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Paper Information

Title: 

STUDYING OF LEACHING EFFICIENCY OF SALINE SOILS IN EDUCATIONAL FARM OF ZABOL UNIVERSITY

Type: PAPER
Author(s): SOLTANI R.,SHAMOHAMMADI Z.,AFRASIYAB P.
 
 
 
Name of Seminar: INTERNATIONAL CONFERENCE ON WATER CRISIS
Type of Seminar:  CONFERENCE
Sponsor:  zabol University
Date:  2009Volume 1
 
 
Abstract: 

THIS RESEARCH WAS PERFORMED IN COMPLETE RANDOMIZED BLOCKS DESIGN WITH FOUR LEACHING TREATMENTS WATER DEPTH; 25, 50, 75, 100 CM AND MARKER (WITHOUT LEACHING) IN FOUR INTERACTIONS. LEACHING EXPERIMENTS PERFORMED TO APPLICATION OF TOTAL DEPTH OF LEACHING WATER (100 CM) AND 25 CM FOR EACH FOUR FREQUENCY IN SIXTEEN BLOCKS (EACH BLOCK IS 1*1 M2). THIS RESEARCH PERFORMED IN RELATED TO CALIBRATION OF REEVE (1957), DIELEMAN (1963) AND PAZIRA & KESHAVARZ (1998) EMPIRICAL LEACHING MODELS - EACH OF THEM ARE FOLLOWING FROM A SPECIAL MATHEMATICAL FORM – TO INTRODUCE BEST EMPIRICAL MODEL THAT HAVE HIGH CORRELATION COEFFICIENT WITH EARNED FARM EXPERIMENTAL DATA. RESULTS OF SOIL ANALYSIS SHOWED THAT SOIL CLASSIFICATION FROM S3A2 AT BEFORE BEGINNING THE EXPERIMENT REDUCED TO S2A1 AFTER APPLYING ONE METER OF LEACHING WATER DEPTH. THE RESULTS OF CALIBRATION EMPIRICAL LEACHING MODELS SHOWED THAT EMPIRICAL MODEL OF REEVE (1957) WAS BETTER FITTED TO SOIL DESALINIZATION DATA IN COMPARE WITH TWO ELSE MODEL. ALSO THE DESALINIZATION CURVE WAS FITTED TO FARM TEST OBTAINING RESULTS WITH MAXIMUM OF CORRELATION COEFFICIENT OF OBSERVANT DATA, FOLLOWED INVERSE FORM OF MATHEMATICAL FUNCTION.

 
Keyword(s): CALIBRATION, LEACHING, EMPIRICAL LEACHING MODELS, SALINE SOILS, EDUCATIONAL FARM OF ZABOL UNIVERSITY
 
 
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