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https://www.readbyqxmd.com/read/28814759/influence-of-film-mulching-on-soil-microbial-community-in-a-rainfed-region-of-northeastern-china
#1
Wenyi Dong, Pengfei Si, Enke Liu, Changrong Yan, Zhe Zhang, Yanqing Zhang
Information about the effect of plastic film mulching (PFM) on the soil microbial communities of rainfed regions remains scarce. In the present study, Illumina Hiseq sequencer was employed to compare the soil bacterial and fungal communities under three treatments: no mulching (NM), spring mulching (SM) and autumn mulching (AM) in two layers (0-10 and, 10-20 cm). Our results demonstrated that the plastic film mulching (PFM) application had positive effects on soil physicochemical properties as compared to no-mulching (NM): higher soil temperature (ST), greater soil moisture content (SMC) and better soil nutrients...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28803379/effects-of-live-myriophyllum-aquaticum-and-its-straw-on-cadmium-accumulation-in-nasturtium-officinale
#2
Kewen Huang, Lijin Lin, Fabo Chen, Ming'an Liao, Jin Wang, Yi Tang, Yunsong Lai, Dong Liang, Hui Xia, Xun Wang, Wei Ren
The purpose of this study is to determine whether the allelopathy of living Myriophyllum aquaticum and its straw has the same effects; two pot experiments were conducted to study the effects of intercropping using M. aquaticum and its straw on the growth and cadmium (Cd) accumulation of Nasturtium officinale. Different planting ratios (1:3, 2:2 and 3:1) of N. officinale and M. aquaticum led to an increase in the biomass of both plant species and increased the Cd content in roots and shoots of N. officinale, but led to a reduction in the Cd content in roots and shoots of M...
August 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28747000/response-of-soil-dissolved-organic-matter-to-microplastic-addition-in-chinese-loess-soil
#3
Hongfei Liu, Xiaomei Yang, Guobin Liu, Chutao Liang, Sha Xue, Hao Chen, Coen J Ritsema, Violette Geissen
Plastic debris is accumulating in agricultural land due to the increased use of plastic mulches, which is causing serious environmental problems, especially for biochemical and physical properties of the soil. Dissolved organic matter (DOM) plays a central role in driving soil biogeochemistry, but little information is available on the effects of plastic residues, especially microplastic, on soil DOM. We conducted a soil-incubation experiment in a climate-controlled chamber with three levels of microplastic added to loess soil collected from the Loess Plateau in China: 0% (control, CK), 7% (M1) and 28% (M2) (w/w)...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28724103/nematode-community-response-to-green-infrastructure-design-in-a-semiarid-city
#4
Mitchell A Pavao-Zuckerman, Christine Sookhdeo
Urbanization affects ecosystem function and environmental quality through shifts in ecosystem fluxes that are brought on by features of the built environment. Green infrastructure (GI) has been suggested as a best management practice (BMP) to address urban hydrologic and ecological impacts of the built environment, but GI practice has only been studied from a limited set of climatic conditions and disciplinary approaches. Here, we evaluate GI features in a semiarid city from the perspective of soil ecology through the application of soil nematode community analysis...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28713395/economic-and-environmental-assessment-of-seed-and-rhizome-propagated-miscanthus-in-the-uk
#5
Astley Hastings, Michal Mos, Jalil A Yesufu, Jon McCalmont, Kai Schwarz, Reza Shafei, Chris Ashman, Chris Nunn, Heinrich Schuele, Salvatore Cosentino, Giovanni Scalici, Danilo Scordia, Moritz Wagner, John Clifton-Brown
Growth in planted areas of Miscanthus for biomass in Europe has stagnated since 2010 due to technical challenges, economic barriers and environmental concerns. These limitations need to be overcome before biomass production from Miscanthus can expand to several million hectares. In this paper, we consider the economic and environmental effects of introducing seed based hybrids as an alternative to clonal M. x giganteus (Mxg). The impact of seed based propagation and novel agronomy was compared with current Mxg cultivation and used in 10 commercially relevant, field scale experiments planted between 2012 and 2014 in the United Kingdom, Germany, and Ukraine...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28657129/acetyl-coa-production-from-pyruvate-is-not-necessary-for-preservation-of-myelin
#6
Gustavo Della-Flora Nunes, Lauren Mueller, Nicholas Silvestri, Mulchand S Patel, Lawrence Wrabetz, M Laura Feltri, Yannick Poitelon
Oligodendrocytes and Schwann cells not only form myelin in the central and peripheral nervous system, but also provide metabolic and trophic support to the axons they ensheathe. Acetyl-CoA is potentially a key molecule in Schwann cells and oligodendrocytes because it is at the crossroads of cellular lipid biosynthesis and energy generation. The main route for acetyl-CoA production is the oxidation of pyruvate by the pyruvate dehydrogenase complex (PDC). PDC deficiency in humans results in neurodegeneration and developmental impairments in both white and gray matter structures...
