Gotowe bibliografie tematyczne / Soil biological activity

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  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji
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Gotowa bibliografia na temat „Soil biological activity”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 25 lipca 2025

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Artykuły w czasopismach na temat "Soil biological activity"

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Formánek, P., and V. Vránová. "The effect of spruce stand thinning on biological activity in soil." Journal of Forest Science 49, No. 11 (2012): 523–30. http://dx.doi.org/10.17221/4795-jfs.

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The effect of thinning of young spruce stands by 500 trees/ha on biological activity in the soil profile was studied in the mountainous area of the Moravian-Silesian Beskids. The biological activity of soil was determined under optimal laboratory conditions by tests of soil respiration, catalase activity and intensity of cellulose decomposition. No statistically significant differences were found between the individual biological tests when the two experimental stands were compared (P-level 0.05). All biological activities within each stand were correlated, and significant correlations were fo
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Šmejkalová, M., O. Mikanová, and L. Borůvka. "Effects of heavy metal concentrations on biological activity of soil micro-organisms." Plant, Soil and Environment 49, No. 7 (2011): 321–26. http://dx.doi.org/10.17221/4131-pse.

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The distribution of cadmium, lead and zinc in exchangeable, organic, and 2M HNO3-extractable fractions as well as the effect of heavy metal concentrations on soil microflora was investigated. Six sampling transects were chosen in theLitavkaRiveralluvium in 1999–2001. Concentrations of all metals increased with decreasing distance from the source of contamination. The concentrations of Cd and Zn in exchangeable fraction were higher than in organically bound fraction, a reverse trend was found in Pb speciation. All measured parameters of soil microbial activity were affected b
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Syshchykov, D. V., I. V. Agurova, and O. V. Syshchykova. "Biological activity of edaphotopes of anthropogenic transformed ecosystems." Plant Biology and Horticulture: theory, innovation, no. 154 (October 21, 2020): 141–52. http://dx.doi.org/10.36305/2712-7788-2020-1-154-141-152.

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As a result of the carried out studies of biological activity of edaphotopes of anthropogenic transformed ecosystems, it was found that the largest number of microorganisms and streptomycetes it was characteristic for common chernozem. For the soil horizons of primitive undeveloped fragmented soils, was recorded the lowest percentage of the microorganisms number (on average 4-5% relative to the control). The number of streptomycetes in both intrazonal and soils of anthropogenic transformed soils and zonal soils varies in horizons. However, we have noted that in intrazonal and anthropogenic tra
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Remeš, J., and R. Šíša. "Biological activity of anthropogenic soils after spoil-bank forest reclamation." Journal of Forest Science 53, No. 7 (2008): 299–307. http://dx.doi.org/10.17221/2075-jfs.

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The paper presents the results of relatively long-term research focused on spoil bank revitalization pro-cesses in the North Bohemian Brown Coal Basin after the first three years of observations. The biological activity of soil (namely catalase and phosphatase activity), indicators of basal and potential soil respiration, ammonification and growth, development and nutrition status of forest plantations were selected as indicators of this revitalization process. These parameters were determined in five localities of different age of reclamation where different technological approaches and tree
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Kurmanbayev, A. A., K. K. Mussayeva, and Sh G. Yermek. "Soil biological activity and its indicators in soil quality monitoring: mini - review." Pochvovedenie i agrokhimiya, no. 3 (October 15, 2023): 99–108. http://dx.doi.org/10.51886/1999-740x_2023_3_99.

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The presented mini-review shows a systematic picture of the biological activity of soils in its connection with physical and chemical properties, and, ultimately, with soil fertility and crop yields. The biological activity of soils is due to the lifetime activity of soil biota, mainly microbiota and root systems of plants, as well as the action of soil enzymes. It has been shown that individual BAP tests can be used as simple and accessible biological fertility indices BFI.
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Růžková, M., L. Růžek, and K. Voříšek. "Soil biological activity of mulching and cut/harvested land set aside." Plant, Soil and Environment 54, No. 5 (2008): 204–11. http://dx.doi.org/10.17221/396-pse.

