scholarly journals CHANGES IN THE PHYSICAL AND CHEMICAL PROPERTIES OF SOIL UNDER THE INFLUENCE OF MANURE, GREEN MANURE AND THE STOVER BIODESTRUCTOR

2020 ◽  
Author(s):  
А.В. Сафонов ◽  
Е.Н. Кузин ◽  
А.Н. Арефьев ◽  
Е.Е. Кузина
Keyword(s):  
Cation Exchange ◽  
Green Manure ◽  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
Compound Action ◽  
And Chemical Properties ◽  
Hydrolytic Acidity

Интенсификация земледелия в лесостепной зоне Среднего Поволжья требует решения проблемы сохранения почвенного покрова и его потенциального и эффективного плодородия с целью повышения урожайности сельскохозяйственных культур и качества растениеводческой продукции. В связи с этим разработка и внедрение в земледельческую практику агробиологических приемов предотвращения антропогенной деградации в агроландшафтах является актуальным направлением современной аграрной науки. Цель исследований заключалась в сравнительной оценке влияния навоза, сидератов и их сочетаний с биодеструктором стерни на физико-химические свойства лугово-черноземной почвы. Для достижения поставленной цели были проведены исследования в период с 2017 по 2019 гг. в первом агропочвенном районе Пензенской области. Исследованиями установлено, что действие и последействие навоза, сидератов и их комплексное действие и последействие с биодеструктором стерни оказало положительное влияние на физико-химические свойства лугово-черноземной почвы. Сидеральные пары по эффективности влияния на емкость катионного обмена, сумму обменных оснований, величину обменной и гидролитической кислотности не уступали унавоженным парам. Более существенное влияние на изменение физико-химических свойств почвы оказало комплексное действие и последействие навоза, редьки масличной и бобовых сидератов с биодеструктором стерни. Емкость катионного обмена на их фоне увеличилась на 1,40-1,51 мг-экв./100 г почвы, сумма обменных оснований на 1,6-1,7 мг-экв./100 г почвы, величина рНсолна 0,22-0,24 ед., величина гидролитической кислотности снизилась на 0,17-0,19 мг-экв./100 г почвы. Intensification of agriculture in the forest-steppe zone of the Middle Volga region requires solving the problem of preserving the soil and its potential and effective fertility in order to increase crop productivity and quality of crop production. In this regard, the development and implementation in agricultural practice of agrobiological techniques to prevent anthropogenic degradation in agricultural landscapes is an urgent direction of modern agricultural science. The purpose of the research was to compare the effect of the implementation of manure, green manure and their combinations with the stover biodestructor on the physical and chemical properties of meadow-chernozemic soil. To reach this purpose, research was conducted in the period from 2017 to 2019 in the first agro-soil district of the Penza region. Research has shown that the effect and after-effect of manure, green manure and their compound action and after-action with the stover biodestructor had a positive effect on the physical and chemical properties of meadow-chernozemic soil. Green manure fallows were not inferior to manured fallows in terms of their effect on the cation-exchange capacity, the sum of exchange bases, and the amount of exchange and hydrolytic acidity. A compound action and after-action of manure, the oil radish and green manure of legumes with the stover biodestructor had a more significant influence on the change in the physical and chemical properties of the soil. In their background, the cation-exchange capacity increased by 1.40-1.51 mg equivalent/100 g of soil, the sum of exchange bases by 1.6-1.7 mg equivalent/100 g of soil, the value of рНКСl 0.22-0.24 units, the value of hydrolytic acidity decreased by 0.17-0.19 mg equivalent/100 g of soil.

scholarly journals Characterization and classification of soils of Northern hills Zone of Chhattisgarh, Madhya Pradesh

2021 ◽  
Vol 17 (AAEBSSD) ◽  
pp. 147-149
Author(s):  
P.N. Tripathi ◽  
U.S. Mishra ◽  
Pawan Sirothia ◽  
R.P. Singh
Keyword(s):  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Clay Content ◽  
Exchange Capacity ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Physical And Chemical ◽  
And Chemical Properties

Three representative soil pedonsof northern hills of Chhattisgarh, M.P were morphologically studied, characterized and classified. The soils are very deep, colour ranges from brown (10YR5/3) to dark brown (10YR3/3) and very dark greyish brown (10YR3/2) in different horizons. Fe and calcretes are observed in sub surface horizons. The texture in surface soils varied from clay loam to clay while in pedon 2, the texture was observed sandy clay loam throughout the profile. The soils are calcareous and pH ranged from 7.0 to 7.5. The organic carbon content in these soils were (4.4 g kg-1), low to medium (6.1 g kg-1) in surface and decreased with depth. Cation exchange capacity (CEC) were found high in horizons where clay content was more. Based on morphological, physical and chemical properties P1 and P3 were classified as VerticHaplustalfs and pedon (P2) was placed under Typic Haplustepts.

