Results 171 to 180 of about 2,301 (219)
Effect of Soil Matric Potential on Urea Hydrolysis
Soil Science Society of America Journal, 2014 Soil water availability affects NH 3 loss from surface applied urea, partly due to its influence on urea hydrolysis rates. However, the quantitative effects of soil water on hydrolysis rates are not well understood.
Fernando O. Garcia +2 more
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A New Resistance Sensor for Monitoring Soil Matric Potential
Soil Science Society of America Journal, 2007 The electrical resistance sensor is an appropriate and inexpensive tool for measuring soil matric potential (ψ). These sensors are widely used in irrigation agriculture. One drawback of the resistance sensors, however, is that the measurements often are not accurate across a wide range of moisture conditions. The objective of this study was to design a
X. L. Xin +3 more
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Quantifying Coupling Effects Between Soil Matric Potential and Osmotic Potential
Water Resources Research, 2023AbstractSoil matric potential and osmotic potential are widely accepted as two independent components of total soil water potential. However, laboratory observations repeatedly demonstrated that matric potential can vary with salt concentration, implying a potential coupling between matric potential and osmotic potential.
Shaojie Hu, Chao Zhang, Ning Lu
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Changes in the Matric Potential of Soil Water With Time and Temperature
Soil Science, 2010The temperature dependence of the matric potential of soil water was investigated as part of a study of the effects of climate change on soil physical properties. Undisturbed samples of topsoils were collected in cylinders. The pore water suction near the center of each cylinder was measured using two miniature tensiometers.
Dexter, Anthony +3 more
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Influence of Soil Bulk Density on Matric Potential
Soil Science Society of America Journal, 1962Abstract Unsaturated soil samples were compressed at three different moisture contents and temperatures to evaluate these interrelations with soil moisture matric potential. It was found that in all cases increasing bulk density, at constant moisture content and temperature, resulted in an increase in soil moisture matric potential ...
James E. Box, S. A. Taylor
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Solute Diffusivity in Undisturbed Soil: Effects of Soil Water Content and Matric Potential
Soil Science Society of America Journal, 2012Solute diffusivity in soil plays a major role in many important processes with relation to plant growth and environmental issues. Soil solute diffusivity is affected by the volumetric water content as well as the morphological characteristics of water‐filled pores.
Lægdsmand, Mette +2 more
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An implicit model for soil thermal conductivity and matric potential
2021<p>Soil thermal conductivity (&#955;) is affected by the energy status of water and is closely related to soil matric potential (h). In this study, a soil water retention curve and a soil thermal conductivity curve were linked via the critical point that separated the adsorption water and capillary water regimes. Based on existing
Yili Lu +3 more
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The Influence of Soil Water Matric Potential on the Strength Properties of Unsaturated Soil
Soil Science Society of America Journal, 1970Abstract A study was made of the contribution that matric potential makes to effective stress and therefore the strength properties of two unsaturated soils. From an evaluation of the effective stress parameters C ' and ø', and the unconfined strength, the shear strength ...
John Williams, C. F. Shaykewich
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Effect of soil matric potential on tomato yield and water use under drip irrigation condition
Agricultural Water Management, 2007 Field experiment was carried out to investigate the effect of soil matric potential (SMP) on tomato yield, evapotranspiration (ET), water use efficiency (WUE) and irrigation water use efficiency (IWUE) under drip irrigation condition in North China Plain.
Yaohu Kang
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Soil Water Matric Potential Effects on Aggregate Stability
Soil Science Society of America Journal, 1983Abstract The effect of soil water matric potential (ψ m ) is not considered with most techniques utilized to evaluate aggregate stability. Rather, aggregate stability usually is measured at ψ
P. B. Francis, R. M. Cruse
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