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O.p. Yakutina - One of the best experts on this subject based on the ideXlab platform.
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Consequences of snowmelt erosion: Soil fertility, productivity and quality of wheat on Greyzemic Phaeozem in the south of West Siberia
Agriculture Ecosystems & Environment, 2015Co-Authors: O.p. Yakutina, T.v. Nechaeva, N.v. SmirnovaAbstract:Abstract Snowmelt erosion is one of the reasons for the decreasing soil fertility in the most valuable agricultural lands in the south of West Siberia. The aim of this study was to examine the influence of long term soil use and degree of soil erosion on the main fertility indicators of Greyzemic Phaeozem (30-year fallow, non-Eroded, slightly Eroded, moderately Eroded and strongly Eroded). Soils were analysed for organic carbon (SOC), pHw, cation-exchange capacity and total and available forms of nitrogen, phosphorus and potassium. Plants were analysed for sheaf and grain yield and NPK content of wheat. A decrease in the content of the total forms of carbon and nitrogen and an increase in the C/N ratio were observed with an increase in the degree of soil erosion. SOC losses in the ploughed layer of slightly, moderately and strongly Eroded Soils were 6.6, 13 and 27%, respectively, while the nitrogen losses were 5, 33, and 71%. The widest (37) C/N ratio was found in strongly Eroded soil. The content of total phosphorus in the ploughed layer of slightly, moderately and strongly Eroded Soils decreased by 3.8, 23 and 15.4%, respectively, in comparison with non-Eroded soil. Available forms of phosphorus and potassium increased with an increase in the degree of soil erosion, with the highest values found in moderately Eroded soil. Exchangeable K/available K ratio, the overall mobility of potassium in the Eroded Soils also increased. The highest plant productivity was found on moderately Eroded soil. A deterioration of the nitrogen regime led to a narrowing of the N/K ratio from 2.4 (grain) and 0.4 (straw) up to 1.9 (grain) and 0.3 (straw) for non-Eroded and strongly Eroded Soils respectively. A critical decrease of soil fertility and plant productivity was found in strongly Eroded soil.
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Phosphorus content in sediment and Eroded Soils in the southeastern part of West Siberia
Agriculture Ecosystems & Environment, 2010Co-Authors: O.p. YakutinaAbstract:Abstract Water erosion as a result of spring snowmelt damages agricultural land and is accompanied by great losses of plant nutrients, including a considerable amount of phosphorus. The main objectives of this study are as follows: (1) to examine the distribution of total phosphorus (TP) and plant available phosphorus (K2SO4-P) in deposited sediment; and (2) to evaluate the phosphorus pool of Eroded and drift Soils by TP and fractional mineral phosphorus (FPmin) content. This study was carried out on Haplic Chernozem (non-Eroded, moderately Eroded, and strongly Eroded) and stratified, slightly drift Colluvic Regosol in the southeastern part of West Siberia on slopes under both virgin and 5-year natural fallow conditions. Soils and deposited sediment were analysed for total, plant-available and fractional mineral phosphorus. The mineral phosphorus forms were classified into the following groups: fraction PI – phosphate of alkaline metals and NH4, acid and fresh-precipitated Ca (Mg)-P, Fe2+; fraction PII – base-different Ca (Mg)-P, Fe2+; fraction PIII – Al-P; fraction PIV – Fe-P; fraction PV – Ca-P apatite type. The distribution and content of the TP and K2SO4-P in the deposited sediment was similar in character and was accumulated in the fine soil particles. The content (mg P kg−1) of total phosphorus decreased and the sum of all mineral phosphorus fractions increased in the Soils situated on the slope in the following order: non-Eroded (1308 TP, 249 FPmin) to moderately Eroded (785 TP, 279 FPmin) to strongly Eroded (567 TP, 344 FPmin). The approach of A, AB and B horizons to the soil surface enriched the 0–20-cm layer of the Eroded Soils with calcium phosphates of the apatite type hardly available to plants. The drift soil exhibited the maximum content of total phosphorus (916 TP) and the sum of all mineral phosphorus fractions (414 FPmin), especially were enriched in the first two fractions.
Junrui Zhai - One of the best experts on this subject based on the ideXlab platform.
