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Soil parameters
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Part 2 of ebook "Critical state soil mechanics" provides readers with contents including: Chapter 6 - Cam-clay and the critical state concept; Chapter 7 - Interpretation of data from axial tests on saturated clays; Chapter 8 - Coulomb’s failure equation and the choice of strength parameters; Chapter 9 - Two-dimensional fields of limiting stress; Chapter 10 - Conclusion;...
126p
giangdongdinh
28-05-2024
3
2
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By analyzing some soil chemical properties such as: SOC content, macronutrients, ion mobilized Fe, this paper will focus on: (1) description of soil chemical properties at different soil horizons under two forest types; (2) analyzing differences of those soil properties and (3) analyzing the correlation between investigated soil parameters in Kon Ka Kinh National Park, Central Highlands, Vietnam.
10p
visergey
14-03-2024
2
1
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Ebook "Chemical elements in plants and soil: Parameters controlling essentiality (Tasks for vegetation science, Volume 45)" will have worldwide appeal for researchers interested in fields such as soil/plant interactions, bioinorganic chemistry, plant nutrition, phytomining, bioremediation, biogeochemistry, nutrient cycling, soil chemistry, and cellular physiology.
200p
manmanthanhla0201
26-02-2024
3
1
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This study aims to evaluate the effect of different fertilizers on the growth and essential oil productivity of coriander and sand ginger in Vietnam. Nutritional parameters including total N, total P, total K, humus and organic matter concentrations of the cultivated soil samples were suitable for the growth and development of crops.
8p
vialfrednobel
21-12-2023
6
2
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In this study, the Machine Learning (ML) approach has been adopted using Random Forest (RF) model to estimate the CBR of the soil based on 10 input parameters such as Plasticity Index (PI), Liquid Limit (LL), Silt Clay content (SC), Fine Sand content (FS), Coarse sand content (CS), Optimum Water Content (OWC), Organic content (O), Plastic Limit (PL), Gravel content (G), and Maximum Dry Density (MDD), which can be easily determined in the laboratory.
14p
visharma
20-10-2023
8
4
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The objective of this study was to evaluate the effects of land preparation methods and iron-coated (Fe-coated) rice seeds on the growth, yield, and Fe uptake of rice in alluvial soils in the Mekong Delta region. The experiment was conducted in the 2020 summerautumn cropping season under the triple rice cultivation system in Chau Thanh district, An Giang province.
10p
viengels
25-08-2023
4
2
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Suffusion is one of the four types of internal erosion and accounts for 46% of erosion phenomena in earth dams. Suffusion is an erosion of fine particles inside the soil structure that move out of the voids between coarse particles caused by permeability flow. Identification of internal erosion is necessary to mitigate the loss of humans and property as underground erosion occurs.
6p
viwarmachine
01-07-2023
4
3
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The indicators of climate change in Central Europe, Hungary is showing a trend of decrease in rainfall, increase in temperature and especially extreme weather that is becoming more usual and unpredictable. The current study presents the application of the MIKE SHE model to examine the role of unsaturated soil settings and the effects of climate change on various hydrological parameters and water balance components.
18p
viironman
02-06-2023
5
2
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The study "Characterization of arbuscular mycorrhizal fungal communities associated with vineyards in northwestern Iran" was aimed to investigate AMF spore density, species composition, mycorrhizal colonization patterns, and correlation of these indices with soil physicochemical parameters at four vineyards located in one of the most important grape-producing regions of Iran (West Azerbaijan province).
9p
lyhuyenthu
31-01-2023
5
2
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The study "Biochar mitigates salt stress by regulating nutrient uptake and antioxidant activity, alleviating the oxidative stress and abscisic acid content in cabbage seedlings" was conducted as factorial completely randomized design with two factors; salinity levels (0 and 150 mM NaCl) and biochar doses (weighed at the rate of 0%, 2.5%, and 5% by soil weight). Growth parameters such as stem diameter, leaf area, shoot fresh weight, root fresh weight, shoot dry weight, and root dry weight of cabbage seedlings treated with 150 mM NaCl were lower than the control.
