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</center><p>These soils include texture classes of fine sand, fine sandy loam, loam, silt loam, silty clay loam and clay loam. Where f is porosity, Ps is particle density, and Pb is bulk density This paper provides the verification of coefficients for the calculation of particle density, bulk density, and total porosity based on the texture of soils proposed by Brogowski (). z. The bulk density of normal soils range between to g ccwith an average of g ccTwo factors must be known about a soil before its porosity can be calculated: bulk density and particle density (Figure 1). The particle density of most mineral soils lies between and g cmThe range is Bulk density measurements indifferent fields across Oklahoma at, and cm depth. Bulk density = mass solids volume xyz. Particle density is a measure of the mass of soil solids per given volume (g/cm3); however, pore space is not included as it is with bulk density. Particle density is an indicator of soil mineral composition and is needed to calculate related parameters such as porosity The particle density of most mineral soils lies between and g cmThe range is fairly naarrow because common soil minerals differ little in density Bulk density measures the mass of the soil solids in relation to the volume of the soil solids and the soil pores. Particle Density Bulk density measures the mass of the soil solids in relation to the volume of the soil solids and the soil pores. y. FigureIllustration of the difference between bulk density and particle density by Plant and Soil Science eLibrary used with written consent A Particle Density Soil particle density (g cm3) is mass of soil solids (oven-dry) per unit volume of soil solids. Particle density is similar  Particle and bulk density are measurable soil properties. x y z Particle density = Mass of particle Volume of particle No pores The B.D. ranges between and g/cm(for mineral soil with– 5% organic matter) BD = mass OD soil volume solids + pores Bulk vs. x. Mass of particle density of a soil is always smaller than its particle density. Particle density depends on the densities of the various constituent solids and their relative abundance.</p></translate>
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