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Nano/Micro-Structural Supramolecular Biopolymers: Innovative Networks with the Boundless Potential in sustainable agriculture

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Nano-Micro Letters 2024年第8期16卷 79-101页

作者： Roohallah Saberi Riseh Mohadeseh Hassanisaadi Masoumeh Vatankhah Rajender S.Varma Vijay Kumar Thakur Department of Plant Protection Faculty of AgricultureVali-e-Asr University of RafsanjanImam Khomeini SquareRafsanjan ***Iran Centre of Excellence for Research in sustainable Chemistry Department of ChemistryFederal University of São CarlosSão CarlosSP 13565‑905Brazil Biorefining and Advanced Materials Research Center Scotland’s Rural Collage(SRUC)Edinburgh EH93JGUK

sustainable agriculture plays a crucial role in meeting the growing global demand for food while minimizing adverse environmental impacts from the overuse of synthetic pesticides and conventional fertilizers.In this context,renewable biopolymers being more sustainable offer a viable solution to improve agricultural sustainability and production.Nano/micro-structural supramolecular biopolymers are among these innovative biopolymers that are much sought after for their unique features.These biomaterials have complex hierarchical structures,great stability,adjustable mechanical strength,stimuli-responsiveness,and self-healing attributes.Functional molecules may be added to their flexible structure,for enabling novel agricultural uses.This overview scrutinizes how nano/micro-structural supramolecular biopolymers may radically alter farming practices and solve lingering problems in agricultural sector namely improve agricultural production,soil health,and resource efficiency.Controlled bioactive ingredient released from biopolymers allows the tailored administration of agrochemicals,bioactive agents,and biostimulators as they enhance nutrient absorption,moisture retention,and root growth.Nano/micro-structural supramolecular biopolymers may protect crops by appending antimicrobials and biosensing entities while their eco-friendliness supports sustainable agriculture.Despite their potential,further studies are warranted to understand and optimize their usage in agricultural domain.This effort seeks to bridge the knowledge gap by investigating their applications,challenges,and future prospects in the agricultural sector.Through experimental investigations and theoretical modeling,this overview aims to provide valuable insights into the practical implementation and optimization of supramolecular biopolymers in sustainable agriculture,ultimately contributing to the development of innovative and eco-friendly solutions to enhance agricultural productivity while minimizing environmental impact.

关键词： Supramolecular Biopolymers sustainable agriculture Nanotechnology

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Advancing sustainable agriculture: Enhancing crop nutrition with next-generation nanotech-based fertilizers

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Nano Research 2023年第12期16卷 13205-13225页

作者： Yiwen Liao Dawei Xu Yuhong Cao Yong-Guan Zhu State Key Laboratory of Urban and Regional Ecology Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety National Center for Nanoscience and TechnologyBeijing 100190China

The pressing need to enhance nutrient use efficiency(NUE)in fertilizers has become increasingly urgent in light of food insecurity and climate-related issues.Nanotechnology offers promising prospects for the development of effective and environmentally friendly alternatives in the field of fertilization.This review focuses on the impact of nanotechnology on conventional fertilizers,encompassing inorganic,organic,and microbial approaches.We emphasize the superior attributes of nano-fertilizers compared with their conventional counterparts and explore their potential and versatility in boosting crop productivity,reducing fertilizer expenses,and mitigating detrimental environmental impacts.In conclusion,given the significant challenges posed by food insecurity and climate change,the application of nano-fertilizers demonstrates immense potential for advancing sustainable and intelligent agricultural practices.

关键词： nanobiotechnology nano-fertilizers(NFs) nutrient use efficiency(NUE) slow release sustainable agriculture

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Potential of plant growth-promoting rhizobacteria-plant interactions in mitigating salt stress for sustainable agriculture:A review

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Pedosphere 2022年第2期32卷 223-245页

作者： Kailash Chand KUMAWAT Sharon NAGPAL Poonam SHARMA Department of Microbiology Punjab Agricultural UniversityLudhianaPunjab 141004India Department of Plant Breeding and Genetics Punjab Agricultural UniversityLudhianaPunjab 141004India