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Water Use Efficiency of Soybean under Water Stress in Different Eroded Soils
Water, 2020Co-Authors: Yun Xie, Jing Wang, Gang Liu, Honghong Lin, Yan Xin, Junrui ZhaiAbstract:Soil erosion could change the effective storage of soil moisture and affected crop water use efficiency (WUE). To quantitative study differences in the WUE of soybean and the crop’s response to water stress for Soils with different degrees of erosion in northeastern China, three erosion degrees—(1) lightly, (2) moderately and (3) severely—Eroded black undisturbed Soils and four years (from 2013 to 2016) of soybean pot experiments were used to control soil water content (100%, 80%, 60%, and 40% field capacity (FC)) and observe the crop growth processes. To study the relationships between erosion–water use–productivity, the following results were achieved: (1) the optimal water content was 80% FC for lightly Eroded soil (L) and 100% FC for both moderately (M) and severely (S) Eroded soil. Yield (Y) was best in M with the value of 3.12 t ha−1, which was 4.6% and 85.5% higher than L and S, respectively. Under the conditions of adequate water supply, there was no significant change in Land M, but the values were significantly different for the S ( p < 0.05). (2) Y and biomass (B) were sensitive to water stress except in the branching stage. (3) The values of WUEY and WUEB for the three Eroded Soils were the best at 80% FC. The stress coefficient (SF) values of the three Eroded Soils were not significantly different. In the flowering and pod formation stage, the SF reached the maximum under waterlogging stress. While the water shortage stress reached the maximum in the seed filling stage, the soil water content decreased by 10%, and the WUEB decreased by 15%, which was 2.5 times more powerful than the waterlogging stress. This study indicated the change in soybean growth with respect to the water response caused by soil erosion, and provided a scientific basis and data for the reasonable utilization of black soil with different erosion intensities. The results also provided important parameters for the growth of simulated crops.
Tugrul Yakupoglu - One of the best experts on this subject based on the ideXlab platform.
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Influence of some organic amendment materials on total porosity of an Eroded soil
Archives of Agronomy and Soil Science, 2012Co-Authors: Tugrul Yakupoglu, Nutullah ÖzdemirAbstract:It is reality that physical properties affect the soil productivity. Gas–water balance of soil is a very important criterion for the explanation of the physical condition of Soils. This properties gain more consequences in Eroded Soils which have low productivity potential. The objective of this study was to determine the effect of resources of organic matter such as sewage sludge (SWS) and tea production waste (TPW) on total porosity (POR) of a slightly, moderately, and severely Eroded soil. Soil samples were treated with the organic waste at four different levels (0, 2, 4, and 6% basis dry weight). The mixtures were incubated at field capacity for four weeks under greenhouse condition. After incubation period, tomato plants (cv. Tore F1) were grown in a greenhouse. One hundred and twelve days after planting, tomato plants were removed from the pots and POR values of Eroded Soils were determined. It was found that SWS and TPW treatments generally increased POR values of Eroded soil comparing to control t...
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The Effect of Bio-solid and Tea Waste Applications on Erosion Ratio Index of Eroded Soils
Land Degradation and Desertification: Assessment Mitigation and Remediation, 2010Co-Authors: Nutullah Özdemir, Tugrul Yakupoglu, Elif Öztürk, Orhan DengizAbstract:The aim of this study was to determine the effects of organic wastes such as bio-solid (BS) and tea waste (TW) on erosion ratio index (ER) of Eroded Soils in different levels (slight, moderate and severe). Soil samples used in this research were taken from surface soil (0–20 cm depth) located on agricultural land of Samsun province in the northern part of Turkey. These soil samples were treated with organic residues at four different levels (0, 2, 4, and 6% basis w/w) and each treatment was replicated three times in a split block design. All pot mixtures were incubated for 4 weeks under greenhouse conditions and later tomato plants were grown in all pots. When plant growth was in its 14th week, the experiment was ended. After greenhouse work, changes in ER values of Eroded Soils were determined. It was determined that the BS and TW treatments dramatically decreased ER values of the Eroded Soils compared to the control treatment. Statistical test results showed that erosion level (p
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the effect of bio solid and tea waste applications on erosion ratio index of Eroded Soils
2010Co-Authors: Nutullah Özdemir, Tugrul Yakupoglu, Elif Öztürk, Orhan DengizAbstract:The aim of this study was to determine the effects of organic wastes such as bio-solid (BS) and tea waste (TW) on erosion ratio index (ER) of Eroded Soils in different levels (slight, moderate and severe). Soil samples used in this research were taken from surface soil (0–20 cm depth) located on agricultural land of Samsun province in the northern part of Turkey. These soil samples were treated with organic residues at four different levels (0, 2, 4, and 6% basis w/w) and each treatment was replicated three times in a split block design. All pot mixtures were incubated for 4 weeks under greenhouse conditions and later tomato plants were grown in all pots. When plant growth was in its 14th week, the experiment was ended. After greenhouse work, changes in ER values of Eroded Soils were determined. It was determined that the BS and TW treatments dramatically decreased ER values of the Eroded Soils compared to the control treatment. Statistical test results showed that erosion level (p <0.001), type of residue (p <0.01) and the application dose (p <0.001) caused the changes of the ER values.
