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1. Impact of soluble organic matter and particulate organic matter on anammox system: Performance, microbial community and N2O production

Author:
Yingying He; Hongyu Mao; Jacek Makinia; Jakub Drewnowski; Bing Wu; Jun Xu; Li Xie; Xi Lu
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 146-155
ISSN:
1001-0742
Subject:
long term experiments,   etc   ; Thauera; anaerobic ammonium oxidation; biodegradability; carbon; denitrification; microbial communities; models; nitrogen; nitrous oxide production; particulate organic matter; China;     Show all 12 Subjects
Abstract:
... In this study, the effects of soluble readily biodegradable COD (sCOD) and particulate slowly biodegradable COD (pCOD) on anammox process were investigated. The results of the long-term experiment indicated that a low sCOD/N ratio of 0.5 could accelerate the anammox and denitrification activity, to reach as high as 84.9%±2.8% TN removal efficiency. Partial denitrification-anammox (PDN/anammox) and ...
DOI:
10.1016/j.jes.2021.11.007

2. Agrotechnological Potential of Organic Carbon Management in Grain-Fallow Crop Rotation on Ordinary Chernozems

Author:
I. T. Khusniev; V. A. Romanenkov; S. V. Pasko; I. A. Ilyichev
Source:
Russian agricultural sciences 2022 v.48 no.4 pp. 276-282
ISSN:
1068-3674
Subject:
long term experiments,   etc   ; Chernozems; agricultural research; arable soils; crop rotation; fertilizers; models; organic carbon;     Show all 8 Subjects
Abstract:
... The study was carried out in order to assess the agrotechnological potential of organic carbon management in arable soil: medium thick, micellar-carbonate, heavy loamy ordinary chernozem. The work was carried out in a long-term experiment of the Geographical Network of Field Experiments with Fertilizers, founded in 1974 by the Federal Rostov Agricultural Research Center. The dynamics of organic ca ...
DOI:
10.3103/S1068367422040073

3. Wheat nitrogen response conditional on past yield and rainfall: A step in improving optimal nitrogen applications

Author:
Brian E. Mills; B. Wade Brorsen; Emilio Tostão; Jon T. Biermacher
Source:
Agricultural & environmental letters 2022 v.7 no.1 pp. e20061
ISSN:
2471-9625
Subject:
long term experiments,   etc   ; Triticum aestivum; information sources; meteorological data; nitrogen; nitrogen fertilizers; rain; winter wheat; Oklahoma;     Show all 9 Subjects
Abstract:
... Making precision nitrogen (N) application clearly profitable will likely require incorporating multiple sources of information. Low‐cost sources of information include rainfall and the previous year's yield. This paper uses data from a long‐term experiment on the response of winter wheat (Triticum aestivum L.) to N fertilizer, as well as rainfall data from the University of Oklahoma's Mesonet weat ...
DOI:
10.1002/ael2.20061

4. Impact of Balanced Fertilization on Carbon and Nutrient Dynamics under Long-Term Jute-Rice-Lentil Cropping System in Alluvial Soils of Eastern India

Author:
Sonali Paul Mazumdar; Amit Ranjan Saha; Bijan Majumdar; Mukesh Kumar; Nurnabi Meherul Alam; Ritesh Saha; Pradip Dey; Gouranga Kar
Source:
Communications in soil science and plant analysis 2022 v.53 no.13 pp. 1574-1591
ISSN:
1532-2416
Subject:
long term experiments,   etc   ; animal manures; microbial carbon; mineral fertilizers; nutrient management; plant analysis; soil organic carbon; soil quality; India;     Show all 9 Subjects
Abstract:
... A long-term experiment was conducted for 8 years to assess the impact of imbalance and balance fertilization based on soil test-based nutrient management practices on different carbon fractions, carbon (C) stocks, sequestration, C indexes and soil quality under Jute-rice-lentil cropping system in subtropical India. The 10 treatments were laid out in a randomized block design. Treatments included t ...
DOI:
10.1080/00103624.2022.2060250