Soil salinization affecting different crops is one of the serious threats to global food security.Soil salinity affects 20%and 33%of the total cultivated and irrigated agricultural lands,respectively,and has been reported to caused a global crop production loss of 27.3 billion USD.The conventional approaches,such as using salt-tolerant varieties,saline soil scrapping,flushing,leaching,and adding supplements (e.g.,gypsum and lime),often fail to alleviate stress.In this context,developing diverse arrays of microbes enhancing crop productivity under saline soil conditions without harming soil health is necessary.Various advanced omics approaches have enabled gaining new insights into the structure and metabolic functions of plant-associated beneficial microbes.Various genera of salt-tolerating rhizobacteria ameliorating biotic and abiotic stresses have been isolated from different legumes,cereals,vegetables,and oil seeds under extreme alkaline and saline soil conditions.Rapid progress in rhizosphere microbiome research has revived the belief that plants may be more benefited from their association with interacting diverse microbial communities as compared with individual members in a community.In the last decade,several salt-tolerating plant growth-promoting rhizobacteria (PGPR) that improve crop production under salt stress have been exploited for the reclamation of saline agrosystems.This review highlights that the interaction of salt-tolerating microbes with plants improves crop productivity under salinity stress along with potential salt tolerance mechanisms involved and will open new avenues for capitalizing on cultivable diverse microbial communities to strengthen plant salt tolerance and,thus,to refine agricultural practices and production under saline conditions.

关键词： antagonistic activities antioxidant enzymes benefical microbes osmotolerance rhizosphere microbiome salt tolerance sustainable agriculture

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Explaining farmers'reluctance to adopt green manure cover crops planting for sustainable agriculture in Northwest China

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Journal of Integrative agriculture 2022年第11期21卷 3382-3394页

作者： Sheng-Han-Erin CHANG YI Xiao-yan Johannes SAUER YIN Chang-bin LI Fu-duo Agricultural Production and Resource Economics Technical University of MunichFreising 85354Germany Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing 100081P.R.China

Green manure cover crops(GMCCs)planting has a potential for mitigating greenhouse gas emissions(GHG)in agroecosystems and provides important ecosystem services,thereby achieving the sustainable Development Goals(SDGs)stipulated by the United Nations.However,the advantages of cultivating GMCCs on arable land are not widely recognized.For example,in the whole of China,the GMCCs planting area is less than 3.5%of total arable land.The aim of this study is to explore reasons for the low adoption rate of GMCCs planting.Using best–worst scaling(BWS)approach,farmers ranked their preferred conservation practices including three types of GMCC cropping systems.Taking Gansu Province in Northwest China as a case study,a survey with 276 farmers was conducted.The findings indicated that three factors are related to the low adoption rate of GMCCs:1)farmers preferred improving farmland irrigation facilities and substituting chemical fertilizers with organic rather than planting GMCCs;2)lack of awareness and understanding of government policy on GMCCs and limited access to training courses;3)financial support and subsidies from the government are insufficient.This study provides insights and strategic implications for policymakers on how to further promote GMCCs in the future.

关键词： best–worst scaling farmers'preferences green manure cover crops sustainable agriculture Northwest China

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Harvest optimization for sustainable agriculture:The case of tea harvest scheduling

Artificial Intelligence in Agriculture

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Artificial Intelligence in agriculture 2023年第4期10卷 35-45页

作者： Bedirhan Sarımehmet Mehmet Pınarbaşı HacıMehmet Alakaş Tamer Eren Department of Industrial Engineering Faculty of Architecture and EngineeringKırıkkale UniversityKırıkkaleTurkey

