Soil and Environmental Analysis: Physical Methods - Chapter 2 doc

... wide-range gravi- metric method for measuring stress. Soil Sci. 106 :22 5 23 1. Merrill, S. D., and S. L. Rawlins. 19 72. Field measurement of soil water potential with thermocouple psychrometers. Soil ... Soil Sci. Soc. Am. Proc. 33:196 20 2. Pereira, H. C. 1951. A cylindrical gypsum block for moisture studies in deep soils. J. Soil Sci. 2: 2 12 22 3. Perrier, E. R., and A. W....

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... (B) Plasticity index 76 .2 73.7 5615 12. 8 95.0 17.6 16 72 11 .2 19.0 65.9 125 2 10.3 60.5 40.4 24 44 8.8 48.0 38.5 1848 8.1 29 .2 26.8 7 82 6 .2 26.8 19.4 519 5.1 1.4 52. 2 73 3.6 Copyright © 20 00 Marcel Dekker, ... topsoils using a drop-cone pene- trometer. J. Soil Sci. 26 :23 4 24 0. Campbell, D. J. 1976a. The occurrence and prediction of clods in potato ridges in relation t...

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... Eng., pp. 29 6 29 7. Anderson, G., J. D. Pidgeon, H. B. Spencer, and R. Parks. 1980. A new hand-held recording penetrometer for soil studies. J. Soil Sci. 31 : 27 9 29 6. Ball, B. C., and M. F. ... Reference Remolded sandy loam 1 Parabolic probe 1 4 – 8 12 Eavis (1967) Remolded sandy loam 3 30 0.17 4.5– 6 2 Stolzy and Barley (1968) Sandy loam, remolded cores and un- disturbed...

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... moisture equivalent of soils, and the role of soil colloids on this moisture equivalent. Soil Sci. 27 :23 3 24 1. Briggs, L. J., and McLane, J. W. 1907. The moisture equivalent of soils. Bur. Soils Bull. No. ... velocity and the dis- tances of the water table and sample from the center of rotation, given by 22 2 r Ϫ rw 21 log h ϭ log · (2) ͩͪ 10 10 2 g where h is the suctio...

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... 15.8 21 .0 21 .5 22 .2 24.1 26 .8 31.5 ϱ 8.0 20 26 .9 26 .3 25 .5 24 .0 23 .0 22 .2 21.4 26 .9 29 .6 30.6 32. 9 36.1 40.6 ϱ 16 27 .4 26 .6 25 .8 24 .4 23 .4 22 .7 21 .9 27 .4 29 .8 30.8 33.1 36 .2 40.7 ϱ 12 28.3 27 .2 26.4 ... 17.5 16.4 15.8 15.5 15.5 15.4 15 .2 14.6 0.75 22 .2 21.0 20 .2 19.1 18.0 17.4 17 .2 17 .2 17.1 16.8 16 .2 0.5 27 .0 25 .9 24 .9...

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... Veaux and Steele (1989) demonstrated the procedure using data for a Mana- watu sandy loam (Clothier and Scotter, 19 82) and found F[u] ϭ u 3 and G[t] ϭ e t , a ϭ 4.48 ϫ 10 2 and b ϭϪ1 .20 ϫ 10 Ϫ4 . ... Standard for soil laboratory 4. General-purpose, off-the-shelf 3. Easily made in average machine shop 2. Special-purpose, off-the-shelf 1. Special-purpose, custom-made I. Operato...

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... K s and S (Eq. 15), and by measuring u s and u n , Eqs. 26 and 28 give us functional descriptions of the soil s D(u) and K(h). These capillary and gravity properties allow us to infer some pore-geo- metric ... geometry in 2- D and 3-D (m ϭ 2 and 3) ensures that the infiltration rate finally arrives at a true steady-state value, v ϱ . In Fig. 2, the time taken to realise v...

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... subsequent documents: 1981a: NF-X-1 1-6 83; 1981b: NF-X-1 1-6 30; 19 82: NF-X-1 1-6 42; 1983a: NF-X-1 1-6 85; 1983b: NF-X-1 1-6 93; 1983c: NF-X-3 1-1 07; 1984: NF-X-1 1-6 82; 1990: NF-X-1 1-6 61; 19 92: NF-X-1 1-6 67; ... stony soil. Geoderma. 63 :26 5 27 5. Burt, R., Reinsch, T. G., and Miller, W. P. 1993. A micro-pipet method for water-dispersible clay. Commun. Soil...

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... density of soil clods. J. Soil Sci. 24 : 23 9 24 3. Campbell, D. J. 1976. The occurrence and prediction of clods in potato ridges in relation to soil physical properties. J. Soil Sci .27 :1–9. Campbell, ... functions and relationships to texture. Catena 29 :22 3 23 7. Russell, E. W., and W. Balcerek. 1944. The determination of the volume and airspace of soil clods. J. A...

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... 1969; Soileau et al., 1974; Free- man and Smart, 1976; Karnok and Kucharski, 19 82) . The most recent are at Pell- ston, Michigan, U.S.A. (Fogel and Lussenhop, 1991) and Bangor, Wales (Sack- ville-Hamilton ... soil depths, can be prepared in the same way. Unlike pinboard and soil coring methods, this technique can be used on stony soils. The method is, however, labor-intensive...

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