5. Ebullition-facilitated mobilization of trapped dense non-aqueous phase liquid at residual saturation from sandy sediments

Author:
Jian Wu; Ariel Nunez Garcia; Kevin G. Mumford
Source:
Journal of environmental management 2022 v.317 pp. 115448
ISSN:
0301-4797
Subject:
long term experiments,   etc   ; air; capillarity; creosote; dense nonaqueous phase liquids; heptane; hydrophobicity; nitrogen; petroleum; regression analysis; remediation; sand; solvents;     Show all 13 Subjects
Abstract:
... Gas ebullition can mobilize dense non-aqueous phase liquids (DNAPLs) from sediments to the overlying water column, increasing the DNAPL-impacted area and posing serious challenges to the remediation and management of contaminated sediments. Despite this, there have been few laboratory studies focused on gas ebullition-facilitated transport of DNAPL. In this study, bubble-facilitated transport was ...
DOI:
10.1016/j.jenvman.2022.115448

6. Interactive effects of tree species composition and water availability on growth and direct and indirect defences in Quercus ilex

Author:
Andrea Galmán; Carla Vázquez‐González; Gregory Röder; Bastien Castagneyrol
Source:
Oikos 2022 v.2022 no.5 pp. e09125
ISSN:
0030-1299
Subject:
long term experiments,   etc   ; Betula pendula; Pinus pinaster; Quercus ilex; irrigation; leaves; phenolic compounds; species diversity; trees; volatile organic compounds;     Show all 10 Subjects
Abstract:
... Plant diversity has often been reported to decrease insect herbivory in plants. Of the numerous mechanisms that have been proposed to explain this phenomenon, how plant diversity influences plant defences via effects on growth has received little attention. In addition, plant diversity effects may be contingent on abiotic conditions (e.g. resource and water availability). Here, we used a long‐term ...
DOI:
10.1111/oik.09125

7. Effect of long-term fertilization on phosphorus fractions in different soil layers and their quantitative relationships with soil properties

Author:
Qiong WANG; Zhen-han QIN; Wei-wei ZHANG; Yan-hua CHEN; Ping ZHU; Chang PENG; Le WANG; Shu-xiang ZHANG; Gilles COLINET
Source:
Journal of integrative agriculture 2022 v.21 no.9 pp. 2720-2733
ISSN:
2095-3119
Subject:
long term experiments,   etc   ; agriculture; aluminum; corn; iron; nitrogen; phosphorus fertilizers; potassium; soil minerals; soil organic matter; soil profiles; subsoil;     Show all 12 Subjects
Abstract:
... Investigating the dynamics and distribution of soil phosphorus (P) fractions can provide a basis for enhancing P utilization by crops. Four treatments from a 29-year long-term experiment in black soil with maize cropping were involved in this study: no fertilizer (CK), inorganic nitrogen and potassium (NK), inorganic nitrogen, phosphorus, and potassium (NPK), and NPK plus manure (NPKM). We analyze ...
DOI:
10.1016/j.jia.2022.07.018

8. Up-flow anaerobic column reactor for sulfate-rich cadmium-bearing wastewater purification: system performance, removal mechanism and microbial community structure

Author:
Yongrong Jiang; Jie Zhang; Qianmin Wen; Junjian Zheng; Yuanyuan Zhang; Qiaoyan Wei; Yongli Qin; Xuehong Zhang
Source:
Biodegradation 2022 v.33 no.3 pp. 239-253
ISSN:
0923-9820
Subject:
long term experiments,   etc   ; Desulforhabdus; Desulfovibrio; Desulfurella; adsorption; anaerobes; biodegradation; cadmium; carbonates; community structure; methanogens; microbial communities; sludge; sulfates; wastewater;     Show all 15 Subjects
Abstract:
... This study constructed an up-flow anaerobic column reactor fed with synthetic sulfate-rich cadmium (Cd(II))-bearing wastewater, for investigating its Cd(II) removal performance and mechanism. Long-term experiment results manifest that introducing Cd(II) into influent led to an enhanced sulfate removal but did not increase the effluent sulfide concentration, implying the CdS formation. When influen ...
DOI:
10.1007/s10532-022-09983-0

