EJSSEurasian Journal of Soil ScienceEurasian J Soil Sci2147 - 4249Federation of Eurasian Soil Science Societieshttp://ejss.fesss.org/10.18393/ejss.124477110.18393/ejss.1244771Spatial distribution of soil organic carbon content in the agricultural land uses: Case study at the territory of the Rahoveci municipality, KosovoBetim Bresilla betimbresilla@hotmail.comFlorent Demelezi Tamás Szegi Gazmend Gjinovci Bekri Xhemali Valmira Havolli Sherif Mehmeti 123205-2142022-11-232023-01-232023-01-312023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies Due to the soil formation factors and different geographic areas of Dukagjini Plain, particularly in Rahovec municipality, the variation of soil organic carbon is high. Soil organic carbon (SOC) has a crucial role in the determination of the physical, chemical and biological behaviour of the soil. The most common land use types of this area are vineyards, table grapes, horticulture such as peppers and cabbage, and arable lands such as maize, winter wheat, alfalfa, and meadows. Considering the lack of soil information data in Kosovo, it is necessary to have soil information about this territory. The main objectives of the present study are, therefore: i) to investigate and determine the concentration of the soil organic matter (SOM), SOC, nitrogen (N) and soil pH-H2O, using laboratory analysis, and ii) to show the spatial distribution of SOC, SOM, N and pH using the Kriging and inverse weighting interpolation methods. Spatial variability of soil chemical parameters such as SOM, SOC, N, and pH are important to be interpolated to view the changeable soil properties by kriging and inverse distance weighting method and to generate the continuous sample for site-specific management. Disturbed soil samples were collected from the top soil 0-30 cm and 30-60 cm depth, to determine selected soil chemical parameters, during June-July 2019. A large number of soil samples were collected, 2087 in the first horizon and 2065 in the second. The average of SOC of the first horizon was 0.91%, which variates from 0.07 to 4.06%, while in the second horizon was 0.0 to 2.84%, the average content of N in the first horizon was 0.09%, which variate from 0.01 to 0.60%, while in the second horizon was 0.0 to 0.39%, meanwhile, the average of soil pH-H2O in the first horizon was 7.67, which variates from 4.25 to 9.35, while in the second horizon was 7.79, which variate from 3.25 to 9.30.Soil organic carbon, agriculture land, spatial interpolation, kriging, inverse weighting.http://ejss.fesss.org/10.18393/ejss.126084310.18393/ejss.1260843Impact of different organic fertilizers on soil available nutrient contents, potato yield, tuber nitrate contents Nurbol Budanov Nurbol26.75@mail.ruТemirzhan Aitbayev Laura Buribayeva Asset Zhylkibayev Zhainagul Yertayeva 123215-2212022-11-282023-02-252023-03-062023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies In this study, field experiment was conducted to assess the effect of different organic fertilizer and mineral fertilizer on mineral and different organic fertilizer treatments effect on available N, P, K contents, the yield of potato (Solanum tubevosum L.), cultivar Astana, nitrate contents of tuber under dark chestnut soil conditions in southeast of Kazakhstan during the spring and summer of 2022. The experiment was carried out in the field and laid out as complete randomized block design with four replicates. Thirteen treatments that are, control without fertilizer treatment, mineral fertilizer with recommended dose (N150P90K120) and eleven different organic fertilizers treatment were used. The results showed that available nutrient (N, P and K) contents of the post-harvest soil were affected by mineral and different organic fertilizers compared to the control. And, the available N, P and K contents in the soils taken from the biohumus (10 t ha-1) and cattle manure (40 t ha-1) treated plots were found to be higher than all of the other treatments and control. Similarly, plots treated recommended mineral fertilizer and different organic fertilizers had a significantly higher yield of potato tuber compared with control. When all applications were compared with each other, it was determined that the treatments that increased the potato yield the highest was the treatment of Biohumus (10 t ha-1) + BioZZ (5 L ha-1, 3 times). The highest nitrate content of tubers was obtained in mineral fertilizer with recommended dose (N150P90K120). Hence, these results suggest that organic production of potato (Biohumus, 10 t ha-1 + BioZZ 5 L ha-1, 3 times) could be an alternative to conventional production in Kazakhstan without reduction in yield, and with low nitrate content of tuber and high available nutrient contents in soil.Potato, organic fertilizer, biohumus, soil, nutrient, tuber nitrate.http://ejss.fesss.org/10.18393/ejss.126091110.18393/ejss.1260911Reducing nitrogen fertilizer combined with biochar amendment improves soil