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In model laboratory studies, the effect of veterinary antibiotic tylosin (concentrations of 1, 10, 100, 1000 mg/kg of soil) on the ecological state of dark brown soil under conditions of contamination with antibiotics and the degree of change of microbiological and biochemical parameters was studied. To assess the ecological state, the following biological indicators were studied: from microbiological - the total number of bacteria, the abundances of bacteria of the genus Azotobacter, from biochemical - the activi...

The waste resulted from tanning industry represent more than 55% from raw material (raw hide or skin), (Stefan D.S. et all, 2018). The new concept of European Union (EU) referring to ?circular economy? aims to maintain the value of products, materials and resources for as long as possible by returning them into the product cycle at the end of their use, while minimising the generation of waste. The circular model proposes closing the loop of products lifecycles by increasing recycling and reuse, the target for was...

The biomass of living microorganisms determined from the phospholipid content was studied in the exposed surface soils and soils of archaeological site in the dry-steppe zone of the Northern part of the Ergeninsky Upland (Russian Federation). The studied soils were represented by Kastanozems and Solonetzes. In the exposed surface soils living microbial biomass was in average 383±47 ?g C/g in the upper horizon and consistently decreased to 32% of this level down the profile. The proportion of living microbial bioma...

Potato is the world's fourth largest food crop, being cropped in 140 countries on an area of 19 million hectares, with a total annual production of 322 million tons and an average production of 40 tons per hectare. Perennial dicotyledonous weeds represent a real danger to potato culture because they cannot be controlled after the potato has emerged. Such weeds are: Canadian thistle (Cirsium arvense), field bindweed (Convolvulus arvensis ) and hoary cress (Cardaria draba). Herbicides that are applied upon the soil ...

The urban village Stepnoe has a size of 8 km2 and a population of about 12,340 inhabitants (according to data obtained in 2015). It was founded in 1767 and since 1967 it has been the administrative center of the Soviet district of Saratov region. We studied the distribution of mobile forms of heavy metals in the soils of the urban-type settlement Stepnoe, the territory of which can be attributed to a group of landscapes of small settlements, villages and localities. Soil sample points were distributed taking into ...

The dehumification of soils in the North Kazakhstan region is one of the most pressing problems due to the inadequate control of the cultivation technology of agricultural crops with the intensive occurrence of soil erosion. This paper considers the processes of dehumification of humus by the main types of soils in the North Kazakhstan region. The results of the research have demonstrated that humus in soil types has been decreased in 30 years from 1.78% to 30.2% since 1978 to 2018. The content of humus in 9 types...

The goal of work was the determination of heavy metals content (Zn, Cu, Co, Ni, Cr, Pb and Cd) in samples of legumes /bean/ from the chosen cultivation fields of south-western Slovakia and also to review soil hygiene of the monitored localities. Common bean varieties were collected from cultivation fields from locality Hurbanovo and villages Dolne Saliby, Risnovce and Teplicky. To exceed limits of heavy metals in the soil of all localities, established by Law No. 220/2004 and by threshold values proposed by Europe...

Using crop dusters at the current time constitutes an important and effective means to perform agricultural and forestry works, especially when is not possible to use terrestrial equipments, or when their use not ensure an increased productivity for optimum application of the works. So, in the case in which the excess moisture content in the soil makes it impossible to use terrestrial equipments, the use of crop dusters represents the only possibility of intervention, in order to ensure an effective fight against ...

The paper aims at inventorying soil resources in Secas Commune, Timis County, Romania, using modern means, namely the GIS method, but also to make a cartographic representation of these soil units using modern methods and means. [18,19] The main objectives envisaged are the development of knowledge on the natural environment, the creation of a ?spatial? pedological database, the spatial representation of soils, the qualitative representation of soils by GIS, the inventory of soils and the identification of their s...

In model laboratory studies of dynamics (3, 30, and 90 days), the effect of veterinary antibiotic tylosin on the biochemical properties of brown forest soil was studied at concentrations of 1, 10, 100, 1000 mg/kg of soil. To study the biochemical properties of the soil, the following indicators were selected: the activity of enzymes of the class of oxidoreductases (catalase, dehydrogenases), hydrolases (invertase, phosphatase), and acidity of the soil (pH). It has been established that contamination of brown fores...

Among various pollutants, heavy metals with persistence, non-biodegradation, toxicity and bioavailability pose a major threat to all components of the environment. In soil of vineyard area near Nitra (Slovakia) were analysed four heavy metals (Cd, Cu, Pb and Zn) in order to assess soil contamination. Contamination factor (CF), degree of contamination (DC) and pollution load index (PLI) were used in order to determine the level of environmental contamination of the study area. The average values of CF in soils decr...

The research was carried out in Tata Valley watershed, Dambovita region, Romania, which is a tributary of the Ialomita river. The objectives of this study were to estimate the annual soil loss by applying remote sensing data and the main data for the Tata Valley watershed and obtain a spatial representation of the results using GIS techniques. The method used to determine the soil erosivity and total eroded soil quantity in Tata Valley watershed, is the RUSLE + GIS technique, adapted to the specific conditions of ...