9. Alternative combinations of tillage practices and crop rotations can foster earthworm density and bioturbation

Author:
Kaisa A. Torppa; Astrid R. Taylor
Source:
Applied soil ecology 2022 v.175 pp. 104460
ISSN:
0929-1393
Subject:
long term experiments,   etc   ; Brassica napus; barley; bioturbation; community structure; conventional tillage; crop rotation; earthworms; intensive farming; soil; soil ecology; wheat;     Show all 12 Subjects
Abstract:
... Earthworms, which contribute to important soil functions, suffer from intensive agriculture. Their response depends among other things on the earthworm ecological group (anecic, endogeic, epigeic) and the combination of the applied farming practices. To advice on methodological adaptations that enhance earthworm-mediated soil functions, effects of different practices on earthworms need to be studi ...
DOI:
10.1016/j.apsoil.2022.104460

10. Long-term experiment on p-type crystalline PV module with potential induced degradation: Impact on power performance and evaluation of recovery mode

Author:
Abdellatif Bouaichi; Ahmed Alami Merrouni; Aumeur El Amrani; Bengt Jaeckel; Charaf Hajjaj; Zakaria Naimi; Choukri Messaoudi
Source:
Renewable energy 2022 v.183 pp. 472-479
ISSN:
0960-1481
Subject:
long term experiments,   etc   ; arid zones; durability; electrochemiluminescence; energy; renewable energy sources; semiarid zones; silicon; solar collectors; solar farms; thermography; Morocco;     Show all 12 Subjects
Abstract:
... The potential induced degradation (PID) phenomenon of p-type c-Si photovoltaic technology is a severe degradation mode that caught the attention of researchers since it can significantly affect the energy production of the PV plants. Various modeling/lab-tests have been conducted but very few are the in-situ experiments estimating the behavior of PID under real operating conditions on desert clima ...
DOI:
10.1016/j.renene.2021.11.031

11. No-till farming and greenhouse gas fluxes: Insights from literature and experimental data

Author:
S.J. Ruis; H. Blanco-Canqui; P.J. Jasa; V.L. Jin
Source:
Soil & tillage research 2022 v.220 pp. 105359
ISSN:
0167-1987
Subject:
long term experiments,   etc   ; Glycine max; Zea mays; carbon dioxide; corn; no-tillage; reduced tillage; research; soil temperature; soybeans; water content;     Show all 11 Subjects
Abstract:
... Tillage intensity may differently impact gaseous losses of C and N to the atmosphere, but data from long-term experiments are relatively few. Yet, this information is needed to better understand C and N losses and gains in agricultural systems. The objective of this study was to determine how tillage intensity affects soil greenhouse gas (GHG) fluxes (CO₂, N₂O, and CH₄) by comparing experimental d ...
Handle:
10113/7694131
DOI:
10.1016/j.still.2022.105359

12. Increase in yield and nitrogen use efficiency of double rice with long-term application of controlled-release urea

Author:
Chang TIAN; Ming-xue SUN; Xuan ZHOU; Juan LI; Gui-xian XIE; Xiang-dong YANG; Jian-wei PENG
Source:
Journal of integrative agriculture 2022 v.21 no.7 pp. 2106-2118
ISSN:
2095-3119
Subject:
long term experiments,   etc   ; agriculture; fertilizer rates; financial economics; nitrogen; nitrogen fertilizers; nutrient use efficiency; rice; soil; soil minerals; urea; China;     Show all 12 Subjects
Abstract:
... Controlled-release urea (CRU) has better characteristics than conventional urea for synchronizing nitrogen (N) release with plant uptake. Understanding the effects of CRU on crop yield and N use efficiency (NUE) has long been the key to evaluate the performance of CRU. A long-term experiment over five consecutive years was conducted in Changsha, Hunan Province, China, to investigate the effects of ...
DOI:
10.1016/S2095-3119(21)63734-6