Sugarcane Biochar for Agricultural Use Produced in Different Conditions of Pyrolysis

2019 ◽  
pp. 1-8
Author(s):  
Juliany Barbosa de Pinho ◽  
Aloisio Bianchini ◽  
Pedro Silvério Xavier Pereira ◽  
Letycia Cunha Nunes ◽  
Rodrigo Fernandes Daros ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Exchange Capacity ◽  
Raw Material ◽  
Physical And Chemical Properties ◽  
Oxidizing Atmosphere ◽  
Different Temperatures ◽  
Agricultural Use ◽  
Physical And Chemical ◽  
And Chemical Properties

From the pyrolysis process, biochar is a carbon rich and recalcitrant organic material with potential for long term carbon sequestration because of its aromatic structure. However, the physical and chemical properties of the biochar vary due to the diversity of raw material and the conditions of production. The present study aimed to evaluate the biochar from the sugarcane bagasse at different temperatures and under two conditions of pyrolysis. The biochar was produced at two final temperatures 200°C (1 hour); 250°C (1h) and 250°C (2h), with pyrolysis of an oxidizing and non-oxidizing atmosphere for both. PH, cation exchange capacity (CTC), carbon content (C), Nitrogen (N), hydrogen (H), H:C, C:N and ash ratios were evaluated. The contents of C, H, N and the atomic ratios H:C and C:N were higher in Biochar produced in a non-oxidizing atmosphere (BNO). However, the content of ash, pH and CTC were higher in Biochar produced in oxidizing atmospheres (BO). One can conclude the direct influence of the pyrolysis condition.

scholarly journals Chemical properties of long-term irrigated Fluvisols of the Beli Drim river valley in the Klina region (Serbia)

2021 ◽  
Vol 70 (1) ◽  
pp. 13-26
Author(s):  
Miodrag Tolimir ◽  
Branka Kresović ◽  
Borivoj Pejić ◽  
Katarina Gajić ◽  
Angelina Tapanarova ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Humus Content ◽  
Chemical Properties ◽  
Base Cations ◽  
Exchange Capacity ◽  
Base Saturation ◽  
Basic Cations ◽  
Hydrolytic Acidity

The impact of long-term (> 100 yr) irrigation on soil chemical properties was studied on eight plots in the Beli Drim river valley in Kosovo and Metohija near Klina, Serbia. For these studies, soil samples from shallow profiles were collected from only one or two depth zones of the Ah horizon; and from moderately deep and deep profiles, from two to three depth zones for the purpose of comparing irrigated field and non-irrigated meadow lands. Water from the Beli Drim River and surface gravity systems (irrigation furrows or border strip irrigation) were used for irrigation. Chemical variables included determination of pH-H2O, content of CaCO3, content of humus, hydrolytic acidity, sum of basic cations, cation exchange capacity, and base saturation. On irrigated soils, the results of chemical analysis showed on average a small increase in pH-H2O (0.07 pH units), as well as a significant decrease in humus content (2.00-4.75%), sum of basic cations (4.98-12.98%) and cation exchange capacity (12.8%) compared to the non-irrigated land of the study area. Long-term irrigation had no effect on hydrolytic acidity and base saturation in the Ah horizon of the investigated lands. Namely, the mentioned variations in the chemical properties of the investigated soils show that slight processes of reduction in the humus content and reduction of the content of base cations occured. Data on the chemical properties of the investigated soils indicate that the destructive processes of reduction in the humus content and leaching of base cations must be controlled in order to achieve a stable sustainable system of high productivity and prevent their further deterioration.

