scholarly journals Group fractional composition of humus of alluvial soils of floodplain of Western Bug River

Author(s):  
Yuriy Nakonechnyy

Fractionally-group composition of humus alluvial turf, meadow, meadow marsh and bog soils of floodplain of Western Bug River was characterized. The results of studies of quality of soil humus of floodplain of this river by Ukrainian and foreign researchers were analyzed. The main indicators of fractionally-group composition of humus soils were studied. Key words: alluvial soils, humus of soil, fractionally-group composition of humus, humic acids, fulvic acids.

2012 ◽  
Vol 63 (3) ◽  
pp. 31-36
Author(s):  
Erika Tobiašová ◽  
Juraj Miškolczi

Abstract In this study, the soil structure of two soil types (Haplic Chernozems and Eutric Fluvisols) in four ecosystems (forest, meadow, urban and agro-ecosystem) with dependence on humus substances were compared. The stability of dry-sieved and waterresistant macro-aggregates and micro-aggregates with a dependence on the proportion of humus substance fractions was determined. Quantity of humus substances influenced mainly water-resistant aggregates. A positive correlation was recorded between size fraction of 2.3 mm and contents of humus substances (P < 0.01; r = +0.710) and fulvic acids (P < 0.05; r = +0.634), and negative correlation between size fraction of 0.5.1 mm and contents of humus substances (P < 0.05; r = -0.613) and fulvic acids (P < 0.01; r = -0.711). Humic acids influenced mainly the formation of dry-sieved aggregates and fulvic acids played an important role in micro-aggregate formation. The quality of humus substances influenced more intensively the formation of dry-sieved aggregates. There were positive correlations between optical parameters of humus substances and humic acids and larger dry-sieved aggregates (3.7 mm) and negative correlations with smaller (0.5.3 mm). The highest proportions of larger size of water-resistant aggregates (1. 20 mm) were in forest ecosystem, but smaller (0.25.1 mm) agreggates were dominated in agro-ecosystem.


2010 ◽  
pp. 13-22
Author(s):  
N. Ismagilova

On the basis of experimental and literary data the assessment of humus state of arable layer of differently cultivated typical agrarian-grey heavy loamy non-eroidated soils of the center of the Non-Black Earth zone of Russia was carried out. The gradations of humus content corresponding to the different level of soil fertility were determined. The optimal interval of humus content is calculated on the basis of its minimal value in non-erodized agrarian soils of the region and optimal limits of transforming organic matter. It is shown that at development of grey soils under forest in arable horizonThe content of humus, fulvic acids, mobile humic acids, extracted 0.1 n. NaOH, decreases, and the amount of humic acids associated with Ca sharply increases with the increase of their optical density and ratio to mobile humic acids to the level in agronomic black soil. Further domestication of agrarian soils on the background of systematic application of increased doses of organic fertilizers, along with increasing the content of humus, there are reverse changes in the ratio of these fractions of humic acids. At the same time, the optical density of humic acids associated with clay minerals decreases significantly, which indicates the processes of their renewal and enrichment by aliphatic structures. Criteria of difference between agrarian soils and podzolic soils and agronomic chernozems by quality of humus in arable horizon are discussed.


2007 ◽  
Vol 52 (2) ◽  
pp. 145-153
Author(s):  
Svjetlana Cupac ◽  
Aleksandar Djordjevic ◽  
Ljubinko Jovanovic

The effect of land use on group and fractional composition of humus was examined in 13 rendzina profiles under forests, 12 profiles under grassland and 8 profiles under arable fields in different parts of Serbia where rendzinas are typically found. The difference regarding land use of rendzina soils (depending on cultural practices or absence of any, and different amounts and quality of plant residues) under forest, grassland or arable fields had a highly significant statistical effect on humus group composition and the fractional composition of humic and fulvic acids. Human activities have brought about some positive changes regarding humus composition by promoting its stable component in rendzinas under grassland and arable fields, which is not the case in forest rendzina. The conversion of forests into grasslands and arable fields did not significantly affect the type of humus in rendzina soils, which remained characteristic of that soil type.


Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 204 ◽  
Author(s):  
Marcin Becher ◽  
Magdalena Banach-Szott ◽  
Agnieszka Godlewska

The objective of the work was to evaluate selected properties of spent substrates used for growing button mushrooms (SMSs) and the content and quality of the organic matter in this material in the context of rational use for fertilisation purposes and potential impact on the soil environment. The materials were sampled at production facilities located in the east of Mazovia. The density and amount of spent substrate on shelves where mushrooms were cultivated were determined. The following were analysed in the laboratory: reaction, carbonate content, TC (total carbon) and TOC (total organic carbon) contents, total nitrogen, organic matter fraction composition, and humic acids properties. It was confirmed that this material had a marked potential to enrich soils in organic matter, nitrogen, and carbonates. The analysis revealed that the most important qualitative properties of the organic matter were related to the relatively high share of labile organic compounds (the fraction separated with 0.05 M H2SO4 and the fraction of fulvic acids). The humic acids had similar properties regardless of their origins. The humic acids (HAs) molecules displayed a substantial share of aliphatic structures which are typical of these materials at their initial decomposition stage. It can be assumed that, due to such properties, spent mushroom substrates are materials which can be directly introduced into the soil to improve their quality and prevent degradation.


2016 ◽  
Vol 23 (1) ◽  
pp. 143-154 ◽  
Author(s):  
Michał Kopeć ◽  
Krystyna Twarowska-Schmidt ◽  
Krzysztof Gondek

Abstract The problem of incorporating plastics into the environment will be aggravating, both regarding its scale and kind of these materials. Investigations were carried out using aliphatic-aromatic copolyester poly (succinate-co-glutarate-co-adipate-co-terephthalate 1,4-butylene) with addition of fatty acid dimers. The work aimed to determine the effect of composting the copolyester with plant biomass on changes of fractional composition of humus substances and their stability. Copolyester was supplemented to the biomass in the form of a nonwoven fabric in two doses. It constituted 8 and 16% of the dry mass of the composted substrates. The composting process was run within two ranges of ambient temperature 25-30°C and 40-45°C. After the completion of this process, the degree of material maturing was assessed using manometric methods and the carbon content was analysed in the individual organic matter fractions. On the basis of cumulated respiratory activity AT4 a lack of composted material activity was revealed in the higher temperatures of the process. However, in the objects where copolyester was transformed in the lower temperatures this activity was considerably diversified. Adding copolyester to the composted biomass led to a diversification of the Cha : Cfa ratio. The values of Cha : Cfa ratio most approximating 1.5, ie the value regarded as optimal, were registered in the object, where copolyester supplement constituted 16% and the plant biomass was maintained within the 40-45°C temperature range.


Author(s):  
Ľubica Pospíšilová ◽  
Naděžda Fasurová ◽  
Lubomír Jurica

Assesment of soil organic matter quality is one of the urgent problems of contemporary agriculture. Determination of humic acids (HAs) optical properties using spectroscopic techniques could be a reliable step for this evaluation. We followed differences in the functional groups of HAs preparations and showed correlation between optical indexes and fractional composition of humus. UV-VIS and SFS spectral lines and indexes were measured in mixture 0.1M pyrophosphate sodium solution and 0,1M NaOH, after filtration and appropriate dilution. Differences in the structural composition of HAs originating from different soil types were studied after isolation of HAs preparations using FTIR spectroscopy (KBr + HAs pellets, SRATR FTIR method). Results showed that studied HAs preparations could be divided into two groups. First group included HAs isolated from Chernozem and Haplic Luvisol with higher content of aromatic constituents and condensation degree. The second group were HAs isolated from Eutric Cambisol and Fluvi-Eutric Gleysol. They reflected lower content of aromatic compounds, lower condensation degree and more aliphatic structural groups in the HAs molecule. Linear correlation between fractional composition of humus and optical indexes (I501/I487, Q4/6) was found.


