Measurement of vertical water percolation through different soil textures of paddy field during rice growth season
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2014, Vol 2, Issue 5
Abstract
The water percolation loss beyond root zone in the soil is one of the important parameters to determine water requirement of rice plant. If the amount of water percolation rate into the soil is estimated more carefully, determination of water requirement will be evaluated better and designing for system of irrigation, drainage and related establishments will be more easily done. The purpose of this research is determination the amount of irrigation water losses via vertical percolation in the paddy soils in rice growth duration. This study was carried out in a randomized complete block design (RCBD) with three replications in different areas of Guilan province in 1999. Seven areas which were different in the surface soil texture especially on their clay content or other particle size distribution were selected. For determining of water losses as vertical percolation was used quick method. The soils were sampled contemporary and the effects of some soil physical parameters on vertical percolation were studied too. The soil textures were consisted of: Sandy Loam, Loam, Clay Loam, Silty Loam, Clay and Silty Clay Loam. The results have shown that some physical parameters such as bulk density and particle size distribution especially clay content and sand fractions can be significantly effective on the amount of vertically percolated water. The values of adjusted determination coefficient of linear and nonlinear regressions (adj. R2) for above variables on vertical percolation for bulk density, clay, and sand percentage were 0.32, 0.91 and 0.79 respectively. The mean comparison of vertical percolation showed four different classes of vertical percolation at the 5% level by DMRT: Class I- Very high vertical percolation with 0.73 cm.day-1 or higher, in extremely light soil textures with clay contents less than 8%. Class II- High vertical percolation with 0.54 cm.day-1 in light soil textures with 8 -16% clay content. Class III- Medium vertical percolation with 0.32 cm.day-1 in medium soil textures with 16 - 44% clay content. Class IV- low vertical percolation with 0.15 cm.day-1 in heavy soil textures with more than 44% clay content.
Authors and Affiliations
Teimour Razavipour| Members of scientific board, Rice Research Institute of Iran, Ali Reza Farrokh| Young Researchers Club, Rasht Branch, Islamic Azad University, Rasht, Iran
Keywords
Related Articles
- EP ID EP13227
- DOI -
- Views 327
- Downloads 13
Determination of optimum transplanting time for chamomile (Matricaria chamomilla L.)
Performance of Chamomile (Matricaria chamomilla L.) was evaluated on twelve transplanting dates that were arranged at 30 days interval; during 2013-2014 on experimental field of Wondo Genet agricultural research center...
Antibacterial activity of silver Nanoparticles produced by Rosmarinus officinalis L leaf extract against some human pathogenic bacteria
The synthesis of nanoparticles from biological processes is evolving a new era of research interests in nanotechnology. The aim of this study was to determined antibacterial activity of silver nanoparticles produced by...
Effect of gibberellic acid and benzylaadenine growth regulators on offsets production of Aloe Barbadensis at greenhouse conditions
The effect of Gibberellic Acid (GA3) and Benzyladenine (BA) on Aloe vera was evaluated at pot cultivation conditions. This study was performed in two factorial test based on complete random plan and 4 repeats with 12 t...
The Chemical Composition and Antimicrobial Activity of Essential Oils of Vaccinium Arctostaphylos L.
Objective: The growing resistance of different bacteria to antibiotic chemical drugs have become the global issue. This investigation is the first study of the antimicrobial activity of the essential oil of flowering a...
Performance Comparison of Gaussian and Elliptic High Pass Filter
In this paper, Gaussian and elliptic high pass filters are analyzed for image sharpening qualitatively and quantatively . The filters are implemented in frequency domain using matlab software. Experiments are performed...