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Formerly arable luvic chernozem set aside for ten years (1997–2006) with different herbaceous cover (grass, legumes and their mixtures) and agronomical practices (mulching and cut/harvesting) was studied. The experimental plot was maintained as black, spontaneous and controlled fallows from 1997 until July 2003 (BD period). In July 2003 the plots were desiccated by glyphosate herbicide and were run as a black fallow until August 2004 (AD). The last period (AG) was characterized by monoculture of Italian ryegrass cut/harvested twice a year until October 2006. The experimental soils were charact
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Błońska, Ewa, and Jarosław Lasota. "Biological and biochemical properties in evaluation of forest soil quality." Folia Forestalia, Series A - Forestry 56(1) (March 1, 2014): 23–29. https://doi.org/10.2478/ffp-2014-0003.

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The aim of this study was to assess the possibility of using biological and biochemical parameters in the evaluation of forest soil quality and changes caused by land use. The study attempted to determine a relationship between the enzymatic activity of soil, the number of earthworms and soil physico-chemical properties. The study was carried out in central Poland in adjoining Forest Districts (Przedbórz and Smardzewice). In soil samples taken from 12 research plots, basic physico-chemical properties, enzyme activity (dehydrogenase, urease) and density and biomass of earthworms were exa
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Franzluebbers, Alan J. "Should Soil Testing Services Measure Soil Biological Activity?" Agricultural & Environmental Letters 1, no. 1 (2016): 150009. http://dx.doi.org/10.2134/ael2015.11.0009.

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Startsev, N. A., D. H. McNabb, and A. D. Startsev. "Soil biological activity in recent clearcuts in west-central Alberta." Canadian Journal of Soil Science 78, no. 1 (1998): 69–76. http://dx.doi.org/10.4141/s97-028.

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Soil biota response to changes in the soil physical environment following forest harvesting is relatively unknown in boreal forests. Soil biological activity was measured at four sites with Luvisolic soil following clear-cut forest harvesting. Aerobic respiration rate and cellulose decomposition in flooded soils were measured on soil samples collected from treatment plots subjected to tree removal only and tree removal associated with three levels of skidding activity immediately after clear-cut harvesting and after 1 and 2 yr. More than half of variation in respiration and cellulose decomposi
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Olimaxon, Ergasheva, Paxradinova Nargiza, and Gafurova Lazizakhon. "CHEMICAL AND BIOLOGICAL PROPERTIES OF IRRIGATED SIEROZEM-MEADOW SOILS." Multidisciplinary Journal of Science and Technology 4, no. 1 (2024): 86–91. https://doi.org/10.5281/zenodo.10511711.

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The agrochemical, chemical, agrophysical, and biological activity of the irrigated sierozem-meadow soils in the conditions of the Khavas district of the Syrdarya region was comprehensively studied. Soils are of varying degrees of salinity, and their content of ammonifiers, spore formers, actinomycetes and nitrogen fixers has been determined according to the salinity level and types. In the conditions of irrigated sierozem-meadow soils, changes in biological activity were observed in winter wheat and repeated mash crop fields according to options, and the number of soil ammonifiers, nitrogen fi
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Rozprawy doktorskie na temat "Soil biological activity"

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Franey-Gardiner, Mercedes. "The dynamics and biological activity of ALS-inhibiting herbicides in soil." Thesis, Cranfield University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426107.

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Berglund, Hanna. "Biological Soil Invertebrate Activity in a Tropical Rainforest : A comparison of soil invertebrate activity in two tropical rain forests in Borneo." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-411109.

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Logging of tropical forests is increasing worldwide. Logging alters the forest conditions such as temperature, soil water content and litter input into the soil. This study explored how soil invertebrate activity in Borneo differs between pristine forests and two secondary forests, with 10 and 40 years of recovery time since the last logging. To measure the soil fauna feeding activity, the bait lamina stick method was applied. The study was conducted in Sabah, Malaysian Borneo, during April and May 2019. 33 forest plots were examined with ten lamina sticks placed in each of the three replicas
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Choosai, Chutinan. "Biological activity in paddy fields : the role of soil engineers in ecosystem functioning." Paris 6, 2010. http://www.theses.fr/2010PA066156.

