Anna Szafrańska, G. Podolska, Edyta Aleksandrowicz, A. Sułek
. The purpose of this work was to determine the effects of lowering nitrogen fertilization on the baking value of winter wheat cultivars and it also serves as a response to the implementation of the Nitrates Directive. Nine wheat cultivars were tested, which represented four technological groups that are included in the Polish National List of Agricultural Plant Varieties. The wheat was cultivated over a period of two seasons as a two-factor field experiment designed to utilize the method of randomized blocks, in four replicates. Two distinct applications of nitrogen fertilizer were adopted in the experiment: 120 and 200 kg ha -1 N. The Zeleny index, the quantity of protein and gluten, and the alveograph characteristics were determined in order to assess the baking value of t he wheat. Lowering the level of nitrogen fertilization to 120 kg ha -1 N caused a negative effect on the quality of the wheat, with regard to a lower Zeleny index, protein and gluten quantity. The alveograph parameters were affected by wheat cultivars while the nitrogen dose applied and the crop year had no effect. Lowering the degree of nitrogen fertilization of wheat crops to comply with the Nitrates Directive implementation may cause the production of wheat with a lower protein quantity which is a crucial parameter in grain trading. However, the reduction in nitrogen fertilization causes only a slight, statistical non-significant reduction in the alveograph characteristics of wheat flour dough
． 本研究的目的是确定降低氮肥对冬小麦品种烘烤值的影响，同时也作为对硝酸盐指令实施的回应。对9个小麦品种进行了测试，它们代表了波兰国家农业植物品种清单中的四个技术组。采用随机区组法，采用双因素田间试验方法，分4个重复进行2个季节的小麦栽培。试验采用120和200 kg ha -1 n两种不同的施氮量，测定小麦的泽莱尼指数、蛋白质和面筋含量以及肺泡特征，以评价小麦的烘烤价值。当施氮量降至120 kg / h -1 N时，小麦品质受到负面影响，Zeleny指数、蛋白质和面筋含量均下降。小麦品种对肺泡参数有影响，施氮量和作物年份对肺泡参数无影响。为符合硝酸盐指令的实施而降低小麦作物的氮肥施用程度，可能导致小麦产量的蛋白质含量降低，而蛋白质含量是粮食贸易的关键参数。然而，氮肥的减少只会导致小麦粉面团的肺泡特征有轻微的、统计上不显著的降低
{"title":"Implementation of the Nitrates Directive and its influence on the baking value of winter wheat","authors":"Anna Szafrańska, G. Podolska, Edyta Aleksandrowicz, A. Sułek","doi":"10.31545/intagr/156085","DOIUrl":"https://doi.org/10.31545/intagr/156085","url":null,"abstract":". The purpose of this work was to determine the effects of lowering nitrogen fertilization on the baking value of winter wheat cultivars and it also serves as a response to the implementation of the Nitrates Directive. Nine wheat cultivars were tested, which represented four technological groups that are included in the Polish National List of Agricultural Plant Varieties. The wheat was cultivated over a period of two seasons as a two-factor field experiment designed to utilize the method of randomized blocks, in four replicates. Two distinct applications of nitrogen fertilizer were adopted in the experiment: 120 and 200 kg ha -1 N. The Zeleny index, the quantity of protein and gluten, and the alveograph characteristics were determined in order to assess the baking value of t he wheat. Lowering the level of nitrogen fertilization to 120 kg ha -1 N caused a negative effect on the quality of the wheat, with regard to a lower Zeleny index, protein and gluten quantity. The alveograph parameters were affected by wheat cultivars while the nitrogen dose applied and the crop year had no effect. Lowering the degree of nitrogen fertilization of wheat crops to comply with the Nitrates Directive implementation may cause the production of wheat with a lower protein quantity which is a crucial parameter in grain trading. However, the reduction in nitrogen fertilization causes only a slight, statistical non-significant reduction in the alveograph characteristics of wheat flour dough","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44810681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Agnieszka Ostrowska, Michał Dziurka, Katarzyna Hura, Tomasz Hura
1. Ainsworth E.A. and Long S.P., 2005. What have we learned from 15 years of free air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2. New Phytol., 165, 351-372, https://doi.org/10.1111/j.1469.... CrossRef Google Scholar
{"title":"A delay in the senescence during a rehydration following soil drought is a precondition for limiting yield loss in triticale","authors":"Agnieszka Ostrowska, Michał Dziurka, Katarzyna Hura, Tomasz Hura","doi":"10.31545/intagr/156670","DOIUrl":"https://doi.org/10.31545/intagr/156670","url":null,"abstract":"1. Ainsworth E.A. and Long S.P., 2005. What have we learned from 15 years of free air CO2 enrichment (FACE)? A meta-analytic review of the responses of photosynthesis, canopy properties and plant production to rising CO2. New Phytol., 165, 351-372, https://doi.org/10.1111/j.1469.... CrossRef Google Scholar","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136371685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mykola Kochiieru, V. Feiza, D. Feiziene, K. Lamorski, I. Deveikyte, V. Seibutis, S. Pranaitiene