quality and increases grain yield in the intensive rice cultivation systemVu Van Long vvlong@vnkgu.edu.vnTran Van Dung 123222-2282022-09-082023-02-242023-03-062023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies Intensive rice cultivation for a long time resulted in increasing soil degradation and less yield. This study aimed to evaluate effects of the combining reducing nitrogen fertilizer (N) with biochar amendment on soil chemical properties, rice growth parameters, and grain yield in the rice cultivation system in the Mekong Delta region, Vietnam (VMD). Field experiment was designed in the split-plot design with two factors, including N fertilizer (main plot) and biochar (sub-plot). Two N fertilizer rates were: (N50)—50 kg N ha–1 and (N100)—100 kg N ha–1, which is the farmer's practice. Biochar was amended with three rates: no applied biochar (B0), 5 t ha–1 (B5), and 10 t ha–1 (B10). The results indicated that reducing N fertilizer by 50% combined 5–10 t biochar ha–1 resulted in maintaining soil pH, soil electrical conductivity, soil organic carbon, cation exchange capacity, and rice biomass. Applying biochar at a rate of 5–10 t ha–1 significantly increased the available N, available P, and rice height compared to the treatment with no applied biochar (B0). Rice yield in the treatments applied with 5–10 t ha–1 was significantly higher than the treatment without the use of biochar by 11.6–14.7%. The findings of this study confirmed that reducing 50% N fertilizer combined with 5 t ha–1 or 10 t ha–1 of biochar could improve soil available N, available P, rice growth, and grain yield in intensive rice cultivation systems in the VMD region.Biochar, nitrogen, Oryza sativa L., paddy soil, phosphorus, soil fertility.http://ejss.fesss.org/10.18393/ejss.126430510.18393/ejss.1264305Understanding relationship between physical quality indicators and organic carbon in soils affected by long-time continuous cultivation under sub-humid ecosystemDeividas Mikstas Orhan Dengiz odengiz@omu.edu.tr123229-2372022-08-152023-03-022023-03-132023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies The objectives of this present study were to analyses soils and find out some soil quality properties and check relationship between soil compaction, crust formation and erodibility - K of the soils with the soil organic carbon (SOC) amount in the surface (0-20 cm) and subsurface (20-40 cm) soils affected by long-time continuous cultivation under sub-humid environmental condition. The research out comes showed that soil compaction, crust formation, erodibility K is highly significantly (P < 0.001) related to organic carbon, organic carbon stock, organic matter and between each other. The research also identifies that the study area generally, has clay texture, neutral pH, low amount of the CaCO3, high amount of OC and OM in top layer (0-20 cm) and moderate amount in bottom layer (20-40 cm). It was not identified significant differences between the soil properties in surface and subsurface soil layers.Soil organic carbon, compaction, crust formation, erodibility- K.http://ejss.fesss.org/10.18393/ejss.126817610.18393/ejss.1268176Tillage system and cover crop effects on organic carbon and available nutrient contents in light chestnut soil Zhumagali Ospanbayev Ainur Doszhanova ainurdoszhanova@mail.ruYerlan Abdrazakov Rauan Zhapayev Aisada Sembayeva Araily A. Zakieva Zhainagul Yertayeva 123238-2432022-08-222023-03-112023-03-202023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies Optimal use of management systems including tillage and cover crops are recommended to improve available nutrient contents in soils and sustain agricultural production. The effects on organic carbon and available nutrient contents of three tillage methods (conventional tillage, minimum tillage and no-tillage) and different cover crops such as flaxseed oil, buckwheat, soybean, pea, corn, sorghum, spring oilseed rape and sugar beet were evaluated in a short-term experiment on a light chestnut soil in Kazakhstan. Organic carbon and available nutrient contents were measured in the autumn of 2021. The field measurements included the yield of cover crops and input of organic matter into soils with root and other residues of cover crops. In the laboratory, total organic carbon, labile organic carbon, easily hydrolyzable nitrogen (NH4-N), NO3-N, available P and exchangeable K were measured. The results showed that one season of cover crop growth was not enough to find detectable changes in soil organic matter and available nutrient status in light chestnut soils. On the other hand, even in a short-term field experiment period of 3 months, the most labile organic carbon in soil organic carbon was obtained in conventional tillage. Overall, the results show that at least in the short term and under lower drip irrigation rate in summer for the study area, reduced tillage methods (no-tillage and minimum tillage) is suitable in