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Les ingénieurs du sol modifient les propriétés physicochimiques des sols à travares la création de structures biogéniques. Ce travail vise à déterminer le rôle respectif de deux types de structures : les buttes termitiques et les turricules de vers de terre. Les buttestermitiques agissent comme des sites de hute activité boilogique. Ils constituent des refuages pour la macrofaune. Ces buttes sont enrichies en C,K,P et argiles par rapport aux sols environnants. Les vers de terre en accumulant leurs turricules au pied du riz favorise l'hétérogénèïté spatiale. Ces structures biogéniques constitue
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Park, Kee Choon. "Enzymatic activity, microbial diversity, and weed seed banks in soils receiving different organic amendments and the biological fertilizer EM(tm) /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3164535.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2004.<br>(tm) after EM in title is for Trademark symbol. Typescript. Vita. Includes bibliographical references (leaves 120-142). Also available on the Internet.
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Kurek, Danielle K. "Effects of prescribed burning on soil physical, biological, and chemical properties of the Oak Openings region of Northwest Ohio." Toledo, Ohio : University of Toledo, 2010. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=toledo1271430752.

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Thesis (M.S.)--University of Toledo, 2010.<br>Typescript. "Submitted to the Graduate Faculty as partial fulfillment of the requirements for the Masters of Science Degree in Biology." "A thesis entitled"--at head of title. Title from title page of PDF document. Bibliography: p. 58-63.
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D'AMICO, MICHELE EUGENIO. "Soil ecology and pedogenesis on ophiolitic materials in the western Alps (Mont Avic Natural Park, North-western Italy): soil properties and their relationships with substrate, vegetation and biological activity." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2009. http://hdl.handle.net/10281/10401.

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Soils formed from ultramafic rocks are normally by pH values close to neutrality, a high base status and are usually rich in Mg, Fe and heavy metals. The low Ca/Mg ratio and the high heavy metal content could cause toxic effects in the biological communities. Plant communities, in particular, are usually different from nearby areas with different substrates and rich in endemisms and adapted species and subspecies. Despite their great environmental and ecological interest, pedological and ecological properties of mountain or boreal soils developed on similar substrates have seldom been studied
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Oppong, Francis Kofi. "Studies on the biological activity of a novel herbicide (Triasulfuron) including studies of mobility and persistence in soil." Thesis, Bangor University, 1988. https://research.bangor.ac.uk/portal/en/theses/studies-of-the-biological-activity-of-a-novel-herbicide-triasulfuron-including-studies-of-mobility-and-persistence-in-soils(20ca442c-519c-4e3a-a11e-9e0b162ff25e).html.

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Triasulfuron (3-(6-methoxy-4-methyl-1,3,5-triazin-2-yl)-1-[2-(2- chloroethoxy)-phenylsulfonyl)-urea} is a new pre- and post-emergence herbicide developed for the control of broad-leaved_'Teeds and some grasses in small grain cereals at rates of 10-20gha . Oilseed rape, pea, broad bean, Senecio vulgaris, Veronica persica, Lolium renne, Poa annua, Poa trivialis and prates were severely a ed 5y pre-emergence and post-emergence applications of triasulfuron but wheat and barley were much more resistant. The development of injury symptoms was generally slow and was characterized by an initial growth
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Shi, Shengjing. "Influence of root exudates on soil microbial diversity and activity." Lincoln University, 2009. http://hdl.handle.net/10182/1549.

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Interactions between plant roots and soil microorganisms in the rhizosphere are critical for plant growth. However, understanding of precisely how root exudates influence the diversity and activity of rhizosphere microorganisms is limited. The main objective of this study was to investigate the effect of radiata pine (Pinus radiata) root exudates on rhizosphere soil microbial communities, with an emphasis on the role of low molecular weight organic anions. The study involved the development and validation of new methods for investigating rhizosphere processes in a purpose-built facility. This
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Uhrová, Anna. "Remediační potenciál huminových kyselin." Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-234455.

