scholarly journals THE INFLUENCE OF SOILS BASED ON SEWAGE SLUDGE FROM LEATHER INDUSTRY ON AGROCHEMICAL INDICES OF SOD-PODZOLIC SOIL

Author(s):  
Е.С. ШЕРШНЕВА ◽  
С.Д. КАРЯКИНА

Проведено исследование эффективности применения разных доз многокомпонентных почвогрунтов на основе осадков сточных (ОСВ) вод кожевенного производства на агрохимические показатели слабогумусированной супесчаной дерново-подзолистой почвы при проведении культуртехнических работ перед озеленением. Цель исследований – изучение действия и последействия почвогрунтов на агрохимические показатели супесчаной дерново-подзолистой почвы в травостое райграса однолетнего сорта «Изорский». Эффективность оценивали на протяжении четырех лет в полевых условиях на опытном полигоне ФГБНУ ВНИИОУ в двух опытах – мелкоделяночном (опыт 1) и вегетационно-полевом (опыт 2). Изучаемые дозы внесения почвогрунтов: 60 тонн на гектар в расчете на 50 %-ю влажность (опыт 1); полное замещение почвогрунтом растительного слоя 0-20 см (опыт 2). Исследование химического состава почвогрунтов и почвенных проб проводили общепринятыми методами комплексного химического анализа; статистическую достоверность результатов определяли методом дисперсионного анализа. Результаты проведенных исследований показали, что наиболее эффективным культуртехническим приемом повышения плодородия слабогумусированной супесчаной дерново-подзолистой почвы на озеленяемых территориях является полное замещение растительного слоя готовым почвогрунтом на глубину пахотного слоя (0-20 см). Положительное влияние обусловлено кислотно-основными свойствами почвогрунтов, а также фактором разложения основной массы под действием почвенного биоценоза, разрушением органоминеральных комплексов в их составе, высвобождением катионов кальция и магния. Данный прием обеспечивает снижение обменной кислотности в почве на 26-32 %, увеличение суммы обменных оснований кальция и магния на 191-246 %, органического вещества – на 97-140 %, содержания подвижных фосфора и калия более чем на 100 %. Эффект проявляется в первый год внесения почвогрунтов. Последействие сохраняется до 4 лет. Оптимальные значения агрохимических показателей дерново-подзолистой почвы достигаются при включении в состав почвогрунта смеси компоста на основе ОСВ кожевенного производства и растительного грунта. The research presents studying the effi ciency of the use of different doses of multicomponent soils based on sewage sludge from leather industry of three options for the agrochemical indicators of slightly humifi ed sandy loamy sod-podzolic soil during agricultural work before landscaping. Effi ciency was evaluated over four years in the fi eld at the experimental training ground of FSBRI VNIIOU in two experiments: a small-plot one (experiment 1) and a fi eld-vegetation one (experiment 2). The studied doses of soil application were 60 tons per hectare per 50% moisture content (experiment 1), full substitution of 0-20 cm of soil layer in the vegetation layer (experiment 2). Studies of the chemical composition of soil and soil samples were carried out by the generally accepted methods of complex chemical analysis. The statistical reliability of the results was determined by dispersion analysis. The results of the studies showed that the most effective cultural technique for increasing the fertility of slightly humus sandy loamy sod-podzolic soil in green areas is the complete replacement of the plant layer with ready-made soil to the depth of the arable layer (0-20 cm). The positive effect was due to the acid-base properties of soil, as well as the factor of decomposition of the bulk under the infl uence of soil biocenosis, the destruction of organic mineral complexes in their composition, the release of calcium and magnesium cations. This technique provided a decrease in metabolic acidity in the soil by 26-32%, an increase in the sum of the exchange bases of calcium and magnesium by 191-246%, organic matter by 97-140%, and the content of mobile phosphorus and potassium by more than 100%. The effect was manifested in the 1st year of soil application. The effect lasted up to 4 years. The most optimal values of agrochemical indicators of sod-podzolic soil were achieved when a compost mixture based on sewage sludge from leather industry and plant soil was included in the soil composition.

