Pub Date : 2018-06-28DOI: 10.17951/PJSS.2018.51.1.159
K. Cybulska, I. Wrońska, Kacper Rygielski, Marta Kowarska
One of the problems in the development of the agro-food industry is the production of enormous quantities of organic waste. In recent years, in order to minimize the negative impact of waste on the environment, emphasis is put on their recycling. Organic matter derived from poultry industry waste can be processed into other products, including compost. The aim of the study was to evaluate the phytoremediation of selected plant species on the compost substrate obtained from the poultry waste as compared to other commercial composts available on the market. Analyses used the Phytotoxkit containing three test species: sorghum (Sorghum saccharatum), bittercress (Lepidium sativum) and white mustard (Sinapis alba). The test plants were placed on four different substrates: control soil, poultry compost, vermicompost and Compo Sana®. Phyto-reactivity of plants tested on compost prepared from poultry waste on a background of other commercial products was dependent on the plant species and the type of substrate. Poultry waste compost exhibited equally good nutritional properties in the composition of macro and micronutrients, which determined the growth and development of seedlings. It particularly refers to the stimulation of the growth of underground parts of mustard and bittercress, respectively 65% and 86% of the control value, and the aboveground parts, that were higher by 46% and 38%, respectively.
{"title":"Assessment of the compost made of poultry post-slaughter waste on a background of commercial preparations applying the phytotoxkit analysis","authors":"K. Cybulska, I. Wrońska, Kacper Rygielski, Marta Kowarska","doi":"10.17951/PJSS.2018.51.1.159","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.159","url":null,"abstract":"One of the problems in the development of the agro-food industry is the production of enormous quantities of organic waste. In recent years, in order to minimize the negative impact of waste on the environment, emphasis is put on their recycling. Organic matter derived from poultry industry waste can be processed into other products, including compost. The aim of the study was to evaluate the phytoremediation of selected plant species on the compost substrate obtained from the poultry waste as compared to other commercial composts available on the market. Analyses used the Phytotoxkit containing three test species: sorghum (Sorghum saccharatum), bittercress (Lepidium sativum) and white mustard (Sinapis alba). The test plants were placed on four different substrates: control soil, poultry compost, vermicompost and Compo Sana®. Phyto-reactivity of plants tested on compost prepared from poultry waste on a background of other commercial products was dependent on the plant species and the type of substrate. Poultry waste compost exhibited equally good nutritional properties in the composition of macro and micronutrients, which determined the growth and development of seedlings. It particularly refers to the stimulation of the growth of underground parts of mustard and bittercress, respectively 65% and 86% of the control value, and the aboveground parts, that were higher by 46% and 38%, respectively.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"159"},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46681430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-06-28DOI: 10.17951/PJSS.2018.51.1.133
C. Stolz, U. Deppe, Gerd Kämmer, M. Kuhwald, D. Nass, L. Sönnichsen
The present study analyzes a short-term observation of a newly created nature conservation area. The aim was to investigate different effects of grazing by cattle and, otherwise, the frequent mowing on the development of nutrient contents of soils. The results are typical for the strong sandy Weichselian outwash plain in the north of Central Europe (Schleswig-Holstein, Germany). Two neighboring testing areas of different use and sowed with an agricultural grass were observed for more than two years. The first area had been grazed intensively by cattle and the other one had been mowed twice a year. During this time, several nutrients and other soil parameters have been analyzed at regular intervals. Furthermore, we made observations about soil compaction and the succession of vegetation. The results show a stronger reduction especially of nitrogenous nutrients on the mowing area (-25%). In contrast, on the grazing area, the contents of nitrogen doubled during two growing seasons (+125%). However, a high atmospheric input of nitrogen strengthened the result. Less conclusive were the results about the contents of potassium, phosphorus and SOM. Therefore, mowing could be advised, if quick results are required concerning the impoverishment of soils. Furthermore, the development of succession vegetation was quite different on both areas with the number of plant species 12% higher on the grazing area. However, long-term but non-intensive cattle-grazing must still be rated as an excellent method of maintenance for this type of cultural landscape. It corresponds with the centuries-old land-use practice in this type of landscape and promotes high level of biodiversity. Therefore, there is nothing that speaks against non-intensive grazing from the beginning on a newly created nature-protection area within a long-term conception of nature conservation. The removal of A horizons should be avoided as it damages Holocene soil profies and has only short-term effects.
