soil analysis system Articles
-
Impact of organic residues on soil microorganisms
It is well known that organic residue amendments to soil give beneficial effects such as provision of plant nutrients, increased humus content and thereby increased water holding capacity, improved structure and increased cation exchange capacity. Organic wastes can be a valuable fertiliser in terms of phosphorous. Chemical precipitation in the sewage treatment plant makes sewage sludge rich in ...
By ORBIT e.V.
-
Quinta Field Study Centre - Case Study
The Quinta de Sao Pedro Field Study Centre in Portugal is visited by many of Europe’s leading Universities. A Delta-T Devices weather station system – complete with soil moisture monitoring and solar radiation analysis provides reference data for the Centre, and is linked to the DeltaLINK-Cloud platform for immediate remote data ...
-
Spatial interpolation of cadmium contamination of agricultural soils in Changhua County, Taiwan
A robust spatial model to interpolate topsoil cadmium concentrations monitored by Taiwan EPA was constructed for assessment of health risks posed by this contamination in Changhua County, Taiwan. kriging methods, using a Geographic Information Systems (GIS), were used to estimate the range and severity of topsoil contamination. Optimised Kriging models and geostatistical analyses revealed that ...
-
Calibrating Gasoline Range Organics (GROs) using an automated dilution scheme with the Atomx Concentrator/Multimatrix Autosampler
Abstract In developing the Atomx Automated Sample Prep System, Teledyne Tekmar integrated both a P&T concentrator and a multi-matrix autosampler into a single platform system that can be used in the analysis of soil, water, and soils requiring methanol extraction. This “all-in-one” setup has allowed for greatly increased throughput and efficiency through the built in features it ...
-
A Novel Approach to Increase Sample Throughput on a CVAA Mercury Analyzer using an Injection Valve
ABSTRACT Mercury determination in soil plays a crucial role in agri‐ culture, environmental status, and human health. The de‐ tection of mercury allows for long‐term and short‐term analysis of each of these systems, and it gives information on specific sources of mercury contamination. The analysis of soil yields quantitative data for water quality, air quali‐ ty, ...
-
Stevens Water and US Farm Bill helps farmers optimize crop irrigation & fertilization - Case Study
Agriculture is a major element for survival of the human race and of the economic system. 42 percent of the world’s laborers are employed in agriculture, making it by far the most common occupation. With agriculture using approximately 60 percent of available freshwater withdrawals, concerns continue to grow over farmers implementing water conservation practices. ...
-
Levee body seepage: a refinement of an expeditious procedure for fragility curves and vulnerability diagrams’ assessment
Extensive flooding can be the result of levee system failures most frequently caused by the piping process due to seepage. The proper description of the seepage line is affected by the difficulty of estimating the hydraulic parameters, mainly the soil hydraulic conductivity. Therefore, the development of simple methods for a quick analysis of extended levee systems is fundamental to identify ...
-
Determining Volatile Organic Compounds from Difficult Soil Matrices Utilizing both Headspace and Purge and Trap Techniques
Abstract Purge and Trap concentration (P&T) along with Gas Chromatography/Mass Spectrometry (GC/MS) analysis is the traditionally used method for the analysis of Volatile Organic Compounds (VOCs). This application note investigates P&T concentration of VOCs in soils utilizing both the standard soil and the automated methanol extraction technique of Teledyne Tekmar’s Atomx, a ...
-
Adaptation to climate change impacts on crop water requirements in Kikafu catchment, Tanzania
Agricultural activities are the main livelihood for about 70% of Tanzania's population, with women being the main players. Crops need water (crop water requirements, CWRs) for their growth and production, which can either be rain-fed or irrigation sourced. However, climate change has affected the hydrological cycle, particularly water available for agricultural crops. Since impacts and ...
-
Reduction of high soil test phosphorus by bermudagrass and ryegrass–bermudagrass following the cessation of broiler litter applications
Factors that contribute to high soil P in bermudagrass [Cynodon dactylon L. (Pers.)] pastures include continued use of broiler litter rich in P to meet forage N requirements and removal of hay in summer only. This study determined if harvesting annual ryegrass (Lolium multiflorum Lam.) in addition to bermudagrass would reduce surplus soil P, Cu, and Zn faster than bermudagrass alone after litter ...