June 28, 2017: Glia
https://www.readbyqxmd.com/read/28648493/the-use-of-fructosamine-in-cystic-fibrosis-related-diabetes-cfrd-screening
#7
Grace Y Lam, Michelle Doll-Shankaruk, Jan Dayton, Karina Rodriguez-Capote, Trefor N Higgins, Dylan Thomas, Kimberley Mulchey, Maeve P Smith, Neil E Brown, Winnie M Leung, Mathew P Estey
OBJECTIVE: To determine whether serum fructosamine correlates with glycemic control and clinical outcomes in patients being screened for cystic fibrosis-related diabetes (CFRD). METHODS: Fructosamine and percent predicted forced expiratory volume in 1s (FEV1) were measured in patients undergoing a 2h oral glucose tolerance test (OGTT) for CFRD screening. Fractional serum fructosamine (FSF) was calculated as fructosamine/total protein. RESULTS: FSF exhibited a positive correlation with 2h OGTT results (r(2)=0...
June 22, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28622652/deterioration-pattern-of-six-biodegradable-potentially-low-environmental-impact-mulches-in-field-conditions
#8
Marta M Moreno, Sara González-Mora, Jaime Villena, Juan A Campos, Carmen Moreno
Polyethylene plastic mulches are widely used in agriculture due to the countless advantages they have. However, the environmental problems associated with their use have led us to look for alternative mulch materials which degrade naturally and quickly, impact the environment less and function satisfactorily. To this end, biodegradable plastics and paper mulches are being used, but aspects related to their degradation should be studied more in-depth. This work provides the deterioration pattern of six biodegradable mulch materials (i...
June 13, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28611817/rational-water-and-nitrogen-management-improves-root-growth-increases-yield-and-maintains-water-use-efficiency-of-cotton-under-mulch-drip-irrigation
#9
Hongzhi Zhang, Aziz Khan, Daniel K Y Tan, Honghai Luo
There is a need to optimize water-nitrogen (N) applications to increase seed cotton yield and water use efficiency (WUE) under a mulch drip irrigation system. This study evaluated the effects of four water regimes [moderate drip irrigation from the third-leaf to the boll-opening stage (W1), deficit drip irrigation from the third-leaf to the flowering stage and sufficient drip irrigation thereafter (W2), pre-sowing and moderate drip irrigation from the third-leaf to the boll-opening stage (W3), pre-sowing and deficit drip irrigation from the third-leaf to the flowering stage and sufficient drip irrigation thereafter (W4)] and N fertilizer at a rate of 520 kg ha(-1) in two dressing ratios [7:3 (N1), 2:8 (N2)] on cotton root morpho-physiological attributes, yield, WUE and the relationship between root distribution and dry matter production...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28607420/yield-phenology-relations-and-water-use-efficiency-of-maize-zea-mays-l-in-ridge-furrow-mulching-system-in-semiarid-east-african-plateau
#10
Fei Mo, Jian-Yong Wang, Feng-Min Li, Simon N Nguluu, Hong-Xu Ren, Hong Zhou, Jian Zhang, Charles W Kariuki, Patrick Gicheru, Levis Kavagi, Wesly K Cheruiyot, You-Cai Xiong
Yield-phenology relation is a critical issue affecting rainfed maize field productivity in semiarid east African Plateau (EAP). We first introduced Chinese ridge-furrow mulching (RFM) system to EAP, using three maize cultivars with early-, mid- and late-maturing traits as test materials. A two-year field experiment was conducted in a semiarid farm of Kenya from 2012 to 2013. Three treatments were designed: alternative ridge and furrow with transparent plastic mulching (FT), with black plastic mulching (FB) and without mulching (CK)...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28567681/study-on-the-removal-of-hormones-from-domestic-wastewaters-with-lab-scale-constructed-wetlands-with-different-substrates-and-flow-directions
#11
José Alberto Herrera-Melián, Rayco Guedes-Alonso, Alejandro Borreguero-Fabelo, José Juan Santana-Rodríguez, Zoraida Sosa-Ferrera
Eight wastewater samples from a university campus were analysed between May and July of 2014 to determine the concentration of 14 natural and synthetic steroid hormones. An on-line solid-phase extraction combined with ultra-high performance liquid chromatography coupled with mass spectrometry (on-line SPE-UHPLC-MS/MS) was used as extraction, pre-concentration and detection method. In the samples studied, three oestrogens (17β-estradiol, estrone and estriol), two androgens (boldenone and testosterone), three progestogens (norgestrel, progesterone and norethisterone) and one glucocorticoid (prednisone) were detected...
