Matric Potential Articles & Analysis
13 articles found
Despite its widespread acceptance, LAL has limitations, including potential interference from sample matrices and reliance on animal-derived reagents. ...
The measurements being made include continuous flow rate, evapotranspiration, soil water storage, and matric potential. The flow rate is measured with a combination of 45° stainless steel v-notch weirs and Stevens SDX pressure transducers. ...
This course will focus on the science of the analytical measurements of soil water content and water potential. From an “applications in the field” perspective to a more theoretical approach, this course provides tools, information, and insight for users of soil moisture sensors and soil moisture data, with a focus on the HydraProbe. ...
Recent Activities in Soil Physics The CEPHaS project is a joint undertaking between colleagues in Zambia, Zimbabwe, Malawi and the UK to strengthen our shared capacity to study how conservation agriculture practices affect the behaviour of water in soil, crop and groundwater systems. Key to this is the use of new methods to study soil water, both in the field and the laboratory. The University ...
The use of GC/MS/MS MRM mode provides enhanced selectivity, specificity and sensitivity in complex matrices with potential co-eluting interferences. This paper presents all instrument operating conditions and instrument method performance statistics, including method linearity, accuracy, precision, and instrument detection limits for all ...
This paper reviews the usefulness and limitations of non–invasively collected matrices as well as common and novel biomarkers of effect for evaluating the impact of environmental exposure to pesticides in periods of high susceptibility to toxicants. We conclude that in the prenatal period, placenta and umbilical cord blood are matrices with vast ...
The Stevens pF Sensor is a unique matric potential probe, which is used to measure the soil water potential of a soil - the force with which water is held within the soil and how much energy is needed to overcome this force to extract water from the soil. ...
The IAs examined in this study did not release appreciable amounts of internally held water until they were exposed to matric potentials more negative than usual in turfgrass management (<–300 J kg–1). ...
Daytime irrigation caused a 10% reduction in maize grain yield, mostly due to a reduction in biomass production. The lower soil matric potential found with daytime irrigation late in the season indicated that a progressive water stress occurred that was due to less water availability and was caused by the higher WDEL for daytime irrigation. ...
Prior research has shown a log–log correlation between ex situ air permeability (ka) measured at a matric potential of –50 and –100 cm H2O and saturated hydraulic conductivity (Ksat) in agricultural soils. ...
The thickness of the liquid film at the surface of the plate is set by imposing suction, corresponding to soil matric potential, to the liquid medium. The utility of the PSM was demonstrated using Pseudomonas putida KT2440 tagged with gfp as a model bacterium. Single cells were inoculated at the surface of the PSM, and the rate at which colonies expanded ...
The analysis on the hydraulic functioning of paddy soil revealed that the hard pan layer was the key factor controlling percolation rate and tracer transport. Matric potential and tracer monitoring highlighted the evolution of saturated hydraulic conductivity (KS) of hard pan layer during the crop season. ...
Standard tensiometers are used to measure matric potential as low as -870 cm of water in the unsaturated zone by creating a saturated hydraulic link between the soil water and a pressure sensor. ...