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The effects of various organic wastes applied into Eroded soil on dehydrogenase enzyme activity
Current Research Topics in Applied Microbiology and Microbial Biotechnology, 2009Co-Authors: Tugrul Yakupoglu, Nutullah Özdemir, Suheyda F. Hepsen, Ridvan KizilkayaAbstract:It is known that, organic wastes added to soil improve many soil properties. Bio-solid (BIO), tea production wastes (TEW) and tobacco production wastes (TOW) are some organic wastes used for this target. The objective of our study was to find out the effects of these organic matter sources on dehydrogenase enzyme activity (DHA) in different levels of Eroded Soils. To determine different soil erosion levels (slightly, moderately and severely), erosion ratio (ER) and structural stability index (SSI) parameters were used. ER values of slightly, moderately and severely Eroded Soils were determined as 5.36, 6.65 and 12.17 while their SSI values were determined 78.3, 77.8, and 68.7 respectively. Vertic calciudoll samples used in this research were taken from surface (0 to 20 cm depth) located on agricultural areas of Samsun, Northern Turkey. This area has been used as agricultural activity for a long time. This study was conducted by applying four different doses of BIO, TEW and TOW (0, 2, 4 and 6 %, basis dry weight) into Eroded Soils under greenhouse condition. Each treatment was replicated three times in a split block design. After eighteen weeks incubation period, DHA was determined in all pots. According to analysis results, relation between erosion level and DHA were found as negative. TEW and TOW were increased DHA values in all erosion levels contrast to itself control application. The effects of different organic wastes on DHA were increasing depended on application dose. Additionally, BIO application was increased DHA with 2 % doses whereas it was decreasing DHA with 4 % and 6 % doses. These results were found statistically significant at P
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The effects of bio-solid and tea waste application into different levels of Eroded soil on N, P and K concentrations.
Environmental monitoring and assessment, 2008Co-Authors: Nutullah Özdemir, Tugrul Yakupoglu, Orhan DengizAbstract:The main objective of the study was to find out the effects of various organic matter sources such as bio-solid (BS) and tea waste (TW) on macro nutrient content of Eroded Soils. In order to determine different soil erodibility levels (slightly, moderately and severely), erosion ratio (ER) and soil erodibility factor (K) parameters were used. Soil samples used in this research were taken from bulk surface (0-20 cm depth) located on agricultural lands of Asagi Aksu village that is 20 km far from Samsun province in the north part of Turkey. These lands have been used as agricultural activity. Some properties of the soil classified as Vertic calciudoll were determined as follows; fine in texture, organic matter content varies between 0.83% and 0.90%. In addition, pH and EC values of these Soils are 8.0-8.1 and 0.64-0.79 dSm( - 1) respectively. This study was conducted by applying four different doses of BS and TW (0%, 2%, 4% and 6%) in Eroded Soils under greenhouse condition. Each treatment was replicated three times in a split block design. After 18 weeks incubation period associated parameters were determined in all pots. According to analysis results, it was found that while BS treatments increased total N, available P and exchangeable K content of all Eroded Soils comparing to control treatment, effectiveness of TW on P is very low in slightly and moderately erosion levels. BS and TW applications increased K content in Soils. However, it was determined not significant statistically between effectiveness of these various organic residues whereas, N and P values significantly correlated with BS and TW (P < 0.05). In addition, change of N, P and K values depending on the application doses and soil erosion levels were found statistically significant (P < 0.001).
Nutullah Özdemir - One of the best experts on this subject based on the ideXlab platform.