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V předložené práci byly testovány modifikované lignitické huminové kyseliny za účelem zjištění jejich schopnosti remediace zemědělské půdy. Před samotnou extrakcí jednotlivých huminových kyselin byl lignit modifikován jednou ze série deseti organických kyselin. Cílem modifikace byla simulace procesů vyskytujících se v rizosféře, tj. procesů, kdy malé organické molekuly způsobují změny ve struktuře půdní organické hmoty, během nichž dochází k produkci biologicky aktivních agregátů/molekul podílejících se na růstu rostlin. Prvním krokem této práce bylo zkoumání fyzikálně chemických vlastností vy
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Short, Nicolyn. "Implications of green manure amendments on soil seed bank dynamics." University of Western Australia. School of Earth and Geographical Sciences, 2006. http://theses.library.uwa.edu.au/adt-WU2006.0022.

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[Truncated abstract] Weeds are a major limitation to agricultural and horticultural production and the main method of control is the use of herbicides. In addition to the resulting chemical pollution of the environment, the wide spread and continues use of herbicides have resulted in many weeds developing resistance to commonly used herbicides. This study investigated the potential of using green manures as a cultural method of control of weed invasion in agricultural fields. To understand the general mechanisms involved in the suppression of seed germination in green manure amended soils, see
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Książki na temat "Soil biological activity"

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D, Vaughan, and Malcolm R. E, eds. Soil organic matter and biological activity. M. Nijhoff/W. Junk, 1985.

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Vaughan, D., and R. E. Malcolm, eds. Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1.

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Wüthrich, Christoph. Die biologische Aktivität arktischer Böden mit spezieller Berücksichtigung ornithogen eutrophierter Gebiete, Spitzbergen und Finnmark =: The biological activity of arctic soils with special consideration of ornithogenic soils, Spitzbergen and Finmark. Geographisches Institut der Universität Basel, 1994.

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Vaughan, D., and R. E. Malcolm. Soil Organic Matter and Biological Activity. Springer, 2014.

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Vaughan, D., and R. E. Malcolm. Soil Organic Matter and Biological Activity. Springer, 2012.

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Vaughan, D., and R. E. Malcolm. Soil Organic Matter and Biological Activity. Springer, 2013.

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Hope, Sharon Margaret. Biologic activity in two western Oregon Douglas-fir stands: A research link to management. 1995.

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Wilshire, Howard G., Richard W. Hazlett, and Jane E. Nielson. The American West at Risk. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780195142051.001.0001.

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The American West at Risk summarizes the dominant human-generated environmental challenges in the 11 contiguous arid western United States - America's legendary, even mythical, frontier. When discovered by European explorers and later settlers, the west boasted rich soils, bountiful fisheries, immense, dense forests, sparkling streams, untapped ore deposits, and oil bonanzas. It now faces depletion of many of these resources, and potentially serious threats to its few "renewable" resources. The importance of this story is that preserving lands has a central role for protecting air and water qu
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Części książek na temat "Soil biological activity"

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Tate, K. R. "Soil Phosphorus." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_10.

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Ladd, J. N. "Soil Enzymes." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_6.

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Sparling, G. P. "The Soil Biomass." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_7.

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Hartley, R. D., and D. C. Whitehead. "Phenolic Acids in Soils and their Influence on Plant Growth and Soil Microbial Processes." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_4.

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Cheshire, M. V. "Carbohydrates in Relation to Soil Fertility." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_8.

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Vaughan, D., and B. G. Ord. "Introduction Soil Organic Matter — A Perspective on its Nature, Extraction, Turnover and Role in Soil Fertility." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_1.

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Anderson, H. A., and D. Vaughan. "Soil Nitrogen: Its Extraction, Distribution and Dynamics." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_9.

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Scott, N. M. "Sulphur in Soils and Plants." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_11.

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Linehan, D. J. "Organic Matter and Trace Metals in Soils." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_12.

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Parsons, J. W. "Organic Farming." In Soil Organic Matter and Biological Activity. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5105-1_13.

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Streszczenia konferencji na temat "Soil biological activity"

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Kubasova, E., and N. Shuliko. "THE ACTIVITY OF MICROORGANISMS IN THE RHIZOSPHERE OF GRAIN CROPS UNDER THE APPLICATION OF SEED BACTERIZATION." In «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE». Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS, 2024. http://dx.doi.org/10.52686/9785605087878_307.

