检索结果-南通市图书馆

Pedosphere 2013年第3期23卷 305-311页

作者： SHEN Zhang-Quan SHAN Ying-Jie PENG Li JIANG Yu-Gen Institute of Agricultural Remote Sensing and Information Technology Application Zhejiang University Zhejiang soil and fertilizer station Fuyang soil and fertilizer station

Characterizing spatial variability of soil attributes, using traditional soil sampling and laboratory analysis, is cost prohibitive. The potential benefit of managing soils on a site-specific basis is well established. High variations in glacial till soil render detailed soil mapping difficult with limited number of soil samples. To overcome this problem, this paper demonstrates the feasibility of soil carbon and clay mapping using the newly developed on-the-go near-infrared reflectance spectroscopy (NIRS). Compared with the geostatistics method, the partial least squares regression (PLSR), with NIRS measurements, could yield a more detailed map for both soil carbon and clay. Further, by using independent validation dataset, the accuracy of predicting could be improved significantly for soil clay content and only slightly for soil carbon content. Owing to the complexity of field conditions, more work on data processing and calibration modeling might be necessary for using on-the-go NIRS measurements.

关键词： independent validation on-the-go measurement soil carbon mapping soil clay mapping soil sensors

Formulation of Organic fertilizer Standard in jiaxing City Based on NY525-2012

在线全文

学校读者我要写书评

暂无评论

Asian Agricultural Research 2013年第4期5卷 124-125,132页

作者： Jinfa HUANG Xiongwei NI Jianping XIE Yanping SHI jiaxing work station of soil and fertilizer

On the basis of research, analysis and argumentation, we conduct analysis and research on the current situation of quality of commercial organic fertilizer in jiaxing City, and carry out the inspection and testing of organic matter indicators using the laboratory. Based on the standard of NY525-2012 Organic fertilizer by the Ministry of Agriculture, this paper formulates the quality level indicators of local commercial organic fertilizer and adding specifications of raw materials.

关键词： Organic fertilizer jiaxing Local standard

Manure substitution improves maize yield by promoting soil fertility and mediating the microbial community in lime concretion black soil

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2024年第2期23卷 698-710页

作者： Minghui Cao Yan Duan Minghao Li Caiguo Tang Wenjie Kan Jiangye Li Huilan Zhang Wenling Zhong Lifang Wu The Center for Ion Beam Bioengineering&Green Agriculture Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China Zhongke Taihe Experimental station Taihe 236626China Institute of Resources and Environment Jiangsu Academy of Agricultural SciencesNanjing 210014China

Synthetic nitrogen(N)fertilizer has made a great contribution to the improvement of soil fertility and productivity,but excessive application of synthetic N fertilizer may cause agroecosystem risks,such as soil acidification,groundwater contamination and biodiversity ***,organic substitution has received increasing attention for its ecologically and environmentally friendly and productivity ***,the linkages between manure substitution,crop yield and the underlying microbial mechanisms remain *** bridge this gap,a three-year field experiment was conducted with five fertilization regimes:i)Control,non-fertilization;CF,conventional synthetic fertilizer application;CF_(1/2)M_(1/2),1/2 N input via synthetic fertilizer and 1/2 N input via manure;CF_(1/4)M_(3/4),1/4 N input synthetic fertilizer and 3/4 N input via manure;M,manure *** fertilization treatments were designed to have equal N *** results showed that all manure substituted treatments achieved high soil fertility indexes(SFI)and productivities by increasing the soil organic carbon(SOC),total N(TN)and available phosphorus(AP)concentrations,and by altering the bacterial community diversity and composition compared with ***,AP,and the soil C:N ratio were mainly responsible for microbial community *** co-occurrence network revealed that SOC and AP had strong positive associations with Rhodospirillales and Burkholderiales,while TN and C:N ratio had positive and negative associations with Micromonosporaceae,*** specific taxa are implicated in soil macroelement *** Forest analysis predicted that both biotic(bacterial composition and Micromonosporaceae)and abiotic(AP,SOC,SFI,and TN)factors had significant effects on crop *** present work strengthens our understanding of the effects of manure substitution on crop yield and provides theoretical support for optimizing fertilization strategies.