May 31, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28560101/restoring-lepidopteran-diversity-in-a-tropical-dry-forest-relative-importance-of-restoration-treatment-tree-identity-and-predator-pressure
#12
Lizet Solis-Gabriel, Wendy Mendoza-Arroyo, Karina Boege, Ek Del-Val
Tropical dry forests (TDFs) have been widely transformed by human activities worldwide and the ecosystem services they provide are diminishing. There has been an urgent call for conservation and restoration of the degraded lands previously occupied by TDFs. Restoration experiences aim to recover species diversity and ecological functions. Different restoration strategies have been used to maximize plant performance including weeding, planting or using artificial mulching. In this investigation, we evaluated whether different restoration practices influence animal arrival and the reestablishment of biotic interactions...
2017: PeerJ
https://www.readbyqxmd.com/read/28539923/analysis-on-fungal-diversity-in-rhizosphere-soil-of-continuous-cropping-potato-subjected-to-different-furrow-ridge-mulching-managements
#13
Shuhao Qin, Stephen Yeboah, Xuexue Xu, Yuhui Liu, Bin Yu
Knowledge about fungi diversity following different planting patterns could improve our understanding of soil processes and thus help us to develop sustainable management strategies. The objective of this study was to determine the impact of different furrow-ridge mulching techniques on fungal diversity in rhizosphere soil under continuous cropping system. The investigated treatments were: flat plot without mulch (CK); flat plot with mulch (T1); on-ridge planting with full mulch (T2); on-furrow planting with full mulch (T3); on-ridge planting with half mulch (T4); and on-furrow planting with half mulch (T5)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28517237/development-of-an-alginate-hydrogel-to-deliver-aqueous-bait-for-pest-ant-management
#14
Jia-Wei Tay, Mark S Hoddle, Ashok Mulchandani, Dong-Hwan Choe
BACKGROUND: Insecticide sprays used for ant control cause environmental contamination. Liquid bait is a safe and effective alternative, but it requires bait stations to dispense the toxicant. We developed a biodegradable hydrogel to deliver liquid bait obviating the need for bait stations. RESULTS: Alginate hydrogel beads with preferred rigidity and maximum hydration in 25% sucrose solution were engineered by optimizing a crosslinking process. The moisture content of the substrate on which the beads were placed and the relative atmospheric humidity significantly influenced water loss dynamics of the hydrated hydrogel beads...
May 18, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28504353/cmip-haploinsufficiency-in-two-patients-with-autism-spectrum-disorder-and-co-occurring-gastrointestinal-issues
#15
Minjie Luo, Jinbo Fan, Tara L Wenger, Margaret H Harr, Melissa Racobaldo, Surabhi Mulchandani, Holly Dubbs, Elaine H Zackai, Nancy B Spinner, Laura K Conlin
Autism spectrum disorder (ASD) is a genetically heterogeneous group of disorders characterized by impairments in social communication and restricted interests. Though some patients with ASD have an identifiable genetic cause, the cause of most ASD remains elusive. Many ASD susceptibility loci have been identified through clinical studies. We report two patients with syndromic ASD and persistent gastrointestinal issues who carry de novo deletions involving the CMIP gene detected by genome-wide SNP microarray and fluorescence in situ hybridization (FISH) analysis...