2019 ◽  
Vol 65 (No. 4) ◽  
pp. 172-180
Author(s):  
Wiera Sądej ◽  
Andrzej Cezary Żołnowski

A field experiment was established in 1972 on Luvisol. Three types of fertilizers – cattle manure (CM), cattle slurry (CS) and mineral fertilizers were used. CS was applied in the following doses: I – balanced with CM in terms of the amount of introduced total nitrogen and II – balanced with CM in terms of the amount of introduced total organic carbon (C<sub>tot</sub>). 39 years after the experiment was established, half of each experimental plot was limed and since then the experiment was carried in two series – non-limed and limed soils. The paper presents the results of soil analyses 41 years after the experiment was started. It was found that each fertilization system increased the C<sub>tot</sub> content in soil in relation to the unfertilized control plot. The increase of C<sub>tot</sub> fluctuated between 0.35–6.22 g/kg of dry matter. In both series, the highest C<sub>tot</sub> content was observed in the soil fertilized with CM and CM + PK. Limed compared to non-limed soil contained nearly 25% more carbon of humic acids than fulvic acids and nearly 20% lower content of low molecular humic bonds. Liming considerably widened the humic acids carbon:fulvic acids carbon (C<sub>HA</sub>:C<sub>FA</sub>) ratio of the fertilized soils, up to 1.32–1.87, while the corresponding objects of the non-limed series showed the C<sub>HA</sub>:C<sub>FA</sub> ratio between 0.75–0.97.


Author(s):  
Ramiro Remigio Gaibor Fernández ◽  
Abraham Adalberto Bayas Zamora ◽  
Galo Israel Muñoz Sánchez ◽  
Cristhian Adrián Rivas Santacruz

The objective of the present investigation was to evaluate the physical characteristics of the vermicompost and the quality of the purine of the red Californian (Eisenia foetida) using different substrates of feed for these worms. For this purpose, nine treatments were studied: 75% African palm rachis + 25% cattle manure, 50% African palm rachis + 50% cattle manure, 25% African palm rachis + 75% livestock manure, 50% manure of cattle, 50% of manure of cattle, 25% of manure of cattle, 50% of manure of cattle, 50% of manure of cattle, 50% of rach of coconut + 50% of manure of Livestock, 25% coccus rachis + 75% livestock manure. The substrate made up of 50% of rachis of coconut and 50% of livestock manure can be used in nurseries or nurseries for being the one that registered a value of pH 7.3 plus the closest to the neutral compared to the others, besides this (75% of oil palm rachis and 25% of cattle manure) showed a higher content of humic and fulvic acids (0.87 and 0.45 p / p, respectively), compounds that are important for agriculture by stimulating plant growth, in addition to this reflection 0.06% sulfur content, 4.0 ppm boron, 7.0 ppm copper, 47.5 ppm iron, 6.0 ppm manganese, with a presence of microorganisms of the species Trichoderma, Penicillium, Cladosporium sp. in amounts of 1.91x105 UFC / ml, however in this substrate was obtained between 13.3 and 43.5% less liquid slurry in Comparison with other treatments.


2017 ◽  
pp. 75-80
Author(s):  
Quoc Duong Doan ◽  
Thi Ha Vo

Background: Community pharmacists play an important role in counseling of rational drug use for population. The study aimed to characterize counselling activities of drug use and demand of counselling tools at some community pharmacies at Hue City. Materials and method: A 17-question survey were asked to fill pharmacy staffs of a convenient sample of 100 community pharmacies at Hue City from 2/2017 to 7/2017. Results: There were 58 pharmacies (58.0%) answered this survey. Cough, headache, fever, high blood pressure and diabetes were the most popular symptoms/diseases presented in pharmacies. Patients often need counselling about dose (82.8%) and when to take medicine (79.3%). The main bariers for counselling were a lack of time (53.4%), and of skills/medthods for counseling (31.7%). About 96.6% pharmacies demanded counselling tools and favorite formats were book (32.9%) or pocket handbook (29.3%). Conclusion: Most pharmacies demanded counselling tools. Other studies should be conducted to develop supporting tools for counseling and to assess the quality of counseling in pharmacies. Key words: community pharmacy, counseling of drug use, pharmacist, Hue


