O. Pavlova, A. Litvinovich, A. Lavrishchev, A. Belimov, E. Saljnikov
In laboratory column experiments carried out on soddy-podzolic soil reclaimed by industry wastes, the composition of organo-mineral complexes (OMC) migrating during the washing was studied. Carbon from OMC precipitated at pH 13, and ranged from 5.5 to 5.7%, regardless of the particlesizes of applied ameliorant. The optical density (Есg ml -1 ) of OMC solution was 2.7 to 3.1, which is within the range typical forfulvic acids. The total amount of Ca, Mg, Sr washed out from the OMC depended on the size of the ameliorant particles, as well as the content and ratio of alkaline earth metals in it. The smaller the particle size was, the migration losses of Ca, Mg, Sr were higher. The presence of significant amounts of Mg in the ameliorant enhances unproductive loss of the bases. According to the ability to migrate in the OMC, the studied elements can be arranged in the following descending order: Mg> Ca> Sr. Unexpectedly new finding was that not all organic substances migrating in the profile of reclaimed soddy-podzolic soils can precipitate under the conditions of a strongly alkaline reaction of the medium.
对工业废弃物再生的钠灰化土进行了室内柱实验，研究了有机-矿物络合物(OMC)在洗涤过程中迁移的组成。在pH值为13时，OMC中的碳析出量在5.5 ~ 5.7%之间，与应用的改进剂颗粒大小无关。OMC溶液的光密度(Есg ml -1)为2.7 ~ 3.1，在典型的黄腐酸范围内。从OMC中冲刷出的Ca、Mg、Sr的总量取决于改性颗粒的大小，以及其中碱土金属的含量和比例。粒径越小，Ca、Mg、Sr的迁移损失越大。改良剂中大量Mg的存在增加了碱的非生产性损失。根据在OMC中的迁移能力，所研究的元素可以按以下降序排列:Mg> Ca> sr。出乎意料的是，新发现并不是所有在再生钠灰化土中迁移的有机物都能在介质的强碱性反应条件下沉淀。
{"title":"Composition of organo-mineral complexes migrating in soddy-podzolic soil (Umbric Albeluvisols Abruptic)","authors":"O. Pavlova, A. Litvinovich, A. Lavrishchev, A. Belimov, E. Saljnikov","doi":"10.5937/ZEMBILJ1901013P","DOIUrl":"https://doi.org/10.5937/ZEMBILJ1901013P","url":null,"abstract":"In laboratory column experiments carried out on soddy-podzolic soil reclaimed by industry wastes, the composition of organo-mineral complexes (OMC) migrating during the washing was studied. Carbon from OMC precipitated at pH 13, and ranged from 5.5 to 5.7%, regardless of the particlesizes of applied ameliorant. The optical density (Есg ml -1 ) of OMC solution was 2.7 to 3.1, which is within the range typical forfulvic acids. The total amount of Ca, Mg, Sr washed out from the OMC depended on the size of the ameliorant particles, as well as the content and ratio of alkaline earth metals in it. The smaller the particle size was, the migration losses of Ca, Mg, Sr were higher. The presence of significant amounts of Mg in the ameliorant enhances unproductive loss of the bases. According to the ability to migrate in the OMC, the studied elements can be arranged in the following descending order: Mg> Ca> Sr. Unexpectedly new finding was that not all organic substances migrating in the profile of reclaimed soddy-podzolic soils can precipitate under the conditions of a strongly alkaline reaction of the medium.","PeriodicalId":33795,"journal":{"name":"Zemljiste i biljka","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71218300","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}
S. Anđelković, S. Babić, T. Vasić, J. Milenković, J. Marković, Mladen Prijović, Đ. Lazarević
For successful plant production, optimum conditions for microbiological processes need to be ensured, since micro-organisms play a vital role in maintaining fertility of the soil. They respond quickly to changes in the soil ecosystem, so they represent good indicators of soil health. In order to improve plant production and proper soil use, we tested the soil quality of natural and indigenous grasslands of the Municipality of Kosjerić. Eleven samples from sown and nineteen soil samples from natural grasslands were analyzed, with chemical properties and total number of microorganisms determined. The majority of soil samples are of acidic chemical reactions, with medium humus and nitrogen content, low phosphorus content and sufficient amounts of potassium. The total number of microorganisms ranged from 5.778 to 6.431 (log of the number) per gram of absolutely dry soil.