{"title":"The development of nutrient contents on a new conservation area in the far North of Germany concerning different types of use. A proposal for a sustainable development in nature conservation practice","authors":"C. Stolz, U. Deppe, Gerd Kämmer, M. Kuhwald, D. Nass, L. Sönnichsen","doi":"10.17951/PJSS.2018.51.1.133","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.133","url":null,"abstract":"The present study analyzes a short-term observation of a newly created nature conservation area. The aim was to investigate different effects of grazing by cattle and, otherwise, the frequent mowing on the development of nutrient contents of soils. The results are typical for the strong sandy Weichselian outwash plain in the north of Central Europe (Schleswig-Holstein, Germany). Two neighboring testing areas of different use and sowed with an agricultural grass were observed for more than two years. The first area had been grazed intensively by cattle and the other one had been mowed twice a year. During this time, several nutrients and other soil parameters have been analyzed at regular intervals. Furthermore, we made observations about soil compaction and the succession of vegetation. The results show a stronger reduction especially of nitrogenous nutrients on the mowing area (-25%). In contrast, on the grazing area, the contents of nitrogen doubled during two growing seasons (+125%). However, a high atmospheric input of nitrogen strengthened the result. Less conclusive were the results about the contents of potassium, phosphorus and SOM. Therefore, mowing could be advised, if quick results are required concerning the impoverishment of soils. Furthermore, the development of succession vegetation was quite different on both areas with the number of plant species 12% higher on the grazing area. However, long-term but non-intensive cattle-grazing must still be rated as an excellent method of maintenance for this type of cultural landscape. It corresponds with the centuries-old land-use practice in this type of landscape and promotes high level of biodiversity. Therefore, there is nothing that speaks against non-intensive grazing from the beginning on a newly created nature-protection area within a long-term conception of nature conservation. The removal of A horizons should be avoided as it damages Holocene soil profies and has only short-term effects.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"133-158"},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47078372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-24DOI: 10.17951/PJSS.2018.51.1.103
A. Król, Tomasz Żyłowski, J. Kozyra, J. Księżak
The aim of the study was to evaluate the impact of conventional till (CT) and no-till (NT) cultivation systems in long term experiment with maize on soil water dynamics using continuous soil moisture (SM) measurements in the 2014, 2015, 2016 vegetation seasons. The ability of HERMES model to simulate SM was also evaluated in Polish conditions. The long term experiment with maize is located in the Grabow Experimental Farm of Institute of Soil Science and Plant Cultivation – State Research Institute in Masovian Voivodeship – Central Poland (51˚21´18´´N, 21˚40´09´´E). The HERMES model was calibrated by modification of temperature sums in crop parameters file and capacity parameters (field capacity and wilting point) of the experimental site. The results show that NT system has a positive impact on soil water content. However, this improvement is dependent on a year, phenological phase and soil layer. The results showed also that calibrated (until now) model HERMES is able to simulate SM in a wet year. For simulation of SM in a dry year there is still need for future improvement of calibration parameters.