2021 ◽  
Vol 12 (3) ◽  
pp. 66-75
Author(s):  
V. I. Lopushniak ◽  
◽  
G. M. Hrytsuliak ◽  

The studies have shown that the introduction of sewage sludge and compost made on its basis, significantly affects the change in the agrochemical parameters of the sod-medium-podzolic soil, increasing the content of the alkaline hydrolysed nitrogen compounds by 2.2 – 13.4 mg/kg of the soil compared to with control and determining the size of its values at the level of 51.2 – 56.5 mg/kg of the soil in the upper (0 – 20 cm) and 27.9 – 31.6 mg/kg – in the lower (20 – 40 cm) soil layer. The content of the ammonium nitrogen compounds in the variants with the fertilizer application fluctuated in a small range of the values (16 – 21 mg/kg of soil) and increases under the influence of increasing fertilizer doses. Together with the change in the content of the nitrate nitrogen, this contributed to an increase in the content of the mineral nitrogen compounds in the soil in the range of 18.5 – 23.4 mg/kg of the soil in arable (0 – 20 cm) and 19.8 – 21.9 mg/kg of the soil – in subsoil (20 – 40 cm) layers, which by 1.7 – 2.2 mg/kg of the soil exceeded the control variant. The highest indicators of the mineral nitrogen compounds were recorded in the variant where the highest dose of the sewage sludge was applied – 40 t/ha and mineral fertilizers (N10P14K58). Despite the wide range of the nitrogen content values of the alkaline hydrolysed compounds and mineral nitrogen compounds, their ratio remained stable and was 2.3 – 2.6 in the upper and 1.3 – 1.5 in the lower (20 – 40 cm) soil layer, and also decreased with the increasing dose of the fertilizer. That is, this indicator did not change significantly depending on the fertilizer application rate. The content of the mobile phosphorus compounds in the variants with the use of the fertilizers fluctuated in the range of the values (77.5 – 98.5 mg/kg of the soil) and increased under the influence of the introduction of the sewage sludge and compost based on it, which is 14.6 – 35.6 mg/kg of the soil was dominated by the control indicators. The highest rates of the mobile phosphorus compounds were recorded in the variant where the sewage sludge were applied – 40 t/ha and N10P14K58. The introduction of the sewage sludge at a rate of 20 – 40 t/ha contributed to an increase in the content of the potassium metabolites at the level of 89.3 – 97.2 mg/kg of the soil in the upper (0 – 20 cm) and 83.1 – 93.4 mg/kg – in the lower (20 – 40 cm) layer, which exceeded the indicators of the control variant by more than 42.1 mg/kg of the soil. The content of the potassium metabolic compounds increased somewhat less with the introduction of the composts based on the sewage sludge and straw. The results of the correlation-regression analysis indicate that the phosphorus concentration coefficient in the soil largely depends on the content of its mobile compounds and is marked by the coefficient of the determination R2 = 0.70. The potassium concentration coefficient is closely (R2 = 0.91) correlated with the content of its metabolic compounds in the soil.


Author(s):  
Hermann C. de Albuquerque ◽  
Geraldo R. Zuba Junio ◽  
Regynaldo A. Sampaio ◽  
Luiz A. Fernandes ◽  
Fabiano B. S. Prates ◽  
...  

ABSTRACTThis study aimed to evaluate the residual effect of sewage sludge fertilization on yield and nutrition of sunflower in its second cycle. The experiment was carried out from April to August 2012. The treatments consisted of four doses of sewage sludge (0, 10, 20 and 30 t ha-1, dry basis) applied in the first cycle of sunflower, distributed in a randomized block design, with six replicates. Sunflower stem diameter, plant height, capitulum diameter and yield increased with the increment in sewage sludge doses, with maximum values observed with the dose of 30 t ha-1. The contents of calcium and magnesium in the soil, pH, sum of bases, effective and potential cation exchange capacity and base saturation increased, while potential acidity and the contents of manganese and iron in the leaves decreased, with the increment in the residual doses of sewage sludge. There was a reduction in yield and growth characteristics of sunflower in the second cycle; thus, additional fertilization with sewage sludge is recommended in each new cycle.


1994 ◽  
Vol 15 (11) ◽  
pp. 1089-1094 ◽  
Author(s):  
M.E. Mesquita ◽  
J‐M. Vieira e Silva ◽  
H. Domingues

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Yanchao Bai ◽  
Wengang Zuo ◽  
Yiyun Yan ◽  
Chuanhui Gu ◽  
Yongxiang Guan ◽  
...  

Sewage sludge and green manure have become widely used organic amendments to croplands in many regions of the world. However, the amending effect of the combination of sewage sludge with green manuring in reclaimed coastal mudflat salt-soil has been unclear yet. This paper was one of earlier studies to investigate and evaluate the effects of sewage sludge amendment combined with green manuring on selected soil physicochemical properties of the mudflat soil in a rain-fed agroecosystem. The mudflat salt-soil was amended by one-time input of sewage sludge at the rates of 0, 30, 75, 150, and 300 t ha−1. After green manuring for three consecutive seasons, maize (Zea maysL.) was planted in 2013 and 2014. The results showed that SSA combined with green manuring decreased bulk density, pH, salinity, and exchangeable sodium percentage of the topsoil (0–20 cm soil layer) and increased aggregate stability, cation exchange capacity, and N and P concentration of the topsoil. As a result, the maize yield increased with the increase of SSA rates. Sewage sludge combined with green manuring can be applied in coastal mudflat salt-soil amendment, which provides an innovative way to create arable land resources and safe disposal of sewage sludge.