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Influence of some organic amendment materials on total porosity of an Eroded soil
Archives of Agronomy and Soil Science, 2012Co-Authors: Tugrul Yakupoglu, Nutullah ÖzdemirAbstract:It is reality that physical properties affect the soil productivity. Gas–water balance of soil is a very important criterion for the explanation of the physical condition of Soils. This properties gain more consequences in Eroded Soils which have low productivity potential. The objective of this study was to determine the effect of resources of organic matter such as sewage sludge (SWS) and tea production waste (TPW) on total porosity (POR) of a slightly, moderately, and severely Eroded soil. Soil samples were treated with the organic waste at four different levels (0, 2, 4, and 6% basis dry weight). The mixtures were incubated at field capacity for four weeks under greenhouse condition. After incubation period, tomato plants (cv. Tore F1) were grown in a greenhouse. One hundred and twelve days after planting, tomato plants were removed from the pots and POR values of Eroded Soils were determined. It was found that SWS and TPW treatments generally increased POR values of Eroded soil comparing to control t...
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The Effect of Bio-solid and Tea Waste Applications on Erosion Ratio Index of Eroded Soils
Land Degradation and Desertification: Assessment Mitigation and Remediation, 2010Co-Authors: Nutullah Özdemir, Tugrul Yakupoglu, Elif Öztürk, Orhan DengizAbstract:The aim of this study was to determine the effects of organic wastes such as bio-solid (BS) and tea waste (TW) on erosion ratio index (ER) of Eroded Soils in different levels (slight, moderate and severe). Soil samples used in this research were taken from surface soil (0–20 cm depth) located on agricultural land of Samsun province in the northern part of Turkey. These soil samples were treated with organic residues at four different levels (0, 2, 4, and 6% basis w/w) and each treatment was replicated three times in a split block design. All pot mixtures were incubated for 4 weeks under greenhouse conditions and later tomato plants were grown in all pots. When plant growth was in its 14th week, the experiment was ended. After greenhouse work, changes in ER values of Eroded Soils were determined. It was determined that the BS and TW treatments dramatically decreased ER values of the Eroded Soils compared to the control treatment. Statistical test results showed that erosion level (p
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the effect of bio solid and tea waste applications on erosion ratio index of Eroded Soils
2010Co-Authors: Nutullah Özdemir, Tugrul Yakupoglu, Elif Öztürk, Orhan DengizAbstract:The aim of this study was to determine the effects of organic wastes such as bio-solid (BS) and tea waste (TW) on erosion ratio index (ER) of Eroded Soils in different levels (slight, moderate and severe). Soil samples used in this research were taken from surface soil (0–20 cm depth) located on agricultural land of Samsun province in the northern part of Turkey. These soil samples were treated with organic residues at four different levels (0, 2, 4, and 6% basis w/w) and each treatment was replicated three times in a split block design. All pot mixtures were incubated for 4 weeks under greenhouse conditions and later tomato plants were grown in all pots. When plant growth was in its 14th week, the experiment was ended. After greenhouse work, changes in ER values of Eroded Soils were determined. It was determined that the BS and TW treatments dramatically decreased ER values of the Eroded Soils compared to the control treatment. Statistical test results showed that erosion level (p <0.001), type of residue (p <0.01) and the application dose (p <0.001) caused the changes of the ER values.
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The effects of various organic wastes applied into Eroded soil on dehydrogenase enzyme activity
Current Research Topics in Applied Microbiology and Microbial Biotechnology, 2009Co-Authors: Tugrul Yakupoglu, Nutullah Özdemir, Suheyda F. Hepsen, Ridvan KizilkayaAbstract:It is known that, organic wastes added to soil improve many soil properties. Bio-solid (BIO), tea production wastes (TEW) and tobacco production wastes (TOW) are some organic wastes used for this target. The objective of our study was to find out the effects of these organic matter sources on dehydrogenase enzyme activity (DHA) in different levels of Eroded Soils. To determine different soil erosion levels (slightly, moderately and severely), erosion ratio (ER) and structural stability index (SSI) parameters were used. ER values of slightly, moderately and severely Eroded Soils were determined as 5.36, 6.65 and 12.17 while their SSI values were determined 78.3, 77.8, and 68.7 respectively. Vertic calciudoll samples used in this research were taken from surface (0 to 20 cm depth) located on agricultural areas of Samsun, Northern Turkey. This area has been used as agricultural activity for a long time. This study was conducted by applying four different doses of BIO, TEW and TOW (0, 2, 4 and 6 %, basis dry weight) into Eroded Soils under greenhouse condition. Each treatment was replicated three times in a split block design. After eighteen weeks incubation period, DHA was determined in all pots. According to analysis results, relation between erosion level and DHA were found as negative. TEW and TOW were increased DHA values in all erosion levels contrast to itself control application. The effects of different organic wastes on DHA were increasing depended on application dose. Additionally, BIO application was increased DHA with 2 % doses whereas it was decreasing DHA with 4 % and 6 % doses. These results were found statistically significant at P
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The effects of bio-solid and tea waste application into different levels of Eroded soil on N, P and K concentrations.