. Abstract. The aggregate stability of the soil is subject to the influence of anthropogenic factors and is of great interest all over the world. The research aimed to quantify the correlations between soil organic carbon, total nitrogen, total phosphorus, and total potassium, soil macropore parameters and water-stable aggregates under no-tillage and conventional tillage in Cambisol. The content of water-stable aggregates and macroporosity tended to increase in the following order: conventional tillage (returned residues) < conventional tillage (removed residues) < no-tillage (removed residues) < no-tillage (returned residues) in both fertilizations. The relationships between total nitrogen and various soil factors were investigated: soil organic carbon (r = 0.65, p < 0.05), total phosphorus (r = 0.65, p < 0.05), were statistically significant. Soil organic carbon and total nitrogen were positively correlated with water-stable aggregates (r = 0.81, p < 0.01 and r = 0.68, p < 0.05, respectively), whereas the relationship between total potassium and water-stable aggregates was negative. The relationship between total phosphorus and water-stable aggregates (r = 0.62, p < 0.05) was positive. The soil chemical properties, macropores and water-stable aggregates that were averaged across the residues and fertilizations were higher in no-tillage than in conventional tillage. Soil organic carbon, total nitrogen and total phosphorus all had a positive direct influence on the formation of water-stable aggregates under different tillage conditions. Since our results are largely based on correlations, the mechanisms of interaction between the soil chemical properties, water-stable aggregates and the formation of pores in the soil need to be explored further in future investigations.
{"title":"Long-term contrasting tillage in Cambisol: effect on water-stable aggregates, macropore network and soil chemical properties","authors":"Mykola Kochiieru, V. Feiza, D. Feiziene, K. Lamorski, I. Deveikyte, V. Seibutis, S. Pranaitiene","doi":"10.31545/intagr/156632","DOIUrl":"https://doi.org/10.31545/intagr/156632","url":null,"abstract":". Abstract. The aggregate stability of the soil is subject to the influence of anthropogenic factors and is of great interest all over the world. The research aimed to quantify the correlations between soil organic carbon, total nitrogen, total phosphorus, and total potassium, soil macropore parameters and water-stable aggregates under no-tillage and conventional tillage in Cambisol. The content of water-stable aggregates and macroporosity tended to increase in the following order: conventional tillage (returned residues) < conventional tillage (removed residues) < no-tillage (removed residues) < no-tillage (returned residues) in both fertilizations. The relationships between total nitrogen and various soil factors were investigated: soil organic carbon (r = 0.65, p < 0.05), total phosphorus (r = 0.65, p < 0.05), were statistically significant. Soil organic carbon and total nitrogen were positively correlated with water-stable aggregates (r = 0.81, p < 0.01 and r = 0.68, p < 0.05, respectively), whereas the relationship between total potassium and water-stable aggregates was negative. The relationship between total phosphorus and water-stable aggregates (r = 0.62, p < 0.05) was positive. The soil chemical properties, macropores and water-stable aggregates that were averaged across the residues and fertilizations were higher in no-tillage than in conventional tillage. Soil organic carbon, total nitrogen and total phosphorus all had a positive direct influence on the formation of water-stable aggregates under different tillage conditions. Since our results are largely based on correlations, the mechanisms of interaction between the soil chemical properties, water-stable aggregates and the formation of pores in the soil need to be explored further in future investigations.","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45123897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Horabik, Maciej Bańda, V. Vozárová, Ľ. Kubík, M. Stasiak
{"title":"DEM modeling of wood sawdust compaction and breakage strength of pellets determined in diametral compression test","authors":"J. Horabik, Maciej Bańda, V. Vozárová, Ľ. Kubík, M. Stasiak","doi":"10.31545/intagr/156086","DOIUrl":"https://doi.org/10.31545/intagr/156086","url":null,"abstract":"","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46610416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of mechanical differences in sugarcane on the quality of mechanical harvesting","authors":"Zhi Li, Shiyan Li, Zhaoli Lin, Huan Zhang","doi":"10.31545/intagr/156026","DOIUrl":"https://doi.org/10.31545/intagr/156026","url":null,"abstract":"","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49157484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Hernández-Aguilar, A. Domínguez-Pacheco, Elisa Domínguez-Hernández, Rumen Ivanov Tsonchev, M. D. C. Valderrama-Bravo, M. L. Alvarado-Noguez