May 15, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28481923/nitrapyrin-addition-mitigates-nitrous-oxide-emissions-and-raises-nitrogen-use-efficiency-in-plastic-film-mulched-drip-fertigated-cotton-field
#16
Tao Liu, Yongchao Liang, Guixin Chu
Nitrification inhibitors (NIs) have been used extensively to reduce nitrogen losses and increase crop nitrogen nutrition. However, information is still scant regarding the influence of NIs on nitrogen transformation, nitrous oxide (N2O) emission and nitrogen utilization in plastic-film-mulched calcareous soil under high frequency drip-fertigated condition. Therefore, a field trial was conducted to evaluate the effect of nitrapyrin (2-chloro-6-(trichloromethyl)-pyridine) on soil mineral nitrogen (N) transformation, N2O emission and nitrogen use efficiency (NUE) in a drip-fertigated cotton-growing calcareous field...
2017: PloS One
https://www.readbyqxmd.com/read/28475960/health-risk-assessment-of-exposure-to-the-middle-eastern-dust-storms-in-the-iranian-megacity-of-kermanshah
#17
G Goudarzi, S M Daryanoosh, H Godini, P K Hopke, P Sicard, A De Marco, H D Rad, A Harbizadeh, F Jahedi, M J Mohammadi, J Savari, S Sadeghi, Z Kaabi, Y Omidi Khaniabadi
OBJECTIVE: This study assessed the effects of particulate matter (PM), equal or less than 10 μm in aerodynamic diameter (PM10), from the Middle-Eastern Dust events on public health in the megacity of Kermanshah (Iran). STUDY DESIGN: This study used epidemiological modeling and monitored ambient air quality data to estimate the potential PM10 impacts on public health. METHODS: The AirQ2.2.3 model was used to calculate mortality and morbidity attributed to PM10 as representative of dust events...
July 2017: Public Health
https://www.readbyqxmd.com/read/28448937/assessment-of-n2o-emissions-from-a-fertilised-vegetable-cropping-soil-under-different-plant-residue-management-strategies-using-15-n-tracing-techniques
#18
M Rezaei Rashti, W J Wang, C R Chen, S H Reeves, C Scheer
Combined application of plant residues and N fertilisers strongly affect soil mineral N dynamics and N2O emissions depending on the quality of the plant residues, their application methods and other management strategies. We investigated the effect of combined application of two vegetable plant residues (cauliflower and sweet corn) and (15)N fertiliser on N dynamics and N2O emission in a glasshouse pot study. The experiment was conducted under two residue management practices (soil incorporation vs surface mulching) over 98days with growing basil (Ocimum basilicum) plants...
November 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28428798/plastic-film-mulching-for-enhanced-water-use-efficiency-and-economic-returns-from-maize-fields-in-semiarid-china
#19
Peng Zhang, Ting Wei, Tie Cai, Shahzad Ali, Qingfang Han, Xiaolong Ren, Zhikuan Jia
Film mulch has gradually been popularized to increase water availability to crops for improving and stabilizing agricultural production in the semiarid areas of Northwest China. To find more sustainable and economic film mulch methods for alleviating drought stress in semiarid region, it is necessary to test optimum planting methods in same cultivation conditions. A field experiment was conducted during 2013 and 2014 to evaluate the effects of different plastic film mulch methods on soil water, soil temperature, water use efficiency (WUE), yield and revenue...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28384339/correction-dynamic-changes-of-soil-surface-organic-carbon-under-different-mulching-practices-in-citrus-orchards-on-sloping-land
#20
Chiming Gu, Yi Liu, Ibrahim Mohamed, Runhua Zhang, Xiao Wang, Xinxin Nie, Min Jiang, Margot Brooks, Fang Chen, Zhiguo Li
[This corrects the article DOI: 10.1371/journal.pone.0168384.].
2017: PloS One
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