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research-article | 18-March-2020

Soil texture, infective juvenile concentration, and soil organic matter influence the efficacy of Steinernema feltiae isolate Lican Ray

of organic matter (OM), and others, such as IJ concentration, application method and distance from the host, also affect the effectivity of the IJ (Choo and Kaya, 1991; Shapiro et al., 2000; Sharma et al., 2011; Griffin, 2015). Regarding IJ concentration, many studies have focused on this factor for the control of different pest species (ranging from 0.1−1 × 106 IJ m−2); however, adequate IJ concentration for different EPN species in various soil types is poorly understood. For example, to

Gabriela Lankin, Giselle Vidal-Retes, Geraldine Allende, Carlos Castaneda-Alvarez, Ernesto San-Blas, Erwin Aballay

Journal of Nematology, Volume 52 , 1–11

Article | 27-August-2018

USE OF THE ELECTRODIALYSIS PROCESS FOR FLUORIDE ION AND SALT REMOVAL FROM MULTI-CONSTITUENT AQUEOUS SOLUTIONS

removal under the presence of organic substances. During experiments solutions containing fluorides (5, 10, 100 and 200 mg F- /dm3), mineral salt (0.5 g NaCl/dm3) and organic matter (5, 10 and 15 mg/dm3 of humic acids) were used. The research was conducted with the use of the PC Cell BED-1 System. The current density was equal to 1.72 mA/cm2. It has been shown that electrodialysis is an efficient technique of fluoride removal provided that the initial concentration of F- ions is not higher than 10 mg

Martyna GRZEGORZEK, Katarzyna MAJEWSKA-NOWAK

Architecture, Civil Engineering, Environment, Volume 9 , ISSUE 4, 107–113

research-article | 08-April-2020

EVALUATION OF THE ECOLOGICAL EFFECT OF BIODEGRADABLE WASTE PROCESSING IN A COMPREHENSIVE MUNICIPAL WASTE MANAGEMENT SYSTEM

Agnieszka GENEROWICZ

Architecture, Civil Engineering, Environment, Volume 13 , ISSUE 1, 121–128

research-article | 30-November-2020

Free-living nematode assemblages associated with maize residues and their ecological significance

decomposition of organic matter can be divided into two energy channels, including a faster bacterial facilitated channel and a slower fungal mediated channel (Ferris et al., 2001). These two channels run simultaneously, and they are dynamic features in the soil ecosystem (Ruess and Ferris, 2004). The prevalence of a specific decomposition channel in the food web is primarily determined by the type of soil and nutrient forms of organic plant residues (Ferris and Matute, 2003; Ingham et al., 1985). According

Samuel Maina, Hannah Karuri, Rossa Nyoike Ng’endo

Journal of Nematology, Volume 53 , 1–12

Research Article | 22-May-2019

GENETIC DIFFERENTIATION METHODS OF MICROORGANISMS IN THE SOIL – PLANT SYSTEM

Biodiversity is a key concept in finding important features of new microorganisms. Microorganisms play an important role in the soil ecosystem and participate, among others, in such processes as the maintenance of soil structure, humification, release of organic compounds, disposal of pollutants and transformation of organic matter. The maintenance of competent state of soil microbial communities, i.e. the appropriate microorganism count, activity and diversity, is a necessary condition for the

Małgorzata Łyszcz, Anna Gałązka

Postępy Mikrobiologii - Advancements of Microbiology, Volume 56 , ISSUE 3, 341–352

research-article | 30-November-2019

First record of native entomopathogenic nematodes from Montana agroecosystems

field. Overall, there were 150 composite samples from 30 fields. The collected samples were then placed in polyethylene bags to prevent water loss and kept in coolers (10°C) during transit to the laboratory. At each field site, data on sampling location, habitat (vegetation), longitude, latitude and elevation were recorded. For each sampling site, a subsample (ca 300 g) was analyzed for the physical and chemical characteristics: pH, organic matter, sand, silt, and clay content (Agvise laboratories

Ramandeep K. Sandhi, Ratnasri Pothula, Satyendra K. Pothula, Byron J. Adams, Gadi V.P. Reddy

Journal of Nematology, Volume 52 , 1–11

research-article | 21-October-2020

Optimizing for taxonomic coverage: a comparison of methods to recover mesofauna from soil

was used to extract 24 cores (dia. 10.5 cm  ×  23 cm depth; ~2000 ml volume). Two cores collected from each of 12 trees were processed by either FBF or SC. For FBF (Fig. 1A), the large 2-liter soil sample was mixed vigorously in a bucket with 30 liters of water to dissolve soil aggregates and allow mineral material to sediment. Immediately after mixing, the floating material was filtered through a 400-mesh sieve (38 microns) to obtain a bulk subsample of < 250cc containing organic matter and soil

Alexandros Dritsoulas, Larry W. Duncan

Journal of Nematology, Volume 52 , 1–9

Original Paper | 30-March-2017

Microbial Biomass and Enzymatic Activity of the Surface Microlayer and Subsurface Water in Two Dystrophic Lakes

Nutrient and organic matter concentration, microbial biomass and activities were studied at the surface microlayers (SML) and subsurface waters (SSW) in two small forest lakes of different water colour. The SML in polyhumic lake is more enriched with dissolved inorganic nitro­gen (0.141 mg l–1) than that of oligohumic lake (0.124 mg l–1), the former also contains higher levels of total nitrogen (2.66 mg l–1). Higher activities of lipase (Vmax 2290 nmol l–1 h–1

Iwona Kostrzewska-Szlakowska, Bartosz Kiersztyn

Polish Journal of Microbiology, Volume 66 , ISSUE 1, 75–84

research-article | 30-November-2017

EVALUATION OF QUALITY OF BOTTOM SEDIMENTS OF WATER RESERVOIR PORAJ BY APPLYING SEDIMENT QUALITY GUIDELINES AND SPIATAL ANALYSIS

spectrometer (IRIS ICP-OES Thermo) was used to determine the trace element content. (Rozpondek, Wancisiewicz, 2016). Total nitrogen were determined by Kjedahl method. Organic matter content were determined in accordance to PN-ISO 11465:1999. Toxicity effect of bottom sediments was determined by Alivibrio fischeri bacteria bioassay using Microtox M 500 Analyzer (in accordance to PN-ISO 11348-2:2008). Water extracts were prepared by mixing one volume of bottom sediments and four of distilled water [17

Katarzyna ROZPONDEK, Rafał ROZPONDEK

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 2, 141–147

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