To ensure sustainability in agriculture,many optimization problems need to be solved.An important one of them is harvest scheduling problem.In this study,the harvest scheduling problem for the tea is discussed.The tea harvest problem includes the creating a harvest schedule by considering the farmers'quotas under the purchase location and factory capacity.Tea harvesting is carried out in cooperation with the farmer-factory.Factory man-agement is interested in using its resources.So,the factory capacity,purchase location capacities and number of expeditions should be considered during the harvesting process.When the farmer's side is examined,it is seen that the real professions of farmers are different.On harvest days,farmers often cannot attend to their primary professions.Considering the harvest day preferences of farmers in creating the harvest schedule are of great importance for sustainability in agriculture.Two different mathematical models are proposed to solve this problem.The first model minimizes the number of weekly expeditions of factory vehicles within the factor and purchase location capacity restrictions.The second model minimizes the number of expeditions and aims to comply with the preferences of the farmers as much as possible.A sample application was performed in a region with 12 purchase locations,988 farmers,and 3392 decares of tea fields.The results show that the compli-ance rate of farmers to harvesting preferences could be increased from 52%to 97%,and this situation did not affect the number of expeditions of the factory.This result shows that considering the farmers'preferences on the harvest day will have no negative impact on the factory.On the contrary,it was concluded that this situation increases sustainability and encouragement in agriculture.Furthermore,the results show that models are effective for solving the problem.

关键词： Goal programming Harvest optimization Harvest scheduling sustainable agriculture Tea

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Plant growth-promoting rhizobacteria(PGPR)and its mechanisms against plant diseases for sustainable agriculture and better productivity

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BIOCELL 2022年第8期46卷 1843-1859页

作者： PRANAB DUTTA GOMATHY MUTHUKRISHNAN SABARINATHAN KUTALINGAM GOPALASUBRAMAIAM RAJAKUMAR DHARMARAJ ANANTHI KARUPPAIAH KARTHIBA LOGANATHAN KALAISELVI PERIYASAMY MARUMUGAM PILLAI GK UPAMANYA SARODEE BORUAH LIPA DEB ARTI KUMARI MADHUSMITA MAHANTA PUNABATI HEISNAM AK MISHRA School of Crop Protection Central Agricultural University(Imphal)UmiamIndia Department of Soil Science and Agricultural Chemistry Agricultural College and Research InstituteTamil Nadu Agricultural UniversityKoyingbatoreIndia Department of Crop physiology Agricultural College and Research InstituteTamil Nadu Agricultural UniversityKoyingbatoreIndia Departments of Pulses Tamil Nadu Agricultural UniversityCoimbatoreKoyingbatoreIndia Department of Environmental Sciences Horticultural College and Research InstituteTamil Nadu Agricultural UniversityKoyingbatoreIndia Department of Plant pathology Assam Agricultural UniversityDhubriIndia KVK-Tinsukia Assam Agricultural UniversityTinsukiaIndia Department of Plant Pathology Central Agricultural University(Imphal)PasighatIndia Department of Plant Pathology Dr Rajendra Prasad Central Agricultural UniversityBiharIndia

Plant growth-promoting rhizobacteria(PGPR)are specialized bacterial communities inhabiting the root rhizosphere and the secretion of root exudates helps to,regulate the microbial dynamics and their interactions with the plants.These bacteria viz.,Agrobacterium,Arthobacter,Azospirillum,Bacillus,Burkholderia,Flavobacterium,Pseudomonas,Rhizobium,etc.,play important role in plant growth promotion.In addition,such symbiotic associations of PGPRs in the rhizospheric region also confer protection against several diseases caused by bacterial,fungal and viral pathogens.The biocontrol mechanism utilized by PGPR includes direct and indirect mechanisms direct PGPR mechanisms include the production of antibiotic,siderophore,and hydrolytic enzymes,competition for space and nutrients,and quorum sensing whereas,indirect mechanisms include rhizomicrobiome regulation via.secretion of root exudates,phytostimulation through the release of phytohormones viz.,auxin,cytokinin,gibberellic acid,1-aminocyclopropane-1-carboxylate and induction of systemic resistance through expression of antioxidant defense enzymes viz.,phenylalanine ammonia lyase(PAL),peroxidase(PO),polyphenyloxidases(PPO),superoxide dismutase(SOD),chitinase andβ-glucanases.For the suppression of plant diseases potent bio inoculants can be developed by modulating the rhizomicrobiome through rhizospheric engineering.In addition,understandings of different strategies to improve PGPR strains,their competence,colonization efficiency,persistence and its future implications should also be taken into consideration.