The influence of heating temperature on the physical and chemical properties of soils with different parent materials and anthropogenic uses

2015 ◽  
Vol 5 ◽  
Author(s):  
Gabriela Sacchi ◽  
Paola Campitelli ◽  
Patricia Soria ◽  
Silvia Ceppi
Keyword(s):  
Heating Temperature ◽  
Chemical Properties ◽  
Physical Property ◽  
Exchange Capacity ◽  
Soil Parameters ◽  
Natural Environments ◽  
Physical And Chemical Properties ◽  
Parent Materials ◽  
Physical And Chemical ◽  
And Chemical Properties

Although natural and controlled fires are common in natural environments of the Province of Córdoba (Argentina), the effects on the physical and chemical soil properties are not well known. Warming effects were studied in two representative soil parent materials located in the piedmont of the Sierra Chica, Córdoba, Argentina. The aim of this study was to quantify the changes caused by different heating temperatures (100 °C and 500 °C), under laboratory conditions, on physical and chemical properties of two soils with different granulometric compositions and anthropic uses. The soils were classified as Udic Haplustoll, fine loamy (alluvial soils) and Udic Argiustoll, fine silty (loessoides soils). The depth analyzed corresponded to the upper 5 cm of the surface horizon. The physical property was granulometric composition (clay, silt and sand content) and the chemical properties: pH, oxidizable carbon (Cox), total nitrogen (Nt), cation exchange capacity (CEC), exchangeable cations (Ca<sup>+2</sup>, Mg<sup>+2</sup>, Na<sup>+</sup>, K<sup>+</sup>), extractable phosphorus (Pe) and electrical conductivity (EC). These analyses included both unheated samples (control) and those heated at different temperatures. Cox, pH, EC and CEC showed similar behavior at the different heating temperatures, despite the parent materials and the soil use conditions. Cox, pH, Nt and CEC could statistically explain the differences in edaphic properties at the temperatures analyzed. At 300 °C statistically significant differences were recorded for the analyzed soil parameters, and at 500 °C changes difficult to reverse due to the inorganic colloidal fraction collapse and the decrease (90%) of the organic fraction were found.

scholarly journals Changes of soils properties in the process of spontaneous afforestation of arable land in the territory of the Upper Dnister Beskid (Ukrainian Carpathians)

2017 ◽  
pp. 382-389
Author(s):  
Iryna Shpakivska ◽  
Ivanna Storozhuk
Keyword(s):  
Organic Matter ◽  
Chemical Elements ◽  
Arable Land ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Closed Forest ◽  
Actual Acidity ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Hydrolytic Acidity

The peculiarities soil transformation of stages of the spontaneous afforestation in the Upper Dnister Beskid region were evaluated. The afforestation ecosystems represented series of restoration succession of forest ecosystems: arable land → ruderal stage → grassland stage → shrub stage → closed forest. The changes of the basic physical and chemical properties of the brown soils of the Upper Dniester Beskid of different stages of the afforestation within the transect of v. Gvozdenec and v. Topilnytca (Starosambirsky district of the Lviv region) were investigated. It was established that the process of spontaneous afforestation of arable land on the territory of the Upper Dniester Beskid causes an increase in actual, potential and hydrolytic acidity in the direction from the arable land to the closed forest, as well as an increase in the amount of organic matter in the forest soils compared with the arable land. Want of agricultural cultivation of the territory and the process of spontaneous afforestation an increase in the content of organic acids and salts, in particular carbon (H2CO3), in the upper horizons of the soil, which leads to changes in the actual acidity in the soil profi le. In the direction from the arable land to the closed forest there are increases in the actual acidity. Spontaneous afforestation, especially due to coniferous trees, causes a change in the amount of hydrogen and aluminum in the soil solution. The upper humus horizons had higher hydrolytic acidity than humus transitions horizons, which is related plants fall on the soil surface and the redistribution of chemical elements in the soil profile. In post-arable soils, the amount of organic carbon increases due to want of organic fertilization with the economic part of the crops and its annual input from plant fallout. It was established that the arable plots content of organic matter is 2,97–3,32 % in forest areas – 4,02–4,30 %. Key words: brown soils, physical and chemical properties, afforestation, Upper Dnister Beskid.

scholarly journals Chemical, Mineralogical, and Rheological Characterization of Regional Clays for Potential Use in Cosmetics and Pharmaceutical Products

2021 ◽  
Author(s):  
Cochiran Pereira dos Santos ◽  
Adriana de Jesus Santos
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Pharmaceutical Products ◽  
Exchange Capacity ◽  
Added Value ◽  
Rheological Characterization ◽  
X Ray ◽  
Physical And Chemical ◽  
Potential Use

