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