. The aim of this research was to evaluate the effects of UV-C light on lentil ( Lens culinaris ) and its conditioning by Spirulina . The main findings were: (i) Lentil brightness presented a significant slight variation (9%) when compared to the control (T 0 ) and UV-C (T 10 =10 min) irradiated lentil samples. (ii) The total flavonoids tended to increase by 17% at 10 min (49.18 μg mL -1 ) compared to T 0 (42.07 μg mL -1 ). (iii) The conditioning of lentils with UV-C (0, 5, and 10 min) and the imbibition in water with Spirulina (0, 0.5, 0.75, and 1.5%) generated significant statistical differences (p ≤ 0.05) in the seedlings. The priming cyanobacte - ria Spirulina improved the physiological quality against damage caused by UV-C radiation. (iv) Morphological changes occurred in the lentils due to radiation, damage in the testa (protective layer on the outside) area (row 1) due to the application of UV-C was found, which increases with higher exposure to radiation. Through the application of UV-C for 10 min the cell wall and protein body were damaged. However, no damage to the starch is visible. (v) FT-IR indicates that the UV-C radiation did not induce any change in the chemical structure of the starch but, decreases in intensity within the range of 3 000-3 600 cm -1 indicated differ - ences in their water content, while those between 1 600-1 700 cm -1 were attributed to the reorganization of the secondary structure of proteins.
{"title":"Effects of UV-C light and Spirulina maxima seed conditioning on the germination and the physical and nutraceutical properties of lentils (Lens culinaris)","authors":"C. Hernández-Aguilar, A. Domínguez-Pacheco, Elisa Domínguez-Hernández, Rumen Ivanov Tsonchev, M. D. C. Valderrama-Bravo, M. L. Alvarado-Noguez","doi":"10.31545/intagr/156025","DOIUrl":"https://doi.org/10.31545/intagr/156025","url":null,"abstract":". The aim of this research was to evaluate the effects of UV-C light on lentil ( Lens culinaris ) and its conditioning by Spirulina . The main findings were: (i) Lentil brightness presented a significant slight variation (9%) when compared to the control (T 0 ) and UV-C (T 10 =10 min) irradiated lentil samples. (ii) The total flavonoids tended to increase by 17% at 10 min (49.18 μg mL -1 ) compared to T 0 (42.07 μg mL -1 ). (iii) The conditioning of lentils with UV-C (0, 5, and 10 min) and the imbibition in water with Spirulina (0, 0.5, 0.75, and 1.5%) generated significant statistical differences (p ≤ 0.05) in the seedlings. The priming cyanobacte - ria Spirulina improved the physiological quality against damage caused by UV-C radiation. (iv) Morphological changes occurred in the lentils due to radiation, damage in the testa (protective layer on the outside) area (row 1) due to the application of UV-C was found, which increases with higher exposure to radiation. Through the application of UV-C for 10 min the cell wall and protein body were damaged. However, no damage to the starch is visible. (v) FT-IR indicates that the UV-C radiation did not induce any change in the chemical structure of the starch but, decreases in intensity within the range of 3 000-3 600 cm -1 indicated differ - ences in their water content, while those between 1 600-1 700 cm -1 were attributed to the reorganization of the secondary structure of proteins.","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48862758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoxue Guo, Zhijun Liu, D. Gao, Cheng-Tang Xu, Kexin Zhang, Xianzhao Liu
. The challenge of predicting soil organic carbon distribution accurately has received great attention in order to support urban green space soil management during climate change. This study compared four geostatistical methods: kriging combined with land use, ordinary kriging, inverse distance weighting and radial basis function, to predict the spatial distribution patterns of soil organic carbon content and soil organic carbon density in the Xiong'an New Area, estimate organic carbon stocks, and assess the role of land use types in the spatial prediction of soil organic carbon stocks. The results showed that the soil organic carbon content decreased with increasing soil depth, and was significantly affected by different land use types (p<0.05). The correlation coefficient values of kriging combined with land use were on average 0.229 higher than those of other methods. The root mean squared error and the mean absolute error of kriging combined with land use were on average 0.148 and 0.139 lower than those of the other methods. Kriging combined with land use has a greater advantage over other methods in predicting the spatial distribution of soil organic carbon content, and also the spatial distribution of soil organic carbon density and the spatial distribution of soil organic carbon, the prediction results of the four interpolation methods were similar. The average soil organic carbon density was 2085 Gg (0-30 cm) and 1363 Gg (30-60 cm). In conclusion, land use type clearly influences the spatial distribution of soil organic carbon in urban areas, and by using land use type as auxiliary data, we can obtain a more accurate spatial distribution of soil organic carbon and predict the total storage capacity of the soil. This study may result in significant advances in the spatial prediction of soil organic carbon for urban areas.