Four clay samples from different deposits in the state of Sergipe, Brazil, were fractionated by dispersion and centrifugation for comparative tests with a standard commercial clay used for cosmetic and pharmaceutical purposes. For this, they were characterized by X-ray diffraction, X-ray fluorescence spectroscopy, measurements of cation exchange capacity, oil absorption and viscosity, in addition to particle sizes and plasticity indexes. The objective was to determine the physical and chemical properties of raw clays and the consequent granulometric fractions to evaluate their potential use in products with high added value. After fractionation, the samples showed significant amounts of smectite and kaolinite, which combined with the size, particle distribution, chemical composition, and high adsorption capacity, especially in the PDL and PV samples, make them potentially interesting for applications in pharmaceutical and cosmetic products, they can also be used in spas and esthetic centers for therapeutic purposes based on their softness and cation exchange capacity.

scholarly journals Effects of land use changes on the dynamics of selected soil properties in northeast Wellega, Ethiopia

SOIL ◽  
2016 ◽  
Vol 2 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Alemayehu Adugna ◽  
Assefa Abegaz
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Soil Properties ◽  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Cultivated Land ◽  
Grazing Land ◽  
Physical And Chemical

Abstract. Land use change can have negative or positive effects on soil quality. Our objective was to assess the effects of land uses changes on the dynamics of selected soil physical and chemical properties. Soil samples were collected from three adjacent soil plots under different land uses, namely forestland, grazing land, and cultivated land at 0–15 cm depth. Changes in soil properties on cultivated and grazing land were computed and compared to forestland, and ANOVA (analysis of variance) was used to test the significance of the changes. Sand and silt proportions, soil organic content, total nitrogen content, acidity, cation exchange capacity, and exchangeable Ca2+ content were higher in forestlands. Exchangeable Mg2+ was highest in grazing land, while clay, available phosphorous, and exchangeable K+ were highest in cultivated land. The percentage changes in sand, clay, soil organic matter, cation exchange capacity, and exchangeable Ca2+ and Mg2+ were higher in cultivated land than in grazing land and forestland. In terms of the relation between soil properties, soil organic matter, total nitrogen, cation exchange capacity, and exchangeable Ca2+ were strongly positively correlated with most of soil properties, while available phosphorous and silt have no significant relationship with any of the other considered soil properties. Clay has a negative correlation with all soil properties. Generally, cultivated land has the least concentration of soil physical and chemical properties except clay and available phosphorous, which suggests an increasing degradation rate in soils of cultivated land. So as to increase soil organic matter and other nutrients in the soil of cultivated land, the integrated implementation of land management through compost, cover crops, manures, minimum tillage, crop rotation, and liming to decrease soil acidity are suggested.

Study of Strata Sloughing Mechanism and Anti-Sloughing Measures with Mechanics Properties and Material Properties in Yitong Area

2012 ◽  
Vol 252 ◽  
pp. 120-124
Author(s):  
Yu Xue Sun ◽  
Ze Hua Wang ◽  
Hai Min Shi ◽  
Jiu Zhou Sun
Keyword(s):  
Water Absorption ◽  
Inflation Rate ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Physical And Chemical Properties ◽  
Total Water ◽  
Wellbore Instability ◽  
Shale Recovery ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract. As there are serious wellbore instability problems in Yitong area, studying sloughing mechanism and anti-sloughing measures of the strata is of great importance, which differs significantly from the previous researches. Based on the international state-of-the-art, in this work several points are focused on which include the appearance characteristics of the cores, rock mineral composition and the shale physical and chemical properties. Sloughing mechanism is classified and anti-sloughing measures of the strata in Yitong area are proposed. When testing shale physical and chemical properties, several parameters are mainly tested and analyzed, including cation exchange capacity, specific water absorption, shale recovery rate and shale inflation rate. Five core samples are selected and collated data is reflected in tables in the experiment. It is worth mentioning that a new method of specific water absorption is adopted in the study to explain wellbore instability problems, which are caused by hydration. Limitations and shortcomings have been overcome by specific water absorption instead of total water absorption when evaluating water sensibility. The test shows satisfying and excellent results. After applying the anti-sloughing measures to the strata in Yitong area, sloughing accidents have been alleviated.

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