关键词： fertilization manure substitution soil fertility maize yield bacterial community

Sex-specifically responsive strategies to phosphorus availability combined with different soil nitrogen forms in dioecious Populus cathayana

在线全文

学校读者我要写书评

暂无评论

Journal of Plant Ecology 2021年第4期14卷 730-748,F0003页

作者： Xiucheng Liu Yuting Wang Shuangri Liu Miao Liu Department of Ecology College of Life and Environmental SciencesHangzhou Normal UniversityHangzhou 311121China fertilizer and Water Technology Extension Department Cultivated Land Quality and Fertilizer Management Station of Jinhua CityJinhua 321017China

Aims Phosphorus(P)availability and efficiency are especially important for plant growth and ***,the sex-specific P acquisition and utilization strategies of dioecious plant species under different N forms are not *** This study investigated the responsive mechanisms of dioecious Populus cathayana females and males based on P uptake and allocation to soil P supply under N deficiency,nitrate(NO3−)and ammonium(NH4+)*** Findings Females had a greater biomass,root length density(RLD),specific root length(SRL)and shoot P concentration than males under normal P availability with two N ***4+supply led to higher total root length,RLD and SRL but lower root tip number than NO3−supply under normal P *** P deficiency,males showed a smaller root system but greater photosynthetic P availability and higher leaf P remobilization,exhibiting a better capacity to adaptation to P deficiency than *** P deficiency,NO3−supply increased leaf photosynthesis and P use efficiency(PUE)but reduced RLD and SRL in females while males had higher leaf P redistribution and photosynthetic PUE than NH4+*** had a better potentiality to cope with P deficiency under NO3−supply than NH4+supply;the contrary was true for *** results suggest that females may devote to increase in P uptake and shoot P allocation under normal P availability,especially under NO3−supply,while males adopt more efficient resource use and P remobilization to maximum their tolerance to P deficiency.

关键词： dioecy photosynthetic phosphorus(P)use nitrogen form root architecture P deficiency P redistribution Populus cathayana

Responses of soil Bacterial Diversity to Fertilization are Driven by Local Environmental Context Across China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Engineering 2022年第5期8卷 164-170页

作者： Youzhi Feng Manuel Delgado-Baquerizo Yongguan Zhu Xiaozeng Han Xiaori Han Xiuli Xin Wei Li Zhibing Guo Tinghui Dang Chenhua Li Bo Zhu Zejiang Cai Daming Li Jiabao Zhang State Key Laboratory of soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Department of Physical Chemicaland Natural SystemsPablo de Olavide UniversitySevilla 41013Spain State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China National Observation station of the Hailun Agroecology System Key Laboratory of Mollisols AgroecologyNortheast Institute of Geography and AgroecologyChinese Academy of SciencesHarbin 130102China College of Land and Environment National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer ResourcesShenyang Agricultural UniversityShenyang 110866China Crop Research Institute Anhui Academy of Agricultural SciencesHefei 230001China soil and fertilizer Research Institute Anhui Academy of Agricultural SciencesHefei 230001China Institute of soil and Water Conservation Northwest A&F UniversityChinese Academy of Science&Ministry of Water ResourcesYangling 712100China Fukang station of Desert Ecology Key Laboratory of Oasis Ecology and Desert EnvironmentXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Key Laboratory of Mountain Environment Evolvement and Regulation Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China Qiyang Agroecosystem of the National Field Experimental station Yongzhou 426199China National Engineering Laboratory for Improving the Quality of Arable Land Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081China Jiangxi Institute of Red soil Nanchang 331717China

