Volume 9, Issue 3 (fall 2005)
jwss 2005, 9(3): 93-103 |
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H. Naghavi, M. A. Hajabbasi, M. Afyuni. Effect of Manure on Hydraulic Characteristics and Bromide Movement in a Sandy Loam Soil of Kerman. jwss 2005; 9 (3) :93-103
URL: http://jstnar.iut.ac.ir/article-1-367-en.html
URL: http://jstnar.iut.ac.ir/article-1-367-en.html
Abstract: (30796 Views)
The objective of this study was to evaluate effects of cow manure on soil hydraulic properties and bromide leaching in a sandy loam soil (coarse loamy mixed, Typic Torrifluvents). Manure was applied at 0, 30, and 60 tha-1 at three replications in a completely random design. Three months after manure application potassium bromide (KBr) at rate of 300 Kg ha-1 Br was uniformly applied on the surface. Soil bulk density, porosity, organic matter, and soil moisture at18 levels of matric potentials were determined. Soil samples to the depth of 105 cm at 15-cm increments were collected after 100, 200 and 400 mm of irrigation. Soil bulk density, porosity, organic matter content, and soil moisture at different levels of matric potential increased significantly with manure application. Manure application also significantly affected the hydraulic parameters. Bromide leaching was significantly lower in plots with manure application and the greatest leaching occurred at the zero manure application treatment. The center of mass evaluation indicated a relatively similar result with measured values.
Keywords: Soil physical properties, Cow manure, Bromide leaching, Hydraulic coefficients, Soil moisture characteristics
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