Author(s):  
Джээнбүбү Бегеева

Аннотация. В статье анализируется качество переводов рассказов В.Шукшина, осуществленных в середине 70-х годов С. Наматбаевым. Переводоведческий анализ вывил многочисленные стилевые расхождения между оригиналом и переводом. При переводе одного из лучших рассказов Шукшина «Чудик» искажения стиля не передали психологические тонкости рассказа. При переводе рассказа «Дядя Ермолай» философский аспект рассказа выпал, так как переводчик исказил жанровую специфику. Перевод рассказа «Два письма» оказался более качественным по сравнению с предыдущими. Переводчик рассказа «Два письма» сумел приблизиться к оригиналу, расшифровать его основную тональность, воспроизвести атмосферу напряженных поисков истины героем рассказа Николаем Иванычем. Этот перевод оказался более качественно выполненным по сравнению с предыдущим рассказом «Дядя Ермолай». Причину переводческого успеха можно объяснить, прежде всего, доступностью содержания рассказа, да и сам герой не столь сложная и глубокая личность, как повествователь в рассказе о дяде Ермолае. В целом, переводы С.Наматбаева являются своеобраз- ным этапом в переводческом деле. В настоящее время необходимо более полное и глубокое восприятие творчества В.Шукшина и создания новых адекватных переводов. Ключевые слова: качество переводов, стилевые расхождения, психологические тонкости, философский аспект, этапом. Аннотация. Макалада В.Шукшиндин аңгемелеринин кыргыз тилине которуудагы сапаты каралат, котормолор 1970-жылдары котормочу С.Наматбаев аркылуу жаралган. Котормонун сапатына талдоо жүргүзгөндө көпчүлүк каталар табылган, алардын эң олуттуусу стилдердин айырмасы, негизги чыгарма менен котормонун ортосунда. Мисалы, “Чудик” деген аңгеменин психологиялык мүнөздөмөсү жоголуп кеткен. “Ермолай байке” деген аңгемеде жанрдын туура эмес берилишинен жазуучунун негизги ою жоголуп кеткен. “Эки кат” деген аңгеме беркилерге караганда сапаттуу которулган. Котормочу " Эки кат" деген аңгемени оригиналга жакындатып которгон. Башкы каарман Николай Иванычтын изденүүлөрүн, ойлорун, чындыкты табууга аракеттерин Шукшинден кем эмес окуучуларга жеткирген. Котормочунун жетишкендиги аңгеменин түшүнүктүү мазмуну менен түшүндүрсө болот, жана Николай Ивановичтин жөнөкөйлүгү менен. С.Наматбаевдын котормолору каталарына карабастан котормочулук иште алдыга жылуу болгон. Бирок, азыркы заманда сапаттуу котормо жаратууда мезгил келди. Түйүндүү сөздөр: которуудагы сапаты, стилдердин айырмасы, психологиялык мүнөздөмөсү, негизги ою жоголуп. Annotation. The quality of translation of the Shukshins stories is analyzed in the Middle 70- years. By S.Namatbaev. The translation analysis had idenh hed numerous style discrepancies between the original and the translation. The psychological feature of the compasihion were not be hansfered by the translation one the bestand famous story by. V.Shukshin due to distorhion of the style. By the translation of the story “The uncle Ermolai” had full a phisichal aspect of the story, because the translator had distorted the genre specifics. The translation of the stories “Two letters” was wade more qualitative comparated with another stories. Generally, the Namatbaevs translation are a sui generis stage in the translatiobs. We need currently more total and profound perception of the creation by V.Shukshin. The create of the new adeavate translation is the main task. The head of the theory and history of Russian literature department. V. Shukshin’s stories and problems of translation them into Kyrgyz language. This article is analysed the quality of translation of V. Shukshin’s stories, which were written in 70 th with S. Namatbaev. Translation analyse deduced many stylistic variations between translated version and original. There is a misrepresentation, was not transmitted psychological subtleties of the story in translation of one of the best V. Shuk- shin’s story “Wierdo”. Metaphysical dimension is disappeared in translation of the story “Uncle Ermolai”, since translator destort the genre specificity. The translation of the story “Two letters” has been more qualitative in comparison with previous translations. In common, S. Namatbaev’s translation is a genius stage in translation. It needs more full and deep comprehension of S. Shukshin’s work and to establish new suitable translation. Key words: Quality of translation, stylistic variation, psychological subtleties, metaphysical dimension, stage.


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