-
Soil degradation, landscape and climate variations in a Mediterranean agro–forest system (Thriasio, Greece): proposal for a desertification indicator using time series analysis
As a contribution to soil degradation and desertification monitoring in the northern Mediterranean basin, the present study investigates long–term climate variations in the traditional agro–forest system of Thriasio Plain (Greece) by examining month average temperature, precipitation, relative humidity, Standardised Precipitation Index (SPI) and de Martonne index time series between 1958 and ...
-
Analysis of Volatile Organic Compounds in Water and Soil by EPA Method 8260 with the Atomx Concentrator/Multimatrix Autosampler
Abstract In order to determine the amount of Volatile Organic Compounds (VOCs) in water and soil matrices the USEPA developed Method 8260 in conjunction with preparative Method 5030 and 50351 . Since this method encompasses a wide range of matrices with an extensive range of concentration limits for VOCs, it is necessary to have an analytical system that is sensitive for enough for the lower ...
-
Assessment of cement’s dust impact on the soil using principal component analysis and GIS
To evaluate the impact of the cement’s dust emitted by the eastern Moroccan cement factory (Oujda Holcim) and deposited on the soil of the Ain Lahjar commune, 58 samples of soil were collected around the factory on a radius of 3 km approximately. The physicochemical analyses of the upper 3 cm of the soil surface samples correspond to the pH, electrical conductivity, the chlorides and the oxides ...
-
Soil pH sensor: Agriculture and Environmental Management
In recent years, the development of the soil pH sensor change the way that the soil pH monitoring. Provide real-time data to enable farmers to optimize land management practices.This article explores the significance of soil pH sensors, their key features and capabilities, the benefits and applications they offer, as well as the challenges and future directions in this field. Significance of Soil ...
-
Evaluation of the relative roles of a vegetative filter strip and a biofiltration swale in a treatment train for road runoff
In order to determine the relative importance of a vegetative filter strip and a biofiltration swale in a treatment train for road runoff, US EPA Storm Water Management Model was used to model infiltration and runoff from the filter strip. The model consisted of a series of subcatchments representing the road, the filter strip and the side-slopes of the swale. Simulations were carried out for ...
-
A General Dynamic Model for the Resonant Column/Quasi-Static Torsional Shear Apparatus
A new model is proposed that allows for more general boundary conditions at both the active and passive ends of resonant column apparatus, especially those incorporated within the resonant column/quasi-static torsional shear devices. The improved three-degree-of-freedom model can be used in order to obtain more accurate measurements of the dynamic properties of tested soils when the base and the ...
-
Impact–based cost–benefit analysis model for management of crude oil contaminated agricultural soil
Evaluating the compensation payable to farmers whose farms/farmlands have been rendered unproductive due to oil spill requires adequate scientific research and improved decision–making. This work proposes a bacterial–based mathematical framework as a decision–support system for evaluating crude oil spill impact on agricultural soil. The rate of 'in situ' biodegradation of the crude oil predicts ...
-
Material flows analysis of construction aggregates in Taiwan
Recent decades of economic and industrial development have accelerated the demand for and use of construction aggregates in Taiwan. Material Flows Analysis (MFA), the most common analysis tool of the scientific field of industrial ecology, was employed in this study. The study calculated, within a decade period, the deposits, domestic production, demand, import, export, per capita and per unit ...
-
Remote sensing and GIS based assessment of soil erosion and soil loss risk around hill top surface mines situated in Saranda Forest, Jharkhand
The quantitative analysis of soil erosion changes over 7 years due to mining operations in two neighboring hilltops in West-Singhbhum District, Jharkhand, are reported. CartoSat-1, ETM+ and LISS-IV satellites' data provided spatial inputs in Universal Soil Loss Equation (USLE) and Morgan, Morgan and Finney method (MMF) models, which were used to predict the average annual soil erosion during ...
-
Thermal Desorption-GC/MS Analysis of polycyclic aromatic hydrocarbons on fine particulates in air
Polycyclic aromatic hydrocarbons (PAHs) are commonly found throughout the environment in soil, water and adsorbed to fine particulate matter in air. Of the 16 common PAHs, 7 have been classified as animal carcinogens by the International Agency for Research on Cancer (IARC). Resulting from this classification, PAHs are monitored and regulated in the environment. Analysis of PAHs in soil and water ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you