{"title":"Soil moisture under no-tillage and tillage systems in maize long-term experiment","authors":"A. Król, Tomasz Żyłowski, J. Kozyra, J. Księżak","doi":"10.17951/PJSS.2018.51.1.103","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.103","url":null,"abstract":"The aim of the study was to evaluate the impact of conventional till (CT) and no-till (NT) cultivation systems in long term experiment with maize on soil water dynamics using continuous soil moisture (SM) measurements in the 2014, 2015, 2016 vegetation seasons. The ability of HERMES model to simulate SM was also evaluated in Polish conditions. The long term experiment with maize is located in the Grabow Experimental Farm of Institute of Soil Science and Plant Cultivation – State Research Institute in Masovian Voivodeship – Central Poland (51˚21´18´´N, 21˚40´09´´E). The HERMES model was calibrated by modification of temperature sums in crop parameters file and capacity parameters (field capacity and wilting point) of the experimental site. The results show that NT system has a positive impact on soil water content. However, this improvement is dependent on a year, phenological phase and soil layer. The results showed also that calibrated (until now) model HERMES is able to simulate SM in a wet year. For simulation of SM in a dry year there is still need for future improvement of calibration parameters.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"103"},"PeriodicalIF":0.0,"publicationDate":"2018-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46801205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-24DOI: 10.17951/PJSS.2018.51.1.119
R. Pudełko, Małgorzata Kozak, Anna Jędrejek, M. Gałczyńska, Bogdan Pomianek
Until the marketization of economy in 1990, practically there was no unutilised agricultural land in Poland. After the political transformation, the use of marginal land and part of small agricultural parcels located in areas of better soil agricultural suitability became unprofitable for economic reasons. Despite the reform of Polish agriculture, the problem of not using a large part of agricultural land is constantly present. There are currently no detailed data available on the actual scale of regionalisation and the structure of the landuse abandonment in Poland. Due to the above, the objective of this study is to fill knowledge gaps on this phenomenon. Analyses were performed based on cadastral maps for the whole country. It is the first comprehensive and detailed study of this issue, giving the full review of the regionalisation of abandoned land. Unutilised land defined as: cadastral parcels located on rural land, which is not declared as production area by farmers. The study has shown that currently in Poland more than 2.7 million ha of agricultural land is not declared by the farmers as area for agricultural activity. This assessment includes 2.03 million ha of unutilized areas of effective production (parcels > 0.3 ha), which constitutes 14.2% of the overall agricultural area. A significant proportion of the unutilised agricultural land constitute medium and high productivity soils: 59.7 thousand ha of class III, 73.87 thousand ha of class IIIa, 116.6 thousand ha of class IIIb, 240 thousand ha of class IV, 225 thousand ha of class IVa, 221 thousand ha of class IVb. Analyses showed clear regionalisation of the problem of unused potential in the agricultural production area. This situation is particularly visible in Malopolskie, Podkarpackie, Świetokrzyskie, Śląskie, and part of Mazowieckie voivodeships.
{"title":"Regionalisation of unutilised agricultural area in Poland.","authors":"R. Pudełko, Małgorzata Kozak, Anna Jędrejek, M. Gałczyńska, Bogdan Pomianek","doi":"10.17951/PJSS.2018.51.1.119","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.119","url":null,"abstract":"Until the marketization of economy in 1990, practically there was no unutilised agricultural land in Poland. After the political transformation, the use of marginal land and part of small agricultural parcels located in areas of better soil agricultural suitability became unprofitable for economic reasons. Despite the reform of Polish agriculture, the problem of not using a large part of agricultural land is constantly present. There are currently no detailed data available on the actual scale of regionalisation and the structure of the landuse abandonment in Poland. Due to the above, the objective of this study is to fill knowledge gaps on this phenomenon. Analyses were performed based on cadastral maps for the whole country. It is the first comprehensive and detailed study of this issue, giving the full review of the regionalisation of abandoned land. Unutilised land defined as: cadastral parcels located on rural land, which is not declared as production area by farmers. The study has shown that currently in Poland more than 2.7 million ha of agricultural land is not declared by the farmers as area for agricultural activity. This assessment includes 2.03 million ha of unutilized areas of effective production (parcels > 0.3 ha), which constitutes 14.2% of the overall agricultural area. A significant proportion of the unutilised agricultural land constitute medium and high productivity soils: 59.7 thousand ha of class III, 73.87 thousand ha of class IIIa, 116.6 thousand ha of class IIIb, 240 thousand ha of class IV, 225 thousand ha of class IVa, 221 thousand ha of class IVb. Analyses showed clear regionalisation of the problem of unused potential in the agricultural production area. This situation is particularly visible in Malopolskie, Podkarpackie, Świetokrzyskie, Śląskie, and part of Mazowieckie voivodeships.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"119-132"},"PeriodicalIF":0.0,"publicationDate":"2018-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45884559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-01DOI: 10.17951/PJSS.2018.51.1.71