关键词： Plant growth-promoting rhizobacteria Biocontrol Plant diseases PGPR mechanisms sustainable agriculture

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Use of the knowledge,attitude,and practice(KAP)model to examine sustainable agriculture in Thailand

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Regional Sustainability 2022年第1期3卷 41-52页

作者： LIAO Xuewei Thi Phuoc Lai NGUYEN Nophea SASAKI Development Planning Management and Innovation(DPMI) Department of Development and SustainabilitySchool of EnvironmentResources and DevelopmentAsian Institute of Technology(AIT)Pathumthani12120Thailand Natural Resource Management(NRM) Department of Development and SustainabilitySchool of EnvironmentResources and DevelopmentAsian Institute of Technology(AIT)Pathumthani12120Thailand

sustainable agriculture plays an important role in achieving sustainable development goals with regard to food security and environmental conservation.sustainable agriculture relies on sustainable farming practices that reduce greenhouse gas production,the wise use of local natural resources,and reductions in negative impacts on the environment and human health.sustainable farming practices can be driven by various factors,such as the socio-environmental setting,socio-cognitive factors,agricultural institutions,and policy.This study used the knowledge,attitude,and practice(KAP)model to examine farmers’knowledge,attitudes,and practices in the area of sustainable agriculture.It also considered the factors affecting farmers’knowledge,attitudes,and practices.Two different socio-environmental contextual settings in Surin Province(a Thai-Cambodian border province)of Thailand are considered.The results show that there are differences between the two different socio-environmental contextual settings with regard to farmers’sustainable agricultural practice perceptions,knowledge,and attitudes.Farmers’perceptions of environmental degradation,the number of years of agricultural experience,and agricultural policy drive farmers’attitudes and individual sustainable practices.Another major result of the study is that individual farmers’attitudes and practices promote collective sustainable agricultural behaviors.The implication of these findings is that it is necessary to improve the learning ability of individual farmers on the environment and sustainable agricultural practices through social learning and scientific knowledge dissemination,so as to produce sustainable collective development behaviors.

关键词： Socio-environmental context Individual and collective practices sustainable agriculture KAP model Thailand

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Effects of different organic fertilizers on nitrous oxide and methane emissions from double-cropping rice fields

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Pedosphere 2024年第1期34卷 52-62页

作者： Mingcheng HU Andrew J.WADE Weishou SHEN Zhenfang ZHONG Chongwen QIU Xiangui LIN Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science&TechnologyNanjing 210044China Department of Geography and Environmental Science University of ReadingReading RG66 DWUK Haina Research Institute of Guangdong Haina Agricultural Co. Ltd.Huizhou 516000China State Key Laboratory of Soil and sustainable agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

Rice fields are a major source of greenhouse gases,such as nitrous oxide (N_(2)O) and methane (CH_(4)).Organic fertilizers may potentially replace inorganic fertilizers to meet the nitrogen requirement for rice growth;however,the simultaneous effects of organic fertilizers on N_(2)O and CH_(4)emissions and crop yield in paddy fields remain poorly understood and quantified.In this study,experimental plots were established in conventional double-cropping paddy fields in the Pearl River Delta,China,including an unfertilized control and five fertilizer treatments with fresh organic fertilizer (FOF),successively composted organic fertilizer (SOF),chemically composted organic fertilizer (COF),COF supplemented with inorganic fertilizer (COIF),and chemical fertilizers (CFs)(TFOF,TSOF,TCOF,TCOIF,and TCF,respectively).Paddy field soils behaved simultaneously as an N_(2)O sink (cumulative N_(2)O emission:-196 to-381 g N ha^(-1)) and as a CH_(4)source (cumulative CH_(4)emission:719 to 2 178 kg ha^(-1)).Compared to CFs,the effects of organic fertilizers on N_(2)O emission were not significant.In contrast,total annual CH_(4)emission increased by 157%,132%,125%,and 37%in TFOF,TCOF,TSOF,and TCOIF,respectively,compared to TCF.In TCOIF,rice yield was maintained,while CH_(4)emission was not significantly increased from the paddy fields characterized by a prolonged flood period.An important next step is to extend these field-based measurements to larger rice cultivation areas to quantify the regional and national-scale impacts on greenhouse gas emissions and to help determine the optimum practice for fertilizer use.