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In the field experiment, the analysis of the effect of biologics "Mizorin" and "Flavobacterin" on the number of microorganisms of the oligonitrophil group in the dynamics of vegetation of grain crops was carried out, and the dependence of crop yields on the activity of soil microorganisms was estimated. The study was carried out in 2023 in the fields of the Omsk ASC. The positive effect of the use of biological preparations on biological activity has been established, in particular, an increase in the number of microorganisms of the oligonitrophil group up to 55% in the rhizosphere of durum wh
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Shuliko, N. "ENZYMATIC ACTIVITY OF THE RHIZOSPHERE OF GRAIN CROPS UNDER THE CONDITIONS OF THE SOUTHERN FOREST-STEPPE OF WESTERN SIBERIA." In «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE». Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS, 2024. http://dx.doi.org/10.52686/9785605087878_364.

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The research was carried out on spring soft wheat in field experiments of the Omsk Agricultural Research Center in the southern forest-steppe of Western Siberia in order to determine the effect of the use of biologics of associative diazotrophs on the biological properties of the rhizosphere of spring soft wheat. It was found that the basal microflora of soft wheat reacted ambiguously to inoculation with biological preparations and depended both on the genotypic characteristics of the varieties and on the preparation used. The activity of hydrolytic enzymes in most variants of the experiment t
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Rusanov, A. M., K. R. Muhamadeeva, N. A. Terekhova, and D. G. Polyakov. "INFLUENCE OF HEAVY METALS ON BIOLOGICAL ACTIVITY AND SOIL HUMUS." In Международная научно-практическая конференция почвоведов, агрохимиков и земледелов, посвященная 90-летию почвоведения на Урале "Почвы Урала и Поволжья: экология и плодородие". Башкирский государственный аграрный университет, 2021. http://dx.doi.org/10.31563/3-6-6-2021-170-175.

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Belousov, A., and E. Belousova. "THE INFLUENCE OF TILLAGE METHODS ON THE BIOLOGICAL ACTIVITY OF AGROCHERNOZEMS OF THE KRASNOYARSK FOREST-STEPPE." In «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE». Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS, 2024. http://dx.doi.org/10.52686/9785605087878_51.

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The indicators of the biological activity of agrochernozem under the plowless methods of tillage are considered. Weak biogenicity of the studied soils was revealed. The carbon content of microbial biomass is a more sensitive indicator of ongoing changes. The enzymatic activity is characterized by a low level. The most optimal effect of the studied mold boardless techniques is a subsurface tillage method.
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Darwesh, Dalshad, and Amel Ibrahim. "Assessment the Impact of Oil Refinery Residues on Soil Enzymatic Activity." In 4th International Scientific Conference of Cihan University-Erbil on Biological Sciences. Cihan University-Erbil, 2017. http://dx.doi.org/10.24086/bios17.21.

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Kiseleva, A., and N. Shuliko. "BIOLOGICAL ACTIVITY OF THE RHIZOSPHERE OF GRAIN CROPS IN THE CONDITIONS OF THE SOUTHERN FOREST-STEPPE OF WESTERN SIBERIA." In «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE». Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS, 2024. http://dx.doi.org/10.52686/9785605087878_296.

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Studies have established an ambiguous reaction of soft spring wheat varieties to the use of biological preparations. Pre-sowing inoculation of seeds contributed to an increase in the total number of microorganisms in the rhizosphere of Omskaya 44 wheat with the use of Flavobacterin. The greatest experimental positive effect of inoculation of wheat seeds with Mizorin was recorded for the varieties Omskaya 42 and Tarskaya 12 (+ 0,28 and 0,17 t/ha, respectively), Flavobacterin – for the variety Omskaya 42 (+ 0,47 t/ha).
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Toplaghaltsyan, Anna, Zhaneta Karapetyan, Susanna Keleshyan, et al. "Enzymatic activity of nitrogen-fixing soil bacteria." In 5th International Scientific Conference on Microbial Biotechnology. Institute of Microbiology and Biotechnology, Republic of Moldova, 2022. http://dx.doi.org/10.52757/imb22.37.