P. Demczuk
Plant cover is an important element in the management of earthen structures and slopes improving their aesthetic values and limiting their vulnerability to denudation processes. With regard to landslide hazards, an important aspect in the presence of plants is the effect of their root systems on the shear strength of the substrate and, consequently, on slope stability. The aim of the study was to determine the impact of the tree cover at the Wysoka Gorka archaeological site on the stability of the earthen embankment on Gora Katedralna in Chelm (Lublin Province). These architectural elements originate from the times of Chelm’s glory in the fist half of the 13th century, when it became the capital of Halych-Volhynia Duchy and a residence of Prince Danylo Romanovych (Isaiecic 1999). The research involved identifiation of the geological structure of the embankment (surveying, measurement of the fitration coeffiient) and laboratory determination of the geotechnical parameters of the soil (particle size distribution and soil compressive strength measured in a triaxial compression apparatus). In the next stage of the study, stability was calculated with limit equilibrium methods in the GeoStudio program. Standard calculations of the embankment stability were performed and the stability coeffiient for the slope devoid of vegetation and the tree-covered slope were compared assuming zero suction pressure. The shear strength parameters of soil reinforced by plant roots were adopted following the recommendations specifid by Hubble et al. (2013). The authors performed a probabilistic analysis in order to determine the probability of critical values of the safety factor (
植物覆盖是土结构和斜坡管理的一个重要因素，可以提高它们的美学价值，限制它们对剥蚀过程的脆弱性。关于滑坡灾害，植物存在的一个重要方面是它们的根系对基材抗剪强度的影响，从而对边坡稳定性的影响。这项研究的目的是确定Wysoka Gorka考古遗址的树木覆盖对Chelm(卢布林省)Gora Katedralna土堤防稳定性的影响。这些建筑元素起源于13世纪上半叶Chelm的辉煌时期，当时它成为Halych-Volhynia公国的首都和Danylo Romanovych王子的住所(Isaiecic 1999)。这项研究包括确定路堤的地质结构(测量、测量渗透系数)和实验室确定土壤的岩土参数(在三轴压缩装置中测量的粒度分布和土壤抗压强度)。在研究的下一阶段，在GeoStudio程序中使用极限平衡法计算稳定性。对路基稳定性进行了标准计算，比较了无植被边坡和有树木覆盖边坡在零吸力条件下的稳定性系数。植物根系加固土抗剪强度参数采用Hubble et al.(2013)的建议。作者进行了概率分析，以确定安全系数(
{"title":"Potential landslide hazard in a zone of stabilised earthen embankments illustrated by Wysoka Górka in Chełm","authors":"P. Demczuk","doi":"10.17951/PJSS.2018.51.1.71","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.71","url":null,"abstract":"Plant cover is an important element in the management of earthen structures and slopes improving their aesthetic values and limiting their vulnerability to denudation processes. With regard to landslide hazards, an important aspect in the presence of plants is the effect of their root systems on the shear strength of the substrate and, consequently, on slope stability. The aim of the study was to determine the impact of the tree cover at the Wysoka Gorka archaeological site on the stability of the earthen embankment on Gora Katedralna in Chelm (Lublin Province). These architectural elements originate from the times of Chelm’s glory in the fist half of the 13th century, when it became the capital of Halych-Volhynia Duchy and a residence of Prince Danylo Romanovych (Isaiecic 1999). The research involved identifiation of the geological structure of the embankment (surveying, measurement of the fitration coeffiient) and laboratory determination of the geotechnical parameters of the soil (particle size distribution and soil compressive strength measured in a triaxial compression apparatus). In the next stage of the study, stability was calculated with limit equilibrium methods in the GeoStudio program. Standard calculations of the embankment stability were performed and the stability coeffiient for the slope devoid of vegetation and the tree-covered slope were compared assuming zero suction pressure. The shear strength parameters of soil reinforced by plant roots were adopted following the recommendations specifid by Hubble et al. (2013). The authors performed a probabilistic analysis in order to determine the probability of critical values of the safety factor (","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"71-81"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42034592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-01DOI: 10.17951/PJSS.2018.51.1.83
L. Kucher
In the soil cover of the forest-steppe zone, typical chernozems, which occupy almost 50% of the total area of arable lands that are insufficiently fertilized with organics and minerals, prevail. Our task was to investigate the potassium content in these soils in order to gain insight into its reserves and availability for agricultural plants. For this purpose, soils of this type of different granulometric texture were investigated. The content of the fine-dispersed fraction of typical chernozems, total potassium in this fraction and in the soil as a whole is determined. Indicators on the genetic horizons were researched there. The content of hydromicaceous minerals as the most available potassium reserves of plants nutrition is shown. The reserves of potassium (after Gorbunov) in one meter-deep layer of investigated soils are calculated. All investigated soils have the same specificity of the reserves distribution in the horizons due to the common genesis processes and the same parent materials. The illuvium horizon of podzolized chernozem entraps a certain part of silt and potassium that is explained by the specifics of the formation of this horizon. Near reserve of chernozem soils contains less than 50% of potassium from the general reserve that suggests the potassium depletion of chernozems.