soil microbial diversity is extremely vulnerable to fertilization,which is one of the main anthropogenic activities associated with global *** we know little about how and why soil microbial diversity responds to fertilization across contrasting local ecological *** knowledge is fundamental for predicting changes in soil microbial diversity in response to ongoing global *** analyzed soils from ten 20-year field fertilization(organic and/or inorganic)experiments across China and found that the national-scale responses of soil bacterial diversity to fertilization are dependent on ecological *** acidic soils from regions with high precipitation and soil fertility,inorganic fertilization can result in further acidification,resulting in negative impacts on soil bacterial *** comparison,organic fer-tilization causes a smaller disturbance to soil bacterial *** the overall role of environmental contexts in driving soil microbial diversity,a small group of bacterial taxa were found to respond to fer-tilization in a consistent way across contrasting regions throughout *** such as Nitrosospira and Nitrososphaera,which benefit from nitrogen fertilizer addition,as well as Chitinophagaceae,Bacilli,and phototrophic bacteria,which respond positively to organic fertilization,could be used as bioindicators for soil fertility in response to fertilization at the national ***,our work provides new insights into the importance of local environmental context in determining the responses of soil microbial diver-sity to fertilization,and identifies regions with acidic soils wherein soil microbial diversity is more vul-nerable to fertilization at the national scale.

关键词： Nutrient addition Anthropogenic activity Biodiversity soil pH

Biochar-based organic fertilizer application rates for Tetrastigma hemsleyanum planted under Moso bamboo

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2020年第5期31卷 1813-1821页

作者： Xiaoping Zhang Guibin Gao Zhizhuang Wu Xing Wen Fangyuan Bian Chuanbao Yang Key Laboratory of Resources and Utilization of Bamboo of State Forestry Administration China National Bamboo Research CenterHangzhou 310012ZhejiangPeople’s Republic of China Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province Hangzhou 310012ZhejiangPeople’s Republic of China National Long-term Observation and Research station for Forest Ecosystem in Hangzhou-jiaxing-Huzhou Plain Hangzhou 310012ZhejiangPeople’s Republic of China

The under-forest economy has received increased attention in ***,little is known about the effects of co-composted biochar on soil and plant biomass in under-forest planting *** this study,plant biomass,soil nutrient levels,and bacterial communities were evaluated after application of biochar-based organic fertilizer(BOF,derived from co-composted biochar-compost)at varying rates to soils supporting Tetrastigma hemsleyanum Diels&Gilg planted under a Moso bamboo(Phyllostachys edulis)*** treatment increased the biomass of *** with the control,BOF application significantly increased soil pH and organic carbon(SOC).The high-throughput sequencing results showed significant differences in the Bacteroidetes,Verrucomicrobia,Chlorofexi,and OD1 phyla among all *** the genus level,the control group was characterized by a preponderance of *** was enriched in soils with a 3%BOF application and Steroidobacter and Spirochaeta were the most prominent phyla in the 5%BOF *** was no biomarker selected in the 1%BOF group at the genus *** conclusion,BOF application increased the biomass of *** when intercropped under a Moso bamboo forest;this effect may be due to changes in the soil physicochemical properties and microbial communities after BOF application.

关键词： Co-composted biochar Under-forest economy Plant biomass soil microbiota

Main Measures and Achievements in the Development of Organic Agriculture in Nanchong City

在线全文

学校读者我要写书评

暂无评论

Asian Agricultural Research 2019年第10期11卷 11-17页

作者： Ying GAO Changjia PENG Fengyuan LI Jiawei DU Jun LUO Ning LU Wanqiu WANG Nanchong Agricultural Information Service station Nanchong 637000China Nanchong Plant Protection and Quarantine station Nanchong 637000China Nanchong Silkworm Management station Nanchong 637000China Nanchong soil and fertilizer station Nanchong 637000China

In order to improve the quality and efficiency of agriculture,increase farmers'income steadily and rapidly,and improve the ecological environment of agriculture,a strong city of organic agriculture should be constructed in Nanchong *** on ecological agriculture,Nanchong makes great efforts to build a strong city of organic agriculture,takes environmental protection supervision as an opportunity to promote sustainable agricultural development feasibly,takes regional brands as the starting point,and promotes the development of agricultural *** main measures and achievements of the development of organic agriculture in Nanchong City are analyzed and discussed starting with the next work plan.