2020 ◽  
Vol 99 (3) ◽  
pp. 259-264
Author(s):  
А.К. K. Маненко ◽  
Галина Михайловна Ткаченко ◽  
О.П. P. Касиян ◽  
С.Т. T. Юрченко

Introduction. Nowadays, in front of large cities, there is an acute problem for finding ways of environmentally safely dispose of accumulated sewage sludge and the possibility of its use. The most profitable way to utilize sewage sludge is to use them as organic fertilizers in agricultural production due to the high content of biogenic elements (nitrogen, phosphorus, potassium) and organic substances in their composition. However, the presence of heavy metals, pathogens, and other toxicants necessitates the study at the regional level the possibility of using these sediments as fertilizers. In each specific case, it is necessary to apply a scientific approach to the use of sewage sludge, since their composition is characterized by a qualitative and quantitative variation of chemical compounds. The purpose of the study was a hygienic justification for the possibility of using sludge for wastewater treatment from the municipal facilities in agricultural production as an organic fertilizer. Material and methods. The object of the study was sludge after treatment with flocculants and centrifugation and sludge stored on the sites of Lviv municipal facilities for 1, 6 and 18 months. In the experiment, the distribution of sludge components in the “plant-soil” dynamic system, as well as the degree of their accumulation in test plants, was determined. Quantitative determination of the of chemical elements content in samples of sludge and phytomass was carried out by atomic absorption spectrophotometry. Results. The effectiveness of the use of sludge from the municipal facilities for wastewater treatment in agricultural production as an organic fertilizer has been studied. It was found that the sludge dose of 50 tons/ha, using immediately after centrifuge, can not be used in the fields as a fertilizer. This dose caused a high phytotoxic effect on plants. The dose of used sludge (30 tons/ha after 1.5 years of maturing on silty areas) had a less pronounced phytotoxic effect, but the fact of fluorine, lead, cadmium, arsenic, mercury and manganese translocation from soil into the plants in high quantities was observed. This dose also cannot be used in the fields as a fertilizer. The use of a smaller dose should be justified by additional experiments.


2021 ◽  
pp. 92-115
Author(s):  
M. T. Vasbieva ◽  
N. E. Zavyalova

The phosphate regime of sod-podzolic soil (heavy loam) of Cis-Urals under natural phytocenoses (mixed forest, cereal-grass meadow) and agrophytocenoses was studied. The influence of agricultural use of arable land on phosphate regime was evaluated in the long-term stationary experiment (year of establishment – 1978) and the eastern galega (Galega orientalis L.) (year of sowing – 1988). The total content of phosphorus in soil, quantity of its organic, mineral and plant available forms were studied, the fractional composition of mineral phosphates was considered (using Ginzburg-Lebedeva method). The total content of phosphorus in the upper soil layer in all studied objects varied from 1 030 to 1 350 mg/kg. Mineral phosphorus forms prevailed over organic ones in the soil. It was found that the fractional composition of mineral phosphates was 40–62% represented by iron phosphates and 31–48% by calcium phosphates, which is due to the characteristic features of the soil-forming rock – yellow-brown non-carbonate silt drape. Aluminum phosphates amounted to 8–12%. Long-term cultivation of crops during five cycles of the eight-field crop rotation led to a significant decrease in the content of organic phosphorus in the soil. The lower content of iron phosphates (1.6–1.8 times) and the higher content (1.3–2.0 times) of calcium phosphates, available for plants, were observed in the soil of long-term experiment when compared with natural phytocenoses. The content of plant available phosphorus in soil gradually decreased from 239 to 164 mg/kg from the moment of experiment establishment to the fifth rotation. Prolonged fertilizer application (N60P60K60) resulted in the significant increase in mineral and plant available phosphorus forms content in the soil. The residual phosphorus of fertilizers was noted in the Fe-P, Ca-PI and Ca-PII fractions. Under the eastern galega the quantitative and qualitative indicators of the phosphate regime of the soil did not differ significantly from their natural analogues.