Environmental monitoring and assessment, 2008Co-Authors: Nutullah Özdemir, Tugrul Yakupoglu, Orhan DengizAbstract:The main objective of the study was to find out the effects of various organic matter sources such as bio-solid (BS) and tea waste (TW) on macro nutrient content of Eroded Soils. In order to determine different soil erodibility levels (slightly, moderately and severely), erosion ratio (ER) and soil erodibility factor (K) parameters were used. Soil samples used in this research were taken from bulk surface (0-20 cm depth) located on agricultural lands of Asagi Aksu village that is 20 km far from Samsun province in the north part of Turkey. These lands have been used as agricultural activity. Some properties of the soil classified as Vertic calciudoll were determined as follows; fine in texture, organic matter content varies between 0.83% and 0.90%. In addition, pH and EC values of these Soils are 8.0-8.1 and 0.64-0.79 dSm( - 1) respectively. This study was conducted by applying four different doses of BS and TW (0%, 2%, 4% and 6%) in Eroded Soils under greenhouse condition. Each treatment was replicated three times in a split block design. After 18 weeks incubation period associated parameters were determined in all pots. According to analysis results, it was found that while BS treatments increased total N, available P and exchangeable K content of all Eroded Soils comparing to control treatment, effectiveness of TW on P is very low in slightly and moderately erosion levels. BS and TW applications increased K content in Soils. However, it was determined not significant statistically between effectiveness of these various organic residues whereas, N and P values significantly correlated with BS and TW (P < 0.05). In addition, change of N, P and K values depending on the application doses and soil erosion levels were found statistically significant (P < 0.001).
Velasquez, E. Andrade, M., Lavelle P. - One of the best experts on this subject based on the ideXlab platform.
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GISQ, a multifunctional indicator of soil quality
Soil Biology and Biochemistry, 2007Co-Authors: Patrick Lavelle, Velasquez, E. Andrade, M., Lavelle P.Abstract:Abstract: We present here an indicator of soil quality that evaluates soil ecosystem services through a set of 5 subindicators, and further combines them into a single general Indicator of Soil Quality (GISQ). We used information derived from 54 properties commonly used to describe the multifaceted aspects of soil quality. The design and calculation of the indicators were based on sequences of multivariate analyses. Subindicators evaluated the physical quality, chemical fertility, organic matter stocks, aggregation and morphology of the upper 5 cm of soil and the biodiversity of soil macrofauna. A GISQ combined the different subindicators providing a global assessment of soil quality. Research was conducted in two hillside regions of Colombia and Nicaragua, with similar types of land use and socio-economic context. However, soil and climatic conditions differed significantly. In Nicaragua, soil quality was assessed at 61 points regularly distributed 200 m apart on a regular grid across the landscape. In Colombia, 8 plots representing different types of land use were arbitrarily chosen in the landscape and intensively sampled. Indicators that were designed in the Nicaragua site were further applied to the Colombian site to test for their applicability. In Nicaragua, coffee plantations, fallows, pastures and forest had the highest values of GISQ (1.00; 0.80; 0.78 and 0.77, respectively) while maize crops and Eroded Soils (0.19 and 0.10) had the lowest values. Examination of subindicator values allowed the separate evaluation of different aspects of soil quality: subindicators of organic matter, aggregation and morphology and biodiversity of macrofauna had the maximum values in coffee plantations (0.89; 0.72 and 0.56, respectively on average) while Eroded Soils had the lowest values for these indicators (0.10; 0.31 and 0.33, respectively). Indicator formulae derived from information gained at the Nicaraguan sites were not applicable to the Colombian situation and site-specific constants were calculated. This indicator allows the evaluation of soil quality and facilitates the identification of problem areas through the individual values of each subindicator. It allows monitoring of change through time and can guide the implementation of soil restoration technologies. Although GISQ formulae computed on a set of data were only valid at a regional scale, the methodology used to create these indices can be applied everywhere. (C) 2007 Elsevier Ltd. All rights reserved.