关键词： Organic agriculture Main measures Achievements Next work plan

Enhancing the soil and water assessment tool model for simulating N_(2)O emissions of three agricultural systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ecosystem Health and Sustainability 2017年第2期3卷 17-29页

作者： Qichun Yang Xuesong Zhang Michael Abraha Stephen Del Grosso G.P.Robertson Jiquan Chen Joint Global Change Research Institute Pacific Northwest National LaboratoryCollege ParkMaryland 20740 USA Great Lakes Bioenergy Research Center Michigan State UniversityEast LansingMichigan 48824 USA W.K.Kellogg Biological station Michigan State UniversityHickory CornersMichigan 49060 USA Agricultural Research Service United States Department of AgricultureFort CollinsColorado 80526 USA Department of Plant Soiland Microbial SciencesMichigan State UniversityEast LansingMichigan 48824 USA Department of Geography Environmentand Spatial SciencesMichigan State UniversityEast LansingMichigan 48824 USA

Nitrous oxide(N_(2)O)is a potent greenhouse gas(GHG)contributing to global warming,with the agriculture sector as the major source of anthropogenic N_(2)O emissions due to excessive fertilizer *** is an urgent need to enhance regional-/watershed-scale models,such as soil and Water Assessment Tool(SWAT),to credibly simulate N_(2)O emissions to improve assessment of environmental impacts of cropping ***,we integrated the DayCent model’s N_(2)O emission algorithms with the existing widely tested crop growth,hydrology,and nitrogen cycling algorithms in SWAT and evaluated this new tool for simulating N_(2)O emissions in three agricultural systems(i.e.,a continuous corn site,a switchgrass site,and a smooth brome grass site which was used as a reference site)located at the Great Lakes Bioenergy Research Center(GLBRC)scale-up fields in southwestern *** three systems represent different levels of management intensity,with corn,switchgrass,and smooth brome grass(reference site)receiving high,medium,and zero fertilizer application,*** indicate that the enhanced SWAT model with default parameterization reproduced well the relative magnitudes of N_(2)O emissions across the three sites,indicating the usefulness of the new tool(SWAT-N_(2)O)to estimate long-term N_(2)O emissions of diverse cropping ***,parameter calibration can significantly improve model simulations of seasonality of N_(2)O fluxes,and explained up to 22.5%-49.7%of the variability in field *** sensitivity analysis indicates that climate change(e.g.,changes in precipitation and temperature)influences N_(2)O emissions,highlighting the importance of optimizing crop management under a changing climate in order to achieve agricultural sustainability goals.

关键词： agriculture climate change greenhouse gas sensitivity analysis

Effect of corn pre-puffing on the efficiency of MgO-engineered biochar for phosphorus recovery from livestock wastewater:mechanistic investigations and cost benefit analyses

