matric potential
Salt leaching of heavy coastal saline silty soil by controlling the soil matric potential
... Soil matric potential (SMP) is a measure of the water holding capacity of soil and it is a critical variable in crop yield, runoff, erosion, evapotranspiration and irrigation scheduling (Kang & Wan ...
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Influence of Matric Potential on Survival and Activity of Genetically Engineered Ralstonia eutropha H850Lr
... at matric potential −30 kPa ...at matric potential −750 kPa and −1500 kPa which was greater than −30 kPa and lower than that at ...both matric potential (−1500 kPa and −750 kPa) ...
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Prediction of biopore and matrix dominated flow from X ray CT derived macropore network characteristics
... for potential risks of ground water contamination, is widely recognized (Iversen et ...the matric potential needs to be close to 0 and the water content close to saturation for these pores to be ...
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Surface shear resistance of soils on the micro- to mesoscale
... in matric potential does not result in a significant change in the shear stress while an increase in normal stress results in higher shear stress values ...two matric potentials: -30 and -300 hPa, ...
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Procedure to control hydraulic potential variation in soil microcosms
... where matric potential is not ...actual matric potential and considerable spatial and tempo- ral heterogeneity in the water regime within and between ...water potential constantly du- ...
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Irrigation Decisions Simplified with Electronics and Soil Water Sensors
... where T is the soil water suction, i.e., the negative matric potential in kPa, R is the resistance of the block, t the days since the last irrigation or rain, At the number of days[r] ...
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Performance of Hydra Probe and MPS 1 Soil Water Sensors in Topsoil Tested in Lab and Field
... of matric potential values is from −10 to −500 ...of matric potential in the field were major with an opposite trend to water ...and matric poten- tial were typically represented by ...
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Scheduling Irrigation Using Automatic Tensiometers for Pea Crop
... The experimental design included twelve treatments: Four Irrigation Scheduling [Irrigation using automatic tensiometers were (85 % of F.C. under equivalent to soil matric potential 0.7 bar, 75 % of F.C. ...
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Magnetic Treatment Reduces Water Usage in Irrigation Without Negatively Impacting Yield, Photosynthesis and Nutrient Uptake in Lettuce
... soil matric potential for T100 and C100 groups was ...metric potential between control and treated groups ...soil matric potential for the T70 and C70 group was ...soil matric ...
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Nonstationarity of the electrical resistivity and soil moisture relationship in a heterogeneous soil system: a case study
... Understanding the role of vegetation in the interface be- tween the atmosphere and groundwater is the most decisive key for analyzing the processes involved in water transfer. The main impact of vegetation is root water ...
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Parametric soil water retention models: a critical evaluation of expressions for the full moisture range
... a matric potential at which the pore fills or empties; and (5) use the soil water re- tention curve to convert from a dependence upon the matric potential to a dependence upon the water ...
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Standardization of Growbag Media with Nutriseed Pack Fertilization for Tomato Crop Under Matric Suction Irrigation
... by matric suction ...for Matric Suction Irrigation Matric suction arises due to interaction of water with the matrix of solid ...content, matric suction decreases and water is more prone to ...
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Soil Oxygen and Moisture in Relation to Russet Burbank Potato Yield and Quality
... The relation between soil oxygen diffusion rate and daily observations of soil water matric potential measured at the 30 and 40 cm depths in Declo loam soil during the field pro- duction[r] ...
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EFFECTS OF OSMOTIC AND MATRIC POTENTIALS ON Pyrenophora tritici-repentis
... and matric (ψm) potentials decreased ...and matric potentials used in this ...and matric stresses rather than by toxicity of KCl or PEG 8000 (Ferrin and Stanghellini, ...water potential ...
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Polymer tensiometers with ceramic cones: direct observations of matric pressures in drying soils
... Abstract. Measuring soil water potentials is crucial to char- acterize vadose zone processes. Conventional tensiometers only measure until approximately − 0.09 MPa, and indirect methods may suffer from the non-uniqueness ...
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Water Potential in HillField Side Slope in Ireland
... water potential towards the lower one. Assuming no change in osmotic potential, the total water potential at any point is the algebraic sum of matric potential at that point and its ...
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Scaling the hydraulic functions of a water repellent sandy soil
... The matric po- tentials at the beginning were too low, so that the values quickly exceeded the measurement range of the tensio- ...at matric potentials of -100, -150, -200, -250, -300 and -350 cm were ...
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Updated European hydraulic pedotransfer functions with communicated uncertainties in the predicted variables (euptfv2)
... Information on the uncertainty of the predicted soil hydraulic properties is important for modelling the state and flux of water in soil. The source of prediction uncertainty can be threefold: it can stem from the i) ...
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The Usefulness of Water Potential Measurements in Soil and Related Media
... where (4 is the flux of water, K the hydraulic or capil- lary conductivity, tit., the matric potential (in cm water), 0, is the gravitational potential (cm water), and z the depth: Two t[r] ...
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Water supply and not nitrate concentration determines primary root growth in Arabidopsis
... mm. Matric potential was adjusted by altering the difference in height between the sand culture and the level of the nutrient solution reservoir in the aspira- tor bottle (see ...three matric ...
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