the study area for soybean, corn and sugar beet production after intensive tillage in the previous year.Cover crops, tillage, no-tillage, available nutrient, organic matter.http://ejss.fesss.org/10.18393/ejss.127514910.18393/ejss.1275149Development of Hungarian spectral library: Prediction of soil properties and applicationsMohammed Ahmed MohammedZein mohammdzain@yahoo.comAdam Csorba Brian Rotich Phenson Nsima Justin Caleb Melenya Yuri Andrei Erika Micheli 123244-2562023-01-262023-03-242023-04-012023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies Updating soil information systems (SIS) requires advanced technologies to support the time and cost-effective and environment-friendly soil data. The use of mid- infrared (MIR) Spectroscopy as alternative to wet chemistry has been tested. The MIR spectral library is a useful technique for predicting soil attributes with high accuracy, efficiency, and low cost. The Hungarian MIR spectral library contained data on 2200 soil samples from 10 counties representing the first Soil Information and Mentoring System (SIMS) survey. Archived soil samples were prepared and scanned based on Diffuse Reflectance Infrared spectroscopy (DRIFT) technique and spectra data were saved in the fourier transform infrared (FTIR) spectrometer OPUS software. Preprocessed filtering methods, outlier detection methods and calibration sample selection methods were applied for spectral library. MIR calibration models were built for soil attributes using Partial Least Square Regression (PLSR) method. Coefficient determination (R2), The Root Mean Squared Error (RMSE) and Ratio of Performance to Deviation (RPD) were used to assess the goodness of calibration and validation models. MIR spectral library had the ability to significantly estimate soil properties such as SOC, CaCO3, sand, clay and silt through various scale models (national, county and soil type). The findings showed that our spectral library soil estimations are precise enough to provide information on national, county and soil type levels enabling a wide range of soil applications that demand huge amounts of data such as soil survey, precision agriculture and digital soil mapping.Fourier-transform infrared spectroscopy, mid-infrared spectroscopy, partial least square regression, soil information system.http://ejss.fesss.org/10.18393/ejss.127611910.18393/ejss.1276119Mapping the sensitivity of land degradation in the Ouergha catchment (Morocco) using the MEDALUS approachMohamed Boutallaka Mohamed El Mazi mazimed63@gmail.comYoussef Ben-Brahim Abdelghani Houari 123257-2662022-12-042023-03-282023-04-032023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies Soil degradation is a global phenomenon affecting the productivity of agricultural land. Due to the low vegetation cover and the aggressive climate, Morocco presents a significant case of soil degradation through erosion and desertification. The Ouergha catchment is highly vulnerable to this scourge. The objective of this study was to assess the sensitivity of land to degradation in the Ouergha catchment area. The MEDALUS approach, widely used in the Mediterranean region, was used to assess the sensitivity of soils to degradation/desertification. This approach integrates four indicators that strongly influence this phenomenon (climate, soil, vegetation and human pressure). The results show that more than half of the study area has a medium sensitivity of land to degradation. The critical areas represent 16.2% and correspond to bare land characterized by steep slopes and absence of vegetation. Low sensitivity areas occupy a limited proportion of 21.9% and correspond to wet summits and conserved forest areas. Climate change could lead to a further increase in areas susceptible to degradation.Land degradation, MEDALUS approach, GIS, Ouergha catchment, Morocco.http://ejss.fesss.org/10.18393/ejss.127709610.18393/ejss.1277096Simulation of irrigation in southern Ukraine incorporating soil moisture state in evapotranspiration assessmentsVsevolod Bohaienko sevab@ukr.netTetiana Matiash Mykhailo Romashchenko 123267-2762022-02-152023-03-292023-04-052023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies The paper studies the accuracy of modeling moisture transport under the conditions of sprinkler irrigation using evapotranspiration assessment methods that take into account the soil moisture conditions. Appropriate modifications of the Penman-Monteith and the Priestley-Taylor models are considered. Moisture transport modeling is performed using the Richards equation in its integer- and fractional-order forms. Parameters identification is performed by the particle swarm optimization algorithm based on the readings of suction pressure sensors. Results for the two periods of 11 and 50 days demonstrate the possibility of up to ~20% increase in the simulation accuracy by using a modified Priestley-Taylor model when the maintained range of moisture content in