13. Porous graphene oxide surface-coated thin-film composite membrane for simultaneously increasing permeation performance and organic-fouling migration capacities

Author:
Qian Zhou; Pin Zhao; Rongming Xu; Zhiwei Wang; Weilong Song; Xinhua Wang
Source:
Journal of membrane science 2022 v.661 pp. 120942
ISSN:
0376-7388
Subject:
long term experiments,   etc   ; films (materials); graphene oxide; hydrophilicity; membrane permeability; nanopores; osmosis; polyamides; porosity; sodium alginate; thin film composite membranes;     Show all 11 Subjects
Abstract:
... Introduction graphene oxide (GO) onto thin film composite (TFC) membrane surface shows great potential for fouling mitigation. However, GO surface-coating decreases the membrane permeability. In this study, porous GO (PGO) with relatively complete lamellar structure at proper pore size was tailored and coated into the polyamide (PA) layer of TFC membrane via layer-by-layer method. PGO surface-coat ...
DOI:
10.1016/j.memsci.2022.120942

14. Uranium stability in a large wetland soil core probed by electron acceptors, carbonate amendments and wet-dry cycling in a long-term lysimeter experiment

Author:
Marietta Straub; Jasquelin Peña; Virginie Flury; Pascal Froidevaux
Source:
Science of the total environment 2022 v.803 pp. 149783
ISSN:
0048-9697
Subject:
long term experiments,   etc   ; carbonates; drought; environment; lysimeters; organic matter; pH; remediation; soil pore water; sulfates; uranium; water table; wetland soils;     Show all 13 Subjects
Abstract:
... Understanding the hydro-biogeochemical conditions that impact the mobility of uranium (U) in natural or artificial wetlands is essential for the management of contaminated environments. Field-based research indicates that high organic matter content and saturation of the soil from the water table create favorable conditions for U accumulation. Despite the installation of artificial wetlands for U ...
DOI:
10.1016/j.scitotenv.2021.149783

15. Environmental determination of spring wheat yield in a climatic transition zone under global warming

Author:
Funian Zhao; Jun Lei; Runyuan Wang; Qiang Zhang; Yue Qi; Kai Zhang; Qu Guo; Heling Wang
Source:
International journal of biometeorology 2022 v.66 no.3 pp. 481-491
ISSN:
0020-7128
Subject:
long term experiments,   etc   ; bioclimatology; evaporative demand; evapotranspiration; irrigation; semiarid zones; soil water content; spring wheat; temperature; water supply; water yield; China;     Show all 12 Subjects
Abstract:
... Understanding environmental determination of crop yield plays a critical role in agricultural. management in resource-limited areas. The climatic transition zone was a naturally ideal place to study. the relations between environmental factors and crop yield, due to its large annual variability of climatic factors and high speed of temperature increase under global warming. Our objectives were to ...
DOI:
10.1007/s00484-021-02196-9

16. Evaluation of the joint effects of Cu2+, Zn2+ and Mn2+ on completely autotrophic nitrogen-removal over nitrite (CANON) process

Author:
Liru Fan; Huayu Li; Yao Chen; Fangxu Jia; Tao Liu; Jianhua Guo; Hong Yao
Source:
Chemosphere 2022 v.286 pp. 131896
ISSN:
0045-6535
Subject:
long term experiments,   etc   ; anaerobic ammonium oxidation; bioreactors; data collection; denitrification; energy; heavy metals; mathematical models; nitrites; nitrogen; response surface methodology; wastewater;     Show all 12 Subjects
Abstract:
... The completely autotrophic nitrogen-removal over nitrite (CANON) process has merits in energy saving and consumption reducing, thus being considered as an attractive alternative over the common denitrification technology. In this study, the effects of three common heavy metals (Cu²⁺, Zn²⁺ and Mn²⁺) in wastewater to the CANON process were evaluated comprehensively. A central composite design with r ...
DOI:
10.1016/j.chemosphere.2021.131896