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biochar 2023年第1期5卷 462-478页

作者： Yaru Peng Yuan Luo Yimeng Li Muhammad Azeem Ronghua Li Chuchu Feng Guangzhou Qu Esmat F.Ali Mohamed A.Hamouda Peter S.Hooda Jörg Rinklebe Ken Smith Zengqiang Zhang Sabry M.Shaheen College of Natural Resources and Environment Northwest A&F UniversityYangling 712100Shaanxi ProvinceChina Key Laboratory of Urban Environment and Health Ningbo Observation and Research StationInstitute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Institute of soil and Environmental Sciences Pir Mehr Ali Shah Arid Agriculture University RawalpindiRawalpindi 46300PunjabPakistan Department of Biology College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Department of Civil and Environmental Engineering Faculty of EngineeringUnited Arab Emirates UniversityAl AinAbu DhabiUnited Arab Emirates School of Engineering and the Environments Kingston University LondonKingston University LondonKingston Upon Thames KT12EELondonUK University of Wuppertal School of Architecture and Civil EngineeringLaboratory of Soil and Groundwater ManagementInstitute of Foundation EngineeringWater-and Waste-ManagementPauluskirchstraße 742285 WuppertalGermany The Department of Environmental Science The University of ArizonaShantz Building Rm 4291177 E 4Th St.TucsonTucsonArizona 85721USA Department of Arid Land Agriculture Faculty of MeteorologyEnvironmentand Arid Land AgricultureKing Abdulaziz UniversityJeddah 21589Saudi Arabia Department of soil and Water Sciences Faculty of AgricultureUniversity of KafrelsheikhKafr El-Sheikh 33516Egypt

To improve the phosphorus(P)recovery efficiency from livestock wastewater,a novel MgO doped mildewed corn biochar with thermal pre-puffing treatment(Mg-PBC)and without pre-puffing(Mg-BC)was synthesized and *** thermal-puffing pretreatment improved the effectiveness of metal soaking and MgO dispersion.P recovery time with Mg-PBC(7 h)was significantly shorter than that with Mg-BC(12 h).Moreover,Mg-PBC showed significantly higher P recovery capacity(241 mg g^(−1))than Mg-BC(96.6 mg g^(−1)).P recovery capacity of the Mg-PBC fitted to the Thomas model was 90.7 mg g^(−1),which was 4 times higher than that of Mg-BC(22.9 mg g^(−1))under column test *** mechanisms involved in P recovery included precipitation,surface complexation,and electrostatic *** adsorption,both Mg-BC and Mg-PBC showed relatively low regeneration *** P loaded Mg-BC(Mg-BC-P)and Mg-PBC(Mg-PBC-P),the later particularly,obviously increased the available P content and promoted plant *** release of P increased with time in the Mg-PBC-P treated soil,while it decreased with time in the P fertilizer treated soil.A cost-benefit analysis revealed that thermal-puffing pretreatment greatly increased the profit of MgO doped biochar from−0.66 to 5.90 US$kg^(−1).These findings highlight that biomass pre-puffing is a feasible treatment to produce MgO modified biochar and to recover P from livestock wastewater,and that the Mg-PBC-P can be used as a slow-release P fertilizer.

关键词： Engineered biochar Biomass pre-puffing Nutrient recovery Wastewater engineering Cost-benefit analysis

Effect of Fertilization on Anatomical and Physical-mechanical Properties of Neosinocalamus Affinis Bamboo

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Bioresources and Bioproducts 2019年第1期4卷 67-72页

作者： Jiulong XIE Jinqiu QI Hongling HU Cornelis F DE HOOP Hui XIAO Yuzhu CHEN Chungyun HSE College of Forestry Sichuan Agricultural UniversityChengdu 611130China School of Renewable Natural Resource Louisiana State University Agricultural CenterBaton RougeLA70803USA Southern Research station USDA Forest ServicePinevilleLA71360USA

In order to maintain soil fertility of Neosinocalamus affinis plantations,fertilizers of N,P,and K were *** anatomical and physical-mechanical properties of *** bamboo wood from different fertilization treatments were *** aim of this study was to elucidate the effect of fertilization practice on the properties of *** bamboo *** results revealed that the fertilization of P and K resulted in a slight reduction in fiber *** application of P,K,and low level(0.3 kg/clump)of N fertilizers had no significant effect on the fiber morphology,while high level(0.9 kg/clump)of N fertilizer contributed to short *** specific gravity was significantly decreased by fertilization,while the volume shrinkage was *** the effect of various fertilization treatments had different influence patterns on the properties of ***,specific evaluations on the quality of the fertilized bamboo wood should be performed prior to its utilization.

关键词： fertilization anatomy physical-mechanical properties Neosinocalamus affinis