Year: 2023
Type: article
Abstract: This study was conducted in Dinajpur from 18 January to 11 May 2020 following lysimeter and magic pipe method at different growth stages of BRRI dhan-28 with respect to soil parameter (sand, silt and clay) to determine the Seepage and Percolation (S&P) and evapotranspiration (ET) by the lysimeter method and general water loss including ET and S&P through magic pipe.The soil was loam having 37.60% sand, 36.00%silt and 26.40% clay.Water loss (S&P) was combined with evapotranspiration to determine the total water requirement.Lysimeter was employed and S&P loss was found 4.73 mm