{"title":"Estimation of potasium reserves in zonal chernozemic soils of Ukraine's forest-steppe","authors":"L. Kucher","doi":"10.17951/PJSS.2018.51.1.83","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.83","url":null,"abstract":"In the soil cover of the forest-steppe zone, typical chernozems, which occupy almost 50% of the total area of arable lands that are insufficiently fertilized with organics and minerals, prevail. Our task was to investigate the potassium content in these soils in order to gain insight into its reserves and availability for agricultural plants. For this purpose, soils of this type of different granulometric texture were investigated. The content of the fine-dispersed fraction of typical chernozems, total potassium in this fraction and in the soil as a whole is determined. Indicators on the genetic horizons were researched there. The content of hydromicaceous minerals as the most available potassium reserves of plants nutrition is shown. The reserves of potassium (after Gorbunov) in one meter-deep layer of investigated soils are calculated. All investigated soils have the same specificity of the reserves distribution in the horizons due to the common genesis processes and the same parent materials. The illuvium horizon of podzolized chernozem entraps a certain part of silt and potassium that is explained by the specifics of the formation of this horizon. Near reserve of chernozem soils contains less than 50% of potassium from the general reserve that suggests the potassium depletion of chernozems.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"83"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41717172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-01DOI: 10.17951/PJSS.2018.51.1.93
F. Mobaraki
One of the major problems of rice cultivation in Guilan is traditional rice cultivation along with autumn tillage and burning last year’s residual, which besides wasting this valuable organic source is followed by environmental pollution in September and October each year. This study aimed to evaluate three different methods of tillage as far as soil physical properties and rice growth under crop residual burning and conservation conditions are concerned. Therefore, an area of 1,800 square meters was chosen in Islamabad Village, Pirbazar District, Rasht. A factorial experiment was designed and conducted in a randomized complete block design with 6 treatments in 3 replications and in 18 plots (each plot = 10 × 10 square meters). Treatments included tillage factor with no-tillage, autumn and winter tillage methods; and residue management factor included crop residual burning and conservation. The results showed that the amount of soil organic matter in residual burning and residual conservation was 2.18% and 2.69%, respectively, showing a 0.51% increase in organic matter. The amount of organic matter in no-tillage method (2.20%) showed a signifiant decrease of 0.32% and 0.38% compared with autumn tillage (2.52%) and winter tillage (2.58%), respectively. Surface water infitration in soil before performing treatments was 2.01 mm per minute, which was signifiantly increased by 2.81 mm per minute in crop residual conservation treatment, 2.91 mm per minute in winter tillage and 2.38 mm per minute in autumn tillage. Rice grain weight was signifiantly increased in residual conservation and no-tillage conditions. According to the results of this study, incorporation of rice residues into the soil by plowing can be recommended.