the root layer is 70%-100% of field capacity. When irrigation maintained the range of 80%-100% of field capacity, moisture content consideration within evapotranspiration assessment models did not enhance simulation accuracy. This confirms the independence of evapotranspiration from soil moisture content at its levels above 80% of field capacity as in this case actual evapotranspiration reaches a level close to the potential one. Scenario modeling of the entire growing season with the subsequent estimation of crop (maize) yield showed that irrigation regimes generated using evapotranspiration models, which take into account soil moisture data, potentially provide higher yields at lower water supply.Evapotranspiration, Richards equation, soil moisture, corn productivity.http://ejss.fesss.org/10.18393/ejss.128450610.18393/ejss.1284506The effects of clinoptilolite type of zeolite and synthesised zeolite-enriched fertilizer on yield parameters of Cucumber (Cucumis sativus) plant and some chemical properties in dark chestnut soilTursunay Vassilina v_tursunai@mail.ruBeybit Nasiyev Gulnissam Rvaidarova Aigerim Shibikeyeva Nurzikhan Seitkali Akmarzhan Salykova Zhainagul Yertayeva 123277-2812022-09-152023-04-142023-04-172023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies Zeolites have been used in agriculture since the 1960s, due to the effectiveness of these crystalline microporous solids as soil amendments for plant growth, their cation exchange capacity (CEC) and slow-release fertilizer properties. Most work on slow-release fertilizers has focused on natural Clinoptilolite, Phillipsite and Chabazite. The aim of this study was to synthesize clinoptilolite type of zeolite-enriched fertilizer study their effectiveness as soil amendments. Greenhouse experiments were performed to study the effects of clinoptilolite type of zeolite, synthesised zeolite-enriched ammophos fertilizer and ammophos fertilizer (12% N, 52% P2O5) on yield parameters of Cucumber (Cucumis sativus) plant and some chemical properties in dark chestnut soil. According to greenhouse experiment results, there were significant differences among the treatments in relation to yield parameters (weight of one cucumber, shoot length, number of leaves, area of 10 leaves, number of fruits and fruit weight per plant) of cucumber and available nutrient contents of soil. It was determined that the yield parameters of cucumber plant, available nutrient contents (N, P and K) and cation exchange capacity were increased the most by synthesised zeolite-enriched fertilizer application.Zeolite, clinoptilolite, synthesis of zeolite enriched fertilizer, cucumber, nutrient.http://ejss.fesss.org/10.18393/ejss.129103310.18393/ejss.1291033Main factors in polycyclic aromatic hydrocarbons accumulations in the long-term technogenic contaminated soilTamara Dudnikova Svetlana Sushkova terra_rossa@mail.ruTatiana Minkina Andrey Barbashev Carla Sofia Santos Ferreira Elena Antonenko Evgenyi Shuvaev Gulnora Bakoeva 123282-2892022-10-192023-04-252023-05-022023-06-25 Copyright © 2016 The authors and Federation of Eurasian Soil Science Societies The PAHs transformation in the soils of the coal mining enterprises impact zones and thermal power plants remains poorly studied. In turn, coal mining can be considered as a primary cycle in the production of electricity. One of the main sources of negative environmental impact is the coal mining industry located on the territory of the upland in the south of the East European Plain. The features of PAHs accumulation in the soils of fuel and energy enterprises have been studied on the example of mines impact zones with different service life and the current coal-fired power plant. It was established that, regardless of the period and intensity of the emission source, as well as its current status, the polycyclic aromatic hydrocarbons (PAHs) content in the soils of the impact zones was significantly higher than in the soils of the background territory. The content of low molecular and high molecular weight PAHs in the impact zones soils differed depending on the land use type, as well as the period and intensity of an industrial effect type. The pollutants content of in the soils of all considered impact zones significantly exceeded the background values and according to the low molecular weight PAHs content in the soils, they formed the following decreasing series: Mayskiy ≥ Ayutinsky > Novoshahtinsk > Power station > Background. According the high molecular weight PAHs content, the series changed to: Novoshahtinsk >Mayskiy ≥ Ayutinsky > Power station > Background. Soil pollution markers for enterprises of the fuel and energy complex were identified as pyrene and chrysene, which are part of coal, formed from the hydrocarbon sources. The influence of the power plant was accompanied by the benzo(g,h,i)perylene concentration increase.Priority PAHs, thermal power station, coal mining, anthracite, soil pollution.