Author(s):  
Е.С. ШЕРШНЕВА

Проблема и цель. Целью исследований явилось изучение биологического действия и последействия почвенных грунтов из осадка стоков производства кожи на микробиологическую активность и изменение азотного режима супесчаной дерново-подзолистой почвы в посевах ярового тритикале и райграса однолетнего. Методология. Проведено исследование урожайности и химического состава растений ярового тритикале, райграса однолетнего в зависимости от изменений микробиологической активности, азотного режима слабогумусированной супесчаной дерново-подзолистой почвы под влиянием почвенных грунтов из осадка стоков производства кожи, отличных по составу. Полевые исследования проводились в вегетационно-полевом и мелкоделяночном опытах в климатических условиях Владимирской области на базе ФГБНУ ВНИИОУ в 2016, 2017, 2018 годах. Почвогрунты вносились с разбавлением в расчете на дозу 60 т/га и с полной заменой пахотного слоя почвогрунтом на глубину 20 см. Микробиологический анализ почвенных проб по вариантам опытов проводили методом количественного учета, агрохимические исследования почвы и растений – общепринятыми методами агрохимического анализа. Результаты. Полученные результаты свидетельствуют об улучшении условий азотного питания растений, повышении содержания аммонийного азота в почве и, как следствие, урожайности за счет стимуляции микробиологических процессов в почве под влиянием почвенных грунтов. Действие почвогрунтов из осадка стоков производства кожи на изменение азотного режима проявляется в повышении содержания аммонийного азота в почве на 45-138 % в зависимости от влажности почвы, фазы вегетации растений и состава почвогрунтов. Наибольшая биологическая эффективность почвогрунтов определена в варианте с включением растительного грунта в состав компоста. Заключение. Биологическое действие и последействие искусственных грунтов, произведенных из осадка стоков производства кожи, на супесчаную дерново-подзолистую почву выражается в повышении микробиологической активности, улучшении азотного режима почвы, повышении урожайности растений. Problem and purpose. The purpose of the research was to study the biological efect and afterefect of soils from the sewage sludge of leather production on the microbiological activity and changes in the nitrogen regime of sandy loam sod-podzolic soil in crops of spring triticale and annual ryegrass. Methodology. A study considered the yield and chemical composition of plants of spring triticale, annual ryegrass, depending on changes in microbiological activity, nitrogen regime of low-humus sandy loamy sod-podzolic soil under the infuence of soil from the wastewater sludge of leather production, diferent in composition. Field studies were carried out in vegetation-feld and small-plot experiments in the climatic conditions of Vladimir region on the basis of FSBSI VNIIOU in 2016, 2017, 2018. Soils were applied with dilution at a dose of 60 t/ha and with a complete replacement of the topsoil by soil at a depth of 20 cm. Microbiological analysis of soil samples according to the variants of experiments was carried out by the method of quantitative accounting, agrochemical studies of soil and plants - by conventional methods of agrochemical analysis. Results. The results obtained indicate an improvement in the conditions for nitrogen nutrition of plants, an increase in the content of ammonium nitrogen in the soil and, as a consequence, the yield due to stimulation of microbiological processes in the soil under the infuence of soils. The efect of soils from the sludge of leather production on the change in nitrogen regime was manifested in an increase in the content of ammonium nitrogen in the soil by 45-138 %, depending on soil moisture, the phase of vegetation of plants and the composition of soil. The highest biological efciency of soil was determined in the variant with the inclusion of plant soil in the compost. Conclusion. The biological efect and afterefect of artifcial soils produced from the sludge of leather production on sandy loamy sod-podzolic soil is expressed in an increase in microbiological activity, an improvement in the nitrogen regime of the soil, an increase in plant productivity.


Author(s):  
Surendra Singh Jatav ◽  
Satish Kumar Singh ◽  
Abhik Patra ◽  
Hanuman Singh Jatav ◽  
Kiran Kumar Mohapatra ◽  
...  

The current investigation was undertaken to explore the physico-biochemical properties of sewage sludge (SS) and its feasible application in agricultural field as an organic manure as source of nutrients with to solve the environmental concern. Sewage sludge samples were collected from sewage treatment plants (STP), Bhagwanpur, Varanasi, Uttar Pradesh, India and passed through a 2 mm sieve for further analysis of different physical, chemical and biological parameters. The treated sewage sludge consists of both major and micro nutrients along with a good amount of organic matter. Application of this sewage sludge has the ability to enhance the physical, chemical and biological properties of soil which is beneficial for plant growth and development sustainable soil environment. However, it also contains some amount of toxic heavy metals and organic pollutants that can adversely affect soil environment depending on the origin source of sewage sludge, and treatment process of sewage sludge. Furthermore, the toxic elements go through the food chain due to its uptake and accumulation by crops posing a possible threat to human health. Sewage sludge application in soil offers essential nutrients particularly for plant growth, maintains the organic carbon in soil and decreases environmental concern with economic factors that restrict landfill or incineration disposal of sewage sludge. However, a careful assessment of the characteristics of sewage sludge is required prior to its soil application to improve the soil health without causing environmental hazard. The SS analyzed in the present study had heavy metals content but was within permissible limits as resulted its suitable for soil application as source of nutrients.


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