{"title":"Application of land use modes in the spatial prediction of soil organic carbon in urban green spaces","authors":"Xiaoxue Guo, Zhijun Liu, D. Gao, Cheng-Tang Xu, Kexin Zhang, Xianzhao Liu","doi":"10.31545/intagr/156027","DOIUrl":"https://doi.org/10.31545/intagr/156027","url":null,"abstract":". The challenge of predicting soil organic carbon distribution accurately has received great attention in order to support urban green space soil management during climate change. This study compared four geostatistical methods: kriging combined with land use, ordinary kriging, inverse distance weighting and radial basis function, to predict the spatial distribution patterns of soil organic carbon content and soil organic carbon density in the Xiong'an New Area, estimate organic carbon stocks, and assess the role of land use types in the spatial prediction of soil organic carbon stocks. The results showed that the soil organic carbon content decreased with increasing soil depth, and was significantly affected by different land use types (p<0.05). The correlation coefficient values of kriging combined with land use were on average 0.229 higher than those of other methods. The root mean squared error and the mean absolute error of kriging combined with land use were on average 0.148 and 0.139 lower than those of the other methods. Kriging combined with land use has a greater advantage over other methods in predicting the spatial distribution of soil organic carbon content, and also the spatial distribution of soil organic carbon density and the spatial distribution of soil organic carbon, the prediction results of the four interpolation methods were similar. The average soil organic carbon density was 2085 Gg (0-30 cm) and 1363 Gg (30-60 cm). In conclusion, land use type clearly influences the spatial distribution of soil organic carbon in urban areas, and by using land use type as auxiliary data, we can obtain a more accurate spatial distribution of soil organic carbon and predict the total storage capacity of the soil. This study may result in significant advances in the spatial prediction of soil organic carbon for urban areas.","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44094277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Findura, Ivana Šindelková, R. Rusinek, H. Karami, M. Gancarz, Petr Bartos
. There are increasing demands to increase the pro-ductivity of crops grown in unfavourable soil conditions. The ob-jective of this study was to evaluate the potential of biostimulants to improve soil properties and crop yields. A field experiment was conducted to assess the impact of Neosol (a soil activator), biostimulant Explorer (a rhizosphere activator) and AKEO (min - eral fertilizer activator, Olmix Group) on soil in terms of the yields of spring and winter wheat and winter rape. Numerous soil char - acteristics related to soil structure were evaluated at the 0-20 and 20-40 cm depth ranges e.g. bulk density, soil porosity, structural coefficient. The results show that the application of biostimulants has a positive effect on soil bulk density, porosity and the struc - tural coefficient. The biostimulants had a positive effect on the yields of crops.