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Soil is a medium for more than 100 enzymes. During soil deterioration the change of enzymes occurs much sooner than of other parameters in the soil so they are considered the best indicators of soil health. These enzymes play a vital role in supporting soil ecology and health by direct agents of the biological catabolism of soil organic and mineral components. Еnzymatic activities in the soil are mainly of microbial origin. In a number of potential bacterial enzymes that play an important role in maintaining soil health, some of the important ones are protease, lipase, cellulase, amylase and u
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Dumitru, Sorina. "THE INFLUENCE OF BIOLOGICAL ACTIVITY ON SOIL STRUCTURE BY THE ORGANIC MATTER BIOTURBATION." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017/32/s13.078.

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Semancova, Petra. "THE BIOLOGICAL ACTIVITY OF SOIL ECOSYSTEMS IN THE LOCALITY OF DRY POLDER BESA." In 14th SGEM GeoConference on WATER RESOURCES. FOREST, MARINE AND OCEAN ECOSYSTEMS. Stef92 Technology, 2014. http://dx.doi.org/10.5593/sgem2014/b32/s13.035.

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Popolzuhina, N., P. Popolzuhin, and O. Hamova. "THE EFFECT OF ASSOCIATIVE DIAZOTROPHS ON THE MICROBIOLOGICAL ACTIVITY OF SOIL DURING THE CULTIVATION OF GRAIN AND LEGUMINOUS CROPS." In «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE». Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS, 2024. http://dx.doi.org/10.52686/9785605087878_214.

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Based on the research of many years, it was established that the use of pre-sowing inoculation of seeds of cereals and legumes with biological preperations has a positive effect on the microbiological activity of the soil in the rhizosphere of the crops, increasing their quantity, the ratio of individual groups, the direction of processes, contributing at the same time to an increase in productivity. Determined that, the effect of the preparations is characterized by varietal specificity, depends on the prevailing hydrothermal conditions, the nutritional regime of the soil, and is determined b
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Raporty organizacyjne na temat "Soil biological activity"

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Samish, Michael, K. M. Kocan, and Itamar Glazer. Entomopathogenic Nematodes as Biological Control Agents of Ticks. United States Department of Agriculture, 1992. http://dx.doi.org/10.32747/1992.7568104.bard.

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This research project was aimed to create a basis for the use of entomopathogenic nematodes (Steinernematidae an Heterorhabditidae) for biological control of ticks. The specific objectives were to determinate: 1) Nematode virulence to various. 2) Host-parasite interactions of nametodes and ticks. 3) Effect of environmental factors of tick habitats on nematode activity. 4) To test nematodes (anti tick activity) in defined field trials. Throughout the project 12 nematode strains from five species were tested in laboratory assays against all developmental stages of eight tick species. All tick sp
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Or, Dani, Shmulik Friedman, and Jeanette Norton. Physical processes affecting microbial habitats and activity in unsaturated agricultural soils. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7587239.bard.

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experimental methods for quantifying effects of water content and other dynamic environmental factors on bacterial growth in partially-saturated soils. Towards this end we reviewed critically the relevant scientific literature and performed theoretical and experimental studies of bacterial growth and activity in modeled, idealized and real unsaturated soils. The natural wetting-drying cycles common to agricultural soils affect water content and liquid organization resulting in fragmentation of aquatic habitats and limit hydraulic connections. Consequently, substrate diffusion pathways to soil
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Shenker, Moshe, Paul R. Bloom, Abraham Shaviv, et al. Fate of Phosphorus Originated from Treated Wastewater and Biosolids in Soils: Speciation, Transport, and Accumulation. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697103.bard.

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Beneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levelsBeneficial use of reclaimed wastewater (RW) and biosolids (BS) in soils is accompanied by large input of sewage-originated P. Prolonged application may result in P accumulation up to levels that impair plant nutrition, increase P loss, and promote eutrophication in downstream waters. This study aims to shed light on the RW- and BS-P forms in soils and to follow the processes that determine P reactivity, solu
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Chen, Yona, Jeffrey Buyer, and Yitzhak Hadar. Microbial Activity in the Rhizosphere in Relation to the Iron Nutrition of Plants. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7613020.bard.