17. No Tillage Increases SOM in Labile Fraction but Not Stable Fraction of Andosols from a Long-Term Experiment in Japan

Author:
Jeannette Aduhene-Chinbuah; Soh Sugihara; Masakazu Komatsuzaki; Tomoyasu Nishizawa; Haruo Tanaka
Source:
Agronomy 2022 v.12 no.2 pp. -
ISSN:
2073-4395
Subject:
long term experiments,   etc   ; Andosols; Japan; agronomy; carbon; clay; conventional tillage; field experimentation; fractionation; nitrogen; organic phosphorus; silt; soil organic matter; soil quality;     Show all 14 Subjects
Abstract:
... No tillage (NT) fosters carbon (C) sequestration, increases soil organic matter (SOM) stock, and improves soil health. However, its effect on SOM accumulation in Andosol, which has high OM stabilization characteristics due to its specific mineral properties, remains unclear. In this study, we evaluated the effect of NT on SOM content and its distribution by the physical fractionation method and as ...
DOI:
10.3390/agronomy12020479

18. Productivity, light interception and radiation use efficiency of organic and conventional arable cropping systems

Author:
Laura Sofie Harbo; Chiara De Notaris; Jin Zhao; Jørgen E. Olesen
Source:
European journal of agronomy 2022 v.132 pp. 126407
ISSN:
1161-0301
Subject:
long term experiments,   etc   ; aboveground biomass; agronomy; crop rotation; crop yield; faba beans; manure spreading; radiation use efficiency; reflectance; soil fertility; spring; Denmark;     Show all 12 Subjects
Abstract:
... How the productivity of crops in organic arable farming may be sustainably increased remains a key issue. We combined measurements of crop yield, total aboveground biomass (AGB) and light interception over a 4-year crop rotation cycle from 2015 to 2018 in a long-term experiment in Denmark with arable organic and conventional cropping systems. These cropping systems comprise one conventional (CGL) ...
DOI:
10.1016/j.eja.2021.126407

19. Sustaining maize yields and soil carbon following land clearing in the forest–savannah transition zone of West Africa: Results from a 20-year experiment

Author:
Rémi Cardinael; Hervé Guibert; Soumaïla T. Kouassi Brédoumy; Jacques Gigou; Kouadio Emmanuel N'Goran; Marc Corbeels
Source:
Field crops research 2022 v.275 pp. 108335
ISSN:
0378-4290
Subject:
long term experiments,   etc   ; Fabaceae; carbon sequestration; composts; corn; grain yield; models; nitrogen; research; soil; soil fertility; soil organic carbon; standard deviation; Cote d'Ivoire;     Show all 14 Subjects
Abstract:
... Sustainable alternatives to slash-and-burn shifting cultivation in the (sub)humid tropics rely on the use of external nutrient inputs to address soil fertility decline. The use of organic inputs is widely accepted as a practice to improve soil fertility, in particular soil organic carbon (SOC). On the other hand, its combined use with mineral fertilizer has the potential to maintain or increase cr ...
DOI:
10.1016/j.fcr.2021.108335

20. How Do Long Term Crop Rotations Influence Weed Populations: Exploring the Impacts of More than 50 Years of Crop Management in Serbia

Author:
Markola Saulic; Mostafa Oveisi; Ivica Djalovic; Dragana Bozic; Alireza Pishyar; Aleksandra Savić; PV Vara Prasad; Sava Vrbničanin
Source:
Agronomy 2022 v.12 no.8 pp. -
ISSN:
2073-4395
Subject:
long term experiments,   etc   ; agroecosystems; agronomy; composts; corn; crop production; crop rotation; management systems; mineral fertilizers; soil; soybeans; sustainable agriculture; weeds; winter wheat; Serbia;     Show all 15 Subjects
Abstract:
... Crop rotation is known as an eco-friendlier approach, as provides diversification in crop management systems, modifies intensive pressure on the agricultural ecosystem, utilizes various soil horizons, and prevents the establishment of specific pests and weeds. We set out here a study on the farms that have been managed over 50 years of specific continuous crop management programs. The experimental ...
DOI:
10.3390/agronomy12081772