{"title":"Determination of the influence of biostimulants on soil properties and field crop yields","authors":"P. Findura, Ivana Šindelková, R. Rusinek, H. Karami, M. Gancarz, Petr Bartos","doi":"10.31545/intagr/155955","DOIUrl":"https://doi.org/10.31545/intagr/155955","url":null,"abstract":". There are increasing demands to increase the pro-ductivity of crops grown in unfavourable soil conditions. The ob-jective of this study was to evaluate the potential of biostimulants to improve soil properties and crop yields. A field experiment was conducted to assess the impact of Neosol (a soil activator), biostimulant Explorer (a rhizosphere activator) and AKEO (min - eral fertilizer activator, Olmix Group) on soil in terms of the yields of spring and winter wheat and winter rape. Numerous soil char - acteristics related to soil structure were evaluated at the 0-20 and 20-40 cm depth ranges e.g. bulk density, soil porosity, structural coefficient. The results show that the application of biostimulants has a positive effect on soil bulk density, porosity and the struc - tural coefficient. The biostimulants had a positive effect on the yields of crops.","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46474879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
. Cropping systems are one of the most important living components affecting the surface soil spatial variability. Composite disturbed and undisturbed soils were collected (inter-sections of the grid system, 50 x 50 m) at 0-20 and 20-40 cm depths under maize ( Zea mays ), wheat ( Triticum aestivum ), and alfalfa ( Medicago sativa L.) cropping systems from the farmer’s field, in the Igdir Plain, eastern Turkey. Soil spatial variability was based on clay, silt, and sand, calcium carbonate (CaCO 3 ) and organic matter, the pH, electrical conductivity, bulk density, aggregate stability and penetration resistance of the soil were determined. The data was analysed using both statistical and geostatistical approaches and suggested that the spatial distribution model and spatial dependence level varied significantly within the farm soils. Exponential, Gaussian, and spherical semivariogram models were found to be the best models to explain the spatial structure of the soil properties. Clay and sand, electrical conductivity, soil organic matter, bulk density, aggregate stability, and penetration resistance were found to be significantly different between the soil depths. The soil property ranges of the variogram were between 58.5 and 305.9 m and showed a moderate to strong spatial dependence. The development of spatial distribution maps for the soil variables analysed provided for a comparison to be made between the various soil properties and raises the possibility of understanding heterogeneity within the farm in the form of a regional representation. It may be concluded that these maps will assist in determining site-specific soil use and identifying the impact of soil management.
种植系统是影响地表土壤空间变异性的最重要的生物组成部分之一。在土耳其东部伊格迪尔平原农民的田地里，在玉米（玉米）、小麦（小麦）和苜蓿（苜蓿）种植系统下，在0-20和20-40厘米的深度采集了扰动和未扰动的复合土壤（网格系统的横断面，50 x 50米）。土壤空间变异性基于粘土、淤泥和沙子、碳酸钙（CaCO3）和有机质，测定了土壤的pH值、电导率、堆积密度、团聚体稳定性和抗渗透性。使用统计学和地统计学方法对数据进行了分析，结果表明，农田土壤中的空间分布模型和空间相关性水平差异很大。指数、高斯和球形半变差函数模型被发现是解释土壤性质空间结构的最佳模型。粘土和沙子、电导率、土壤有机质、堆积密度、骨料稳定性和渗透阻力在土壤深度之间存在显著差异。变差函数的土壤性质范围在58.5至305.9 m之间，表现出中等至强烈的空间依赖性。所分析的土壤变量的空间分布图的开发提供了各种土壤特性之间的比较，并提高了以区域代表的形式理解农场内异质性的可能性。可以得出结论，这些地图将有助于确定特定地点的土壤使用，并确定土壤管理的影响。
{"title":"Management systems impact on soil spatial variability under semi-arid climates conditions","authors":"Serdar Sari","doi":"10.31545/intagr/155276","DOIUrl":"https://doi.org/10.31545/intagr/155276","url":null,"abstract":". Cropping systems are one of the most important living components affecting the surface soil spatial variability. Composite disturbed and undisturbed soils were collected (inter-sections of the grid system, 50 x 50 m) at 0-20 and 20-40 cm depths under maize ( Zea mays ), wheat ( Triticum aestivum ), and alfalfa ( Medicago sativa L.) cropping systems from the farmer’s field, in the Igdir Plain, eastern Turkey. Soil spatial variability was based on clay, silt, and sand, calcium carbonate (CaCO 3 ) and organic matter, the pH, electrical conductivity, bulk density, aggregate stability and penetration resistance of the soil were determined. The data was analysed using both statistical and geostatistical approaches and suggested that the spatial distribution model and spatial dependence level varied significantly within the farm soils. Exponential, Gaussian, and spherical semivariogram models were found to be the best models to explain the spatial structure of the soil properties. Clay and sand, electrical conductivity, soil organic matter, bulk density, aggregate stability, and penetration resistance were found to be significantly different between the soil depths. The soil property ranges of the variogram were between 58.5 and 305.9 m and showed a moderate to strong spatial dependence. The development of spatial distribution maps for the soil variables analysed provided for a comparison to be made between the various soil properties and raises the possibility of understanding heterogeneity within the farm in the form of a regional representation. It may be concluded that these maps will assist in determining site-specific soil use and identifying the impact of soil management.","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2022-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49349422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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