The Middle Povazie region belongs to 10 regions of the Slovakia with the most disturbed environment. Important industrial enterprises such as rubber plant, cement company and glassworks are the determining sources of the environment contamination in this region. The aim of this study was to assess the degree of potential Cd, Pb, Ni, Zn, Cu, Cr and Co contamination of agricultural land in three localities near to emission sources. The samples of soil were collected from two dephts: 0 ? 0.10 m (A horizon) and 0.20 ?...

The garlic crop is made by planting bulbs and they can easily pass through many herbicides that are applied to the soil due to the vigor of the garlic emerging seedlings. However, some weeds, especially those with large seeds, can also pass through the superficial layer of herbicide so that they can cause great damage to the crop. These weed species, such as cocklebur (Xanthium sp.) or velvet leaf (Abutilon theophrasti) can be controlled in postemergence with Goal 4F herbicide. Other herbicides, as Lontrel (clopyr...

Soil contamination is one of the most serious environmental problems. The aim of this study was to assess the level of contamination of soil by hazardous metals in 5 regions of Slovakia. Overall 152 samples (soil + plant) were collected from 76 sampling sites in investigated regions. In all samples contents of Zn, Cu, Ni, Pb and Cd were determined. In soil samples the total contents of risky elements in extracts by aqua regia as well as contents of bioavailable forms in extracts by NH4NO3 (c=1 mol/L) were determin...

Soil degradation, characterized by decline in quality, decreases ecosystem goods and services, and is a major constraint for further agricultural, including food, production. In addition, soil degradation caused by human activities, especially agriculture, contributes to climate change. The need to ensure a sustainable use of soils is outlined by the European Union (EU) Soil Thematic Strategy, as well as related legislation. This requires the prevention to further soil degradation and the preservation of its funct...

Both the United Kingdom as well as Czech Republic have seen increased impacts due to flooding in recent years. Rural flooding is due to intense and heavy rainfall-runoff events. Runoff brings with it soil erosion and sediment transport, so called ?muddy floods,? which causes serious onsite and offsite damages in the landscape or even in settlement area and infrastructure. Long-term observation and measurement is crucial step for understanding of complexity of processes involved in the generation of muddy floods an...

Environmental pollution by manganese is a significant problem for the Imereti region. The source of pollution is derived from manganese extraction quarry and ore processing plant. The purpose of the study was to investigate the concentration of manganese and other heavy metals in the soil, air and water. Samples were taken from the industrial area, and the chemical elements were identified in them using ICP-MS. The results showed that the concentration of manganese and some other metals exceed to the permissible l...

A great number of agricultural structures such as irrigation and drainage systems and anti-erosion facilities like bulk shafts, terraces, grassed run-off holding collectors, barrages, wind protection belts, etc. were put into operation during the last century in Bulgaria. The Agrarian Reform of the 1990-s posed unfavorable conditions for preservation and use of this valuable inheritance. Currently, small-sized, fragmented and scattered land use causes deterioration of land quality and infrastructure. The regulator...

The aim of the paper is to investigate the correlations between the parameters and mineralogy of agricultural soils contaminated by hazardous elements originated from the metallurgical industry. The mineralogical constituents of soil have a major influence on soil fertility and production capacity, as well as on migration and assimilation in various proportions of the elements both with nutritional role for plants and potential toxic ones. The importance of the study originates from the necessity of knowing the so...

This article presents results of researches of genesis and physical and chemical properties of humic acids of peat stratigraphic rigging of the Ob-Irtysh interfluve, selected in the area of The Mukhrino Field Station of the UNESCO chair of Yugra State University. The coordinates of the selection: 60.89535 N?68.639033 E. Ash content of peat does not exceed 12%. The effect of botanical composition of the original plants of the peat-forming plants of peat type on the construction of the macromolecules of humic acids ...

The influence of oil pollution on the set of indicators such as barley productivity, availability of macro- and microelements and also enzyme activity of the soils was profoundly investigated. The researched objects were the arable horizons of both leached chernozem and soddy podzolic soils, containing different amount of oil (2000 mg/kg, 3000 mg/kg). Besides, the ones without contamination were revealed. The higher is the dose of pollution, the higher is the average pH value. According to the studies conducted, o...

Plants are the main recipient of heavy metals found in soil, being at the same time a source of these metals for plants, animals and human organisms. The search for methods limiting the availability of heavy metals remains valid. Many years of research are being carried out at the Warsaw University of Technology, regarding limiting the availability of heavy metals to the trophic chain by introducing into the soil organic matter. The aim of the study was to analyse the content of heavy metals (Zn, Pb, Cd) in radish...

The positive effects of biochar on soil structure were demonstrated in many studies. Substantially less, even information on the interrelationships between Al, Fe forms and soil structure induced by biochar application as well as its re-application is still absent. Therefore the aims of this study were: (1.) to evaluate the changes in soil structure parameters affected by biochar application and its re-application in different rates (0, 10 and 20 t ha-1), (2.) to evaluate the effect of biochar application and re-a...