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Iron is the fourth most abundant element in the soil, but since it forms insoluble hydroxides at neutral and basic pH, it often falls short of meeting the basic requirements of plants and microorganisms. Most aerobic and facultative aerobic microorganisms possess a high-affinity Fe transport system in which siderophores are excreted and the consequent Fe complex is taken up via a cognate specific receptor and a transport pathway. The role of the siderophore in Fe uptake by plants and microorganisms was the focus of this study. In this research Rhizopus arrhizus was found to produce a novel sid
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Cytryn, Eddie, Mark R. Liles, and Omer Frenkel. Mining multidrug-resistant desert soil bacteria for biocontrol activity and biologically-active compounds. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7598174.bard.

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Control of agro-associated pathogens is becoming increasingly difficult due to increased resistance and mounting restrictions on chemical pesticides and antibiotics. Likewise, in veterinary and human environments, there is increasing resistance of pathogens to currently available antibiotics requiring discovery of novel antibiotic compounds. These drawbacks necessitate discovery and application of microorganisms that can be used as biocontrol agents (BCAs) and the isolation of novel biologically-active compounds. This highly-synergistic one year project implemented an innovative pipeline aimed
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Thomashow, Linda, Leonid Chernin, Ilan Chet, David M. Weller, and Dmitri Mavrodi. Genetically Engineered Microbial Agents for Biocontrol of Plant Fungal Diseases. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7696521.bard.

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The objectives of the project were: a) to construct the site-specific integrative expression cassettes carrying: (i) the chiA gene for a 58-kDa endochitinase, (ii) the pyrrolnitrin biosynthesis operon, and (iii) the acdS gene encoding ACC deaminase; b) to employ these constructs to engineer stable recombinant strains with an expanded repertoire of beneficial activities; c) to evaluate the rhizosphere competence and antifungal activity of the WT and modified strains against pathogenic fungi under laboratory and greenhouse conditions; and d) to monitor the persistence and impact of the introduce
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McFarlane, Aaron, Nia Hurst, Carina Jung, and Charles Theiling. Evaluating soil conditions to inform Upper Mississippi River floodplain restoration projects. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48451.

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The US Army Corps of Engineers (USACE) has designed and constructed thousands of acres of ecosystem restoration features within the Upper Mississippi River System. Many of these projects incorporate island construction to restore geomorphic diversity and habitat, including floodplain forests. Soils are the foundation of the ecological function and successful establishment of floodplain forests as they are the basis through which plants obtain water and nutrients and provide critical ecosystem services. To improve floodplain forest island restoration outcomes, three natural and four recently (&
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Kapulnik, Yoram, and Donald A. Phillips. Isoflavonoid Regulation of Root Bacteria. United States Department of Agriculture, 1996. http://dx.doi.org/10.32747/1996.7570561.bard.

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The overall objective of this project was to develop a conceptual framework for enhancing root colonization by beneficial bacteria. To accomplish this aim we tested the hypothesis that production and excretion of the plant phytoalexin medicarpin can be used for creation of a special niche along the legume roots, where beneficial microorganism, such as rhizobium, will have a selective advantage. On the Israeli side it was shown that higher medicarpin levels are exuded following the application of Rhizobium meliloti to the rhizosphere but the specific biochemical pathway governing medicarpin pro
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Dammeyer, Nathan, Jarrett Wansley, and Jeb Wofford. Status and trends of water quality in the Mid-Atlantic Inventory and Monitoring Network, water years 2011?2023. National Park Service, 2024. http://dx.doi.org/10.36967/2303698.

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The Mid-Atlantic Inventory and Monitoring Network (MIDN) monitors water quality due to the ecological, management, and policy significance of aquatic resources in MIDN parks. Specifically, water quality is monitored due to the direct effect it has on aquatic communities, the National Park Service?s responsibilities for the protection and improvement of water quality, and the clear connection to state-based regulatory programs. Here we provide a summary report on the status and trends in ?core? water quality parameters as defined by the National Park Service (i.e., pH, dissolved oxygen, water t
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