{"title":"The Impact Interaction of Three Different Tillage Methods and Rice Residual Management on Soil Physical Properties and Rice Growth","authors":"F. Mobaraki","doi":"10.17951/PJSS.2018.51.1.93","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.93","url":null,"abstract":"One of the major problems of rice cultivation in Guilan is traditional rice cultivation along with autumn tillage and burning last year’s residual, which besides wasting this valuable organic source is followed by environmental pollution in September and October each year. This study aimed to evaluate three different methods of tillage as far as soil physical properties and rice growth under crop residual burning and conservation conditions are concerned. Therefore, an area of 1,800 square meters was chosen in Islamabad Village, Pirbazar District, Rasht. A factorial experiment was designed and conducted in a randomized complete block design with 6 treatments in 3 replications and in 18 plots (each plot = 10 × 10 square meters). Treatments included tillage factor with no-tillage, autumn and winter tillage methods; and residue management factor included crop residual burning and conservation. The results showed that the amount of soil organic matter in residual burning and residual conservation was 2.18% and 2.69%, respectively, showing a 0.51% increase in organic matter. The amount of organic matter in no-tillage method (2.20%) showed a signifiant decrease of 0.32% and 0.38% compared with autumn tillage (2.52%) and winter tillage (2.58%), respectively. Surface water infitration in soil before performing treatments was 2.01 mm per minute, which was signifiantly increased by 2.81 mm per minute in crop residual conservation treatment, 2.91 mm per minute in winter tillage and 2.38 mm per minute in autumn tillage. Rice grain weight was signifiantly increased in residual conservation and no-tillage conditions. According to the results of this study, incorporation of rice residues into the soil by plowing can be recommended.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"93"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49587774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-01DOI: 10.17951/PJSS.2018.51.1.41
Maaliou Aziz Maaliou Aziz, Mouzai Liatim Mouzai Liatim
The purpose of this study is to investigate the effects of rainfall erosivity index AI on the hydraulics of overland flow parameters such as the flow velocity, the flow depth, the flow regime, overland flow power and on soil surface characteristics, such as surface roughness and sediment concentration. The erosivity index AI represents six rainfall intensities, 31.40 mm·h-1; 37.82 mm·h-1; 69.49 mm·h-1; 81.85 mm·h-1; 90.39 mm·h-1 and 101.94 mm·h-1 generated by a rainfall simulator. To simulate the soil plot, a soil tray was filled with remolded agricultural sandy soil. The results found have shown that the AI represents better the rainfall than rainfall intensity and related to drop diameter with a power function. Overland flow never exceeded the laminar and subcritical regime; the Reynolds number reacted differently with AI and rainfall intensity, whereas the Froude number has similar reaction with both parameters. Re, Fr and n follow with AI logarithmic, linear and power functions respectively. Finally, AI is a good predictor of soil erosion.
{"title":"The relations between the rainfall erosivity index AI and the hydraulics of overland flow and sediment concentration in sandy soils","authors":"Maaliou Aziz Maaliou Aziz, Mouzai Liatim Mouzai Liatim","doi":"10.17951/PJSS.2018.51.1.41","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.41","url":null,"abstract":"The purpose of this study is to investigate the effects of rainfall erosivity index AI on the hydraulics of overland flow parameters such as the flow velocity, the flow depth, the flow regime, overland flow power and on soil surface characteristics, such as surface roughness and sediment concentration. The erosivity index AI represents six rainfall intensities, 31.40 mm·h-1; 37.82 mm·h-1; 69.49 mm·h-1; 81.85 mm·h-1; 90.39 mm·h-1 and 101.94 mm·h-1 generated by a rainfall simulator. To simulate the soil plot, a soil tray was filled with remolded agricultural sandy soil. The results found have shown that the AI represents better the rainfall than rainfall intensity and related to drop diameter with a power function. Overland flow never exceeded the laminar and subcritical regime; the Reynolds number reacted differently with AI and rainfall intensity, whereas the Froude number has similar reaction with both parameters. Re, Fr and n follow with AI logarithmic, linear and power functions respectively. Finally, AI is a good predictor of soil erosion.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"41"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48812481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-04-01DOI: 10.17951/PJSS.2018.51.1.59
M. Vaverková
This study was aimed at determining effects of increasing simultaneous contamination of soil with Pb and Zn at doses of 200, 400 and 800 mg·kg -1 and with Cd at doses of 5, 10 and 20 mg·kg -1 soil, after the addition of immobilizing agents (zeolite, diatomite, chalcedonite, dolomite, limestone, and activated carbon), on selected properties of soil. In the soil without the immobilizing agents, the highest doses of metals caused a decrease in pH value, total sorption capacity, total exchangeable base cations and saturation of the sorption complex with base cations as well as an increase in hydrolytic acidity and electrical conductivity of the soil. Among the agents applied, dolomite and activated carbon exerted a positive effect on the analyzed properties of soil, as they contributed to an increase in pH value, total exchangeable bases, and total sorption capacity, and to a decrease in hydrolytic acidity of the soil. The addition of zeolite caused soil electrical conductivity to decrease compared to the control pot, at all levels of soil contamination with Pb, Cd, and Zn.