{"title":"Examination of soils under grasslands in the territory of Kosjeric municipality","authors":"S. Anđelković, S. Babić, T. Vasić, J. Milenković, J. Marković, Mladen Prijović, Đ. Lazarević","doi":"10.5937/ZEMBILJ1901071A","DOIUrl":"https://doi.org/10.5937/ZEMBILJ1901071A","url":null,"abstract":"For successful plant production, optimum conditions for microbiological processes need to be ensured, since micro-organisms play a vital role in maintaining fertility of the soil. They respond quickly to changes in the soil ecosystem, so they represent good indicators of soil health. In order to improve plant production and proper soil use, we tested the soil quality of natural and indigenous grasslands of the Municipality of Kosjerić. Eleven samples from sown and nineteen soil samples from natural grasslands were analyzed, with chemical properties and total number of microorganisms determined. The majority of soil samples are of acidic chemical reactions, with medium humus and nitrogen content, low phosphorus content and sufficient amounts of potassium. The total number of microorganisms ranged from 5.778 to 6.431 (log of the number) per gram of absolutely dry soil.","PeriodicalId":33795,"journal":{"name":"Zemljiste i biljka","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71218832","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}
+38765837328 Abstract In order to determine the extent to which reduced light intensity affects some morpho-anatomical characteristics and physiological parameters in young plants of Pisumsativum L. we compared certain plant parameters grown at full illumination (3200 lux) with plants grown at lower intensity illumination (1700, 1000 and 650 lux) in this research.The ultimate goal is a better understanding of the adaptations of the studied species (variety) to different light treatments. Low light intensity had a negative effect on the anatomical structure of the pea leaves and led to the development of thinner leaves compared to the plants grown at full illumination.The results obtained indicate that the thickness of the epidermis of the face and the back, the leaf thickness, the thickness of palisade tissue and the diameter of the conducting bundles decreased with decreasing illumination, while the thickness of the sponge tissue increased with decreasing illumination. The number of stomata both on the face and on the back of the leaves was lower at lower illumination, with the stomata cells being larger in size. The intensity of transpiration decreased with decreasing illumination, which was correlated with the decrease in the number of stomatal cells. The results show that lower light treatment had an inhibitory effect on the photosynthetic pigment content, which indicates the sensitivity of the studied species and raises the question of the level of adaptation and possible diminished yield of the species studied, if grown under poor light
{"title":"Impact of the varying intensity light on some morpho-anatomical characteristics and physiological parameters in young plants of Pisum sativum L.","authors":"Tanja Maksimović, N. Janjić, B. Lubarda","doi":"10.5937/zembilj2001046m","DOIUrl":"https://doi.org/10.5937/zembilj2001046m","url":null,"abstract":"+38765837328 Abstract In order to determine the extent to which reduced light intensity affects some morpho-anatomical characteristics and physiological parameters in young plants of Pisumsativum L. we compared certain plant parameters grown at full illumination (3200 lux) with plants grown at lower intensity illumination (1700, 1000 and 650 lux) in this research.The ultimate goal is a better understanding of the adaptations of the studied species (variety) to different light treatments. Low light intensity had a negative effect on the anatomical structure of the pea leaves and led to the development of thinner leaves compared to the plants grown at full illumination.The results obtained indicate that the thickness of the epidermis of the face and the back, the leaf thickness, the thickness of palisade tissue and the diameter of the conducting bundles decreased with decreasing illumination, while the thickness of the sponge tissue increased with decreasing illumination. The number of stomata both on the face and on the back of the leaves was lower at lower illumination, with the stomata cells being larger in size. The intensity of transpiration decreased with decreasing illumination, which was correlated with the decrease in the number of stomatal cells. The results show that lower light treatment had an inhibitory effect on the photosynthetic pigment content, which indicates the sensitivity of the studied species and raises the question of the level of adaptation and possible diminished yield of the species studied, if grown under poor light","PeriodicalId":33795,"journal":{"name":"Zemljiste i biljka","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71218660","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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