STUDY OF COMPACTION EFFECT ON THE ACTIVE PORES ON CONDUCTIVITY WATER OF THE LOAMY SOIL USING DISK INFILTROMETER

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RAMEZANI N.; SAYYAD G.; BARZEGAR A.R.; mansuri y.

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Journal: Journal of Irrigation Sciences and Engineering Year:2012 | Volume:35 | Issue:1 Page(s): 61-69

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Title

STUDY OF COMPACTION EFFECT ON THE ACTIVE PORES ON CONDUCTIVITY WATER OF THE LOAMY SOIL USING DISK INFILTROMETER

Author(s)

RAMEZANI N. | SAYYAD G. | BARZEGAR A.R. | mansuri y. | Issue Writer Certificate

Keywords

EFFECTIVE POROSITYQ3

NUMBER OF PORESQ2

PPERCENT FLOW THROUGH PORESQ2

HYDRAULIC CONDUCTIVITYQ2

Abstract

The major topic in the study of the compactionis the soil pore size and type. Soil compaction can be significantly reduced with changes in soil pore volume, water infiltration and availability of plants to air and water. Sum effects of the above may lead to reduced soil quality.Therefore a field study was performed to evaluate the effect of soil compaction on movement of water in the pores (coarse and medium size pores) of loamy soil. A completely randomized block was designed with three replications, applying blank(No teraffic passing), once, twice, three times, four times and eight times of tractor passings. NUMBER OF PORES and percent flow through them with EFFECTIVE POROSITY and hydraulic conductivities (saturated and unsaturated), was determined in the field using disc infilterometer in four potentials (0, -3, -5and -15 cm of water). Our results revealed that in all of the treatments medium size pore swere many times of large ones hence, both sizes decreased with compaction. Results of disc Infilterometer showed that coarse and medium size pores (macro and meso pores) of eight times tractorpassings relative to control decreased 85 and 62.5 percent respectively. The major effect of compaction was on the large size pores. The medium pore size was more impressed than large pore size. N umber of medium pores in the soil was less than large ones.

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APA: Copy

RAMEZANI, N., SAYYAD, G., BARZEGAR, A.R., & mansuri, y.. (2012). STUDY OF COMPACTION EFFECT ON THE ACTIVE PORES ON CONDUCTIVITY WATER OF THE LOAMY SOIL USING DISK INFILTROMETER. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 35(1), 61-69. SID. https://sid.ir/paper/217230/en

Vancouver: Copy

RAMEZANI N., SAYYAD G., BARZEGAR A.R., mansuri y.. STUDY OF COMPACTION EFFECT ON THE ACTIVE PORES ON CONDUCTIVITY WATER OF THE LOAMY SOIL USING DISK INFILTROMETER. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2012;35(1):61-69. Available from: https://sid.ir/paper/217230/en

IEEE: Copy

N. RAMEZANI, G. SAYYAD, A.R. BARZEGAR, and y. mansuri, “STUDY OF COMPACTION EFFECT ON THE ACTIVE PORES ON CONDUCTIVITY WATER OF THE LOAMY SOIL USING DISK INFILTROMETER,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 35, no. 1, pp. 61–69, 2012, [Online]. Available: https://sid.ir/paper/217230/en

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