{"title":"Evaluation of the addition of immobilizing agents on selected physicochemical properties of soil contaminated with heavy metals","authors":"M. Vaverková","doi":"10.17951/PJSS.2018.51.1.59","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.59","url":null,"abstract":"This study was aimed at determining effects of increasing simultaneous contamination of soil with Pb and Zn at doses of 200, 400 and 800 mg·kg -1 and with Cd at doses of 5, 10 and 20 mg·kg -1 soil, after the addition of immobilizing agents (zeolite, diatomite, chalcedonite, dolomite, limestone, and activated carbon), on selected properties of soil. In the soil without the immobilizing agents, the highest doses of metals caused a decrease in pH value, total sorption capacity, total exchangeable base cations and saturation of the sorption complex with base cations as well as an increase in hydrolytic acidity and electrical conductivity of the soil. Among the agents applied, dolomite and activated carbon exerted a positive effect on the analyzed properties of soil, as they contributed to an increase in pH value, total exchangeable bases, and total sorption capacity, and to a decrease in hydrolytic acidity of the soil. The addition of zeolite caused soil electrical conductivity to decrease compared to the control pot, at all levels of soil contamination with Pb, Cd, and Zn.","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"59"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47695530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-02-19DOI: 10.17951/PJSS.2018.51.1.23
A. Klimek-Kopyra, A. Oleksy, T. Zając, T. Głąb, R. Mazurek
In recent years, sustainable crop development has played a key role in current strategies to improve roots activity, which increase nutrients uptake in pulse crop. Our study presents the relationship between root system morphology, inoculant application with and without foliar fertilization and nitrogen accumulation in soil and plants. Two inoculants: Nitragina and IUNG, foliar fertilizer (Photrel), as well as two pea cultivars were studied in three years (2009–2011) period. The research has shown that bacterial inoculants have signifiant inflence on the selected parameters of pea root systems. Gel inoculant signifiantly increased mean root diameter (0.44 mm), compared to control (0.33 mm), whereas combination of Nitragina inoculant with micronutrient fertilization signifiantly increased root length density (1.05 cm·cm-3), compared to control (0.85 cm·cm-3). Additionally, the bacterial inoculant IUNG has signifiantly decreased the root length density in roots classes between 0.2–0.5 mm in the most humid year. The impact of inoculants on roots parameters was strongly related to weather conditions. In a dry year, a signifiant decrease of mean root diameter, specifi root length and increase of root dry mass were observed. Nitrogen accumulation in seeds signifiantly increased after gel inoculant application. A higher N content was proven in the fodder cultivar, but the edible cultivar was observed to accumulate more N in the seeds, which caused a Nitrogen Harvest index for this plant (80.0%).
{"title":"Impact of inoculant and foliar fertilization on root system parameters of pea (Pisum sativum l.)","authors":"A. Klimek-Kopyra, A. Oleksy, T. Zając, T. Głąb, R. Mazurek","doi":"10.17951/PJSS.2018.51.1.23","DOIUrl":"https://doi.org/10.17951/PJSS.2018.51.1.23","url":null,"abstract":"In recent years, sustainable crop development has played a key role in current strategies to improve roots activity, which increase nutrients uptake in pulse crop. Our study presents the relationship between root system morphology, inoculant application with and without foliar fertilization and nitrogen accumulation in soil and plants. Two inoculants: Nitragina and IUNG, foliar fertilizer (Photrel), as well as two pea cultivars were studied in three years (2009–2011) period. The research has shown that bacterial inoculants have signifiant inflence on the selected parameters of pea root systems. Gel inoculant signifiantly increased mean root diameter (0.44 mm), compared to control (0.33 mm), whereas combination of Nitragina inoculant with micronutrient fertilization signifiantly increased root length density (1.05 cm·cm-3), compared to control (0.85 cm·cm-3). Additionally, the bacterial inoculant IUNG has signifiantly decreased the root length density in roots classes between 0.2–0.5 mm in the most humid year. The impact of inoculants on roots parameters was strongly related to weather conditions. In a dry year, a signifiant decrease of mean root diameter, specifi root length and increase of root dry mass were observed. Nitrogen accumulation in seeds signifiantly increased after gel inoculant application. A higher N content was proven in the fodder cultivar, but the edible cultivar was observed to accumulate more N in the seeds, which caused a Nitrogen Harvest index for this plant (80.0%).","PeriodicalId":20295,"journal":{"name":"Polish Journal of Soil Science","volume":"51 1","pages":"23-39"},"PeriodicalIF":0.0,"publicationDate":"2018-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48169688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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