10p
lyhuyenthu
31-01-2023
6
2
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This paper presents the results of the parameter sensitivity assessment of the DNDC (Denitrification - Decomposition: Decomposition - Denitrification) model when calculating N2O greenhouse gas emissions from maize cultivation.
10p
viwmotors
13-12-2022
16
2
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Multivariate techniques were used to evaluate the relationships among measured parameters. Results showed that the 1st three principal components consisting of soil-types, soil-metal(loids) and soil-pH explained 83% of total variance of both grain-As and Cd accumulation.
11p
thebadguys
15-01-2022
14
1
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Moringa seeds were cultivated in polyethylene bags (1 kg capacity) filled with clay loamy soil. Bags were treated with microorganisms using three methods of inoculation i.e. soil inoculation (single or mixed cultures); leaf inoculation (single culture), and soil and leaf inoculation (mixed inoculation).
10p
schindler
30-12-2021
16
1
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Results revealed that different biofertilizer treatments increased the microbial counts (total microbial counts, azotobacter, azospirilla, phosphate dissolving bacteria (PDB) and VAM), the growth parameters (plant height, stem diameter, initiative branching point, number of branches, fresh weight and dry weight) and some chemical constituents such as total chlorophyll, crude protein, crude fiber and ash% compared to untreated plants.
10p
schindler
30-12-2021
15
0
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Evaluation of the spatial distribution of 2 ecologically similar, but different, in terms of their spatial ranges, earthworm species, D. octaedra and D. attemsi, in the belt forests of northwestern Caucasus were based on our own natural data and using geographic information system (GIS) modeling of modern potential distributions. The quantitative records of earthworms were collected in beech, deciduous, dark coniferous, coniferous-deciduous, and pine forests (1028 geographic locations).
10p
dolomite36
30-12-2021
6
0
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Nesting water bird colonies may act as important drivers of aquatic-terrestrial nutrient turnover in coastal ecosystems. By depositing a large amount of guano, they induce changes in the structure of soils, flora, and fauna. However, little is known about how nesting water bird colonies influence soil fauna, especially in a Mediterranean type of coastal landscape.
9p
dolomite36
30-12-2021
8
0
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The low level of BC at 2% individually or in combination with SWE treatments has more promotion effect on the most of growth parameters and yield components and achieved the highest concentrations on the most of macro- and micronutrients in roots, leaves and grains as compared with the control in both seasons.
9p
schindler
30-12-2021
27
0
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The present study evaluated the effect of different colored plastic mulching viz. olive polythene film (OPF), silver polythene film (SPF), white polythene film (WPF), black polythene film (BPF) and blue polythene film (BLPF) on soil properties, growth, physiology, biochemical and mineral nutrient composition in onion bulbs. Soil properties at 0–10 cm depth are variably affected by colored polythene film mulches.
8p
schindler
30-12-2021
10
0
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A supramolecular solvent microextraction procedure was established for the separation/preconcentration of uranium(VI) (U(VI)) prior to its determination by UV-Vis spectrophotometry. 1-(2-Pyridylazo)-2-naphthol (PAN) was used to form a red chelate (U-PAN) with U(VI) at pH 10. U-PAN was extracted by undecanol in tetrahydrofuran. All the parameters that affect extraction efficiency like solution pH, amount of ligand, type and volume of supramolecular solvent, sample volume, and diverse ion effect were optimized.
9p
langthannam
29-12-2021
4
0
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An alternative rapid digestion method has been developed for the determination of tungsten (W) in soil samples using fractionation studies and response surface methodology. The digestion method using the Kjeldahl instrument was applied to samples, and soluble tungsten was determined via inductively coupled plasma mass spectrometry. Digestion parameters were selected depending on the results of fractionation studies and optimized using a four-factor and five-level central composite design.
16p
langthannam
29-12-2021
15
0
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