Soil and Environmental Analysis: Physical Methods - Chapter doc
Soil and Environmental Analysis: Physical Methods - Chapter doc
... images of soil porosity for analysing soil compaction aroundroots. Soil Sci. Soc. Am. J. 60: 895 –901.Bruce, R. R., and Luxmoore, R. J. 1986. Water retention: Field methods. In: Methods of Soil ... B. W. 1980. Soil Classification for England and Wales. Soil Survey Tech. Monogr.No. 14. Harpenden, U.K.Ball, B. C., and Hunter, R. 1980. Improvements in the Routine Determination of Soil Pore ... timeduration to, field capacity. S. Afr. J. Plant Soil 1 : 126 –131.Beven, K. 1981. Micro-, meso-, macroporosity and channeling flow phenomena in soils. Soil Sci. Soc. Am. J. 45:1245.Bird, N. R. A....
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Soil and Environmental Analysis: Physical Methods - Chapter 2 doc
... soil water potential. Soil Sci. Soc. Am. J. 46:900 –904.Campbell, G. S., and W. H. Gardner. 1971. Psychrometric measurement of soil water po-tential: Temperature and bulk density effects. Soil ... field. Plant Soil 97 :145–149.McGowan, M. 1974. Depths of water extraction by roots: Applications to soil- water bal-ance studies. In: Isotopes and Radiation Techniques in Soil Physics and IrrigationStudies. ... hydraulic prop-erties of the soil. Soil Sci. Soc. Am. Proc. 39:424 – 430.Aslyng, H. C. 1963. Soil physics terminology. Int. Soc. Soil Sci. Bull. 23 :7–10.Biesheuval, P. M., R. Raangs, and H. Verweij....
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Soil and Environmental Analysis: Physical Methods - Chapter 9 doc
... strength and liquidity index and also be-tween compression index and plasticity index (Wroth and Wood, 1978).C. Other Methods Several workers have devised methods of measuring liquid and plastic ... carboniferous clay soils in north cen-tral Ireland and their significance. Ir. J. Agric. Res. 15:129 –135.Nagaraj, T. S., and M. S. Jayadeva. 1981. Re-examination of one-point methods of liquidlimit ... topsoils using a drop-cone pene-trometer. J. Soil Sci. 26 :234–240.Campbell, D. J. 1976a. The occurrence and prediction of clods in potato ridges in relationto soil physical properties. J. Soil...
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Soil and Environmental Analysis: Physical Methods - Chapter 10 docx
... between soil strength, bulk density and soil water pressure head of sandy top-layers of grass sportsfields. Z. Vegetationstech-nik 1:53 –58.Voorhees, W. B., D. A. Farrell, and W. E. Larson. 1975. Soil ... 1980. A new hand-held recordingpenetrometer for soil studies. J. Soil Sci. 31 : 279–296.Ball, B. C., and M. F. O’Sullivan. 1982. Soil strength and crop emergence in direct drilled and ploughed ... diameter and penetra-tion rate.Care must be taken, when sampling soils for needle-penetrometer measure-ments, that the soil is compressed as little as possible during coring. Soil is com-pacted...
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Soil and Environmental Analysis: Physical Methods - Chapter 4 pot
... Bureau of Standards.Amoozegar, A., and Warrick, A. W. 1986. Hydraulic conductivity of saturated soils: field methods. In: Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods (A. ... Soils 143Table 1 Hydraulic Conductivity Values of Saturated Soils Soil Hydraulic conductivity(mm dϪ1)Fine-textured soils Ͻ 10Soils with well-defined structure 10 –1000Coarse-textured soils ... seepage into pits. Soil Sci.Soc. Am. J. 48: 10 –15.Bouma, J. 1977. Soil Survey and the Study of Water in Unsaturated Soil. Soil Survey Pa-pers, No. 13. Wageningen: Netherlands Soil Survey Institute,...
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Soil and Environmental Analysis: Physical Methods - Chapter 5 pot
... Equipment5. Standard for soil laboratory4. General-purpose, off-the-shelf3. Easily made in average machine shop2. Special-purpose, off-the-shelf1. Special-purpose, custom-madeI. Operator ... seal the soil col-umn for unsaturated measurements) and protects the soil column in the field and during transport to a laboratory. Somewhat more disturbed soil columns from en-tire soil profiles ... samples.Ahuja and El-Swaify (1976) determined the soil hydraulic properties bymeasuring one-step cumulative inflow or outflow from short soil cores throughhigh-resistance plates at one end and measuring...
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Soil and Environmental Analysis: Physical Methods - Chapter 6 pptx
... Ks and S (Eq. 15), and by measuring us and un, 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 ... USDA-SEA-AR, ARM-W-10/July 1979, pp. 85–90.Amerman, C. R., et al. 1979. Proceedings of the Rainfall Simulator Workshop, Tucson,Arizona, March 7–9, 1979. Sidney, Montana: USDA-SEA-AR, ARM-W-10/July1979, ... heavy clay soils: I. J. Agr. Sci. 26:114 –127.Childs, E. C. 1967. Soil moisture theory. Adv. Hydrosci. 4 : 73 –117.Childs, E. C., and Collis-George, N. 1948. Soil geometry and soil- water equilibria,...
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Soil and Environmental Analysis: Physical Methods - Chapter 7 ppsx
... 1981a: NF-X-1 1-6 83; 1981b: NF-X-1 1-6 30; 1982: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; 1992: NF-X-1 1-6 67; 1997a: NF-X-1 1- 671; ... d’air. Doc. NF-X-1 1- * There is a very large number of Standards dealing with aspects of particle size analysis. No Stan-dards organization publishes all its Standards in one volume. However, Standards ... in soils. Barak et al. (1996) went further, and concludedthat fractal theory offers no useful description of sand particles in soils and hencedoubted the applicability of these methods to soils...
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Soil and Environmental Analysis: Physical Methods - Chapter 8 pot
... undisturbed soil cores bygamma-ray attenuation. New Zealand Soil Bureau, Report 67.Sharratt, B. S. 1996. Tillage and straw management for modifying physical- properties of asub-arctic soil. Soil Till. ... direct and indirect methods are detailed. Direct methods discussed in-clude the core sampling, rubber balloon, sand replacement, and clod methods. Indirect methods include both the backscatter and ... coastal lowlands of south-eastQueensland. Aust. J. Soil Res. 33: 11–18.Coppola, M., and P. Reiniger. 1974. Influence of the chemical composition on the gamma-ray attenuation by soils. Soil Sci....
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Soil and Environmental Analysis: Physical Methods - Chapter 12 pps
... 1969; Soileau et al., 1974; Free-man and Smart, 1976; Karnok and Kucharski, 1982). 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. Unlikepinboard and soil coring methods, this technique can be used on stony soils. Themethod is, however, labor-intensive and time-consuming, and ... to pack air-dried soil around the tube to get goodcontact between glass and soil. Observations were made of the effects of cultiva-tion on spring barley and oilseed rape.Sanders and Brown (1978)...
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