关键词： crop production global warming potential greenhouse gases manure paddy sustainable agriculture

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Plant Nitrogen Metabolism: Balancing Resilience to Nutritional Stress andAbiotic Challenges

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Phyton-International Journal of Experimental Botany 2024年第3期93卷 581-609页

作者： Muhammad Farhan Manda Sathish Rafia Kiran Aroosa Mushtaq Alaa Baazeem Ammarah Hasnain Fahad Hakim Syed Atif Hasan Naqvi Mustansar Mubeen Yasir Iftikhar Aqleem Abbas Muhammad Zeeshan Hassan Mahmoud Moustafa Department of Plant Pathology Faculty of Agricultural Sciences&TechnologyBahauddin Zakariya UniversityMultan60800Pakistan Centro de Investigación de Estudios Avanzados del Maule(CIEAM) Vicerrectoría de Investigación y PostgradoUniversidad Católica del MauleTalca3460000Chile College of Food Science and Nutritional Engineering China Agricultural UniversityBeijingChina Department of Biology College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Biotechnology Faculty of Biological SciencesLahore University of Biological and Applied SciencesLahorePakistan Department of Plant Pathology College of AgricultureUniversity of SargodhaSargodha40100Pakistan Department of agriculture and Food Technology Karakorum International UniversityGilgitPakistan Department of Biology Faculty of ScienceKing Khalid UniversityAbhaSaudi Arabia

Plant growth and resilience to abiotic stresses,such as soil salinity and drought,depend intricately on nitrogen metabolism.This review explores nitrogen’s regulatory role in plant responses to these challenges,unveiling a dynamic interplay between nitrogen availability and abiotic stress.In the context of soil salinity,a nuanced rela-tionship emerges,featuring both antagonistic and synergistic interactions between salinity and nitrogen levels.Salinity-induced chlorophyll depletion in plants can be alleviated by optimal nitrogen supplementation;however,excessive nitrogen can exacerbate salinity stress.We delve into the complexities of this interaction and its agri-cultural implications.Nitrogen,a vital element within essential plant structures like chloroplasts,elicits diverse responses based on its availability.This review comprehensively examines manifestations of nitrogen deﬁciency and toxicity across various crop types,including cereals,vegetables,legumes,and fruits.Furthermore,we explore the broader consequences of nitrogen products,such as N_(2)O,NO_(2),and ammonia,on human health.Understand-ing the intricate relationship between nitrogen and salinity,especially chloride accumulation in nitrate-fed plants and sodium buildup in ammonium-fed plants,is pivotal for optimizing crop nitrogen management.However,prudent nitrogen use is essential,as overapplication can exacerbate nitrogen-related issues.Nitrogen Use Efﬁ-ciency(NUE)is of paramount importance in addressing salinity challenges and enhancing sustainable crop productivity.Achieving this goal requires advancements in crop varieties with efﬁcient nitrogen utilization,pre-cise timing and placement of nitrogen fertilizer application,and thoughtful nitrogen source selection to mitigate losses,particularly urea-based fertilizer volatilization.This review article delves into the multifaceted world of plant nitrogen metabolism and its pivotal role in enabling plant resilience to nutritional stress and abiotic challenges.It offers insights into future directions

关键词： Synthetic nitrogen nitrogen signaling sustainable agriculture eutrophication ammonium nitrate

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sustainable agriculture: ITS STATUS QUO AND TREND IN CHINA

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Journal of Geographical Sciences 1996年第3期6卷 1-12页

作者： Cai Yunlong(Department of Geography, Peking University, Beijing 100871People’s Republic of China)Barry Smit(Department of Geography, University of Guelph)Guelph, Ontario, N1G2W1, Canada)

agriculture is a complex of processes that takes place within a threefold (that is, bio-physical, socio-political and techno-economic) environmatal framework. The sustainability of agriculturral systems can also be assessed within this framework. sustainable agnculture has different meanings at various spatial scales At local and regional scales, it is just ecological farming. At national and global scales, however, the emphasis is put on the issues of food production and distribution. Based upon the framework, this paper discusses the current situation and future trend of Chinese agriculture in relation to sustainability.

关键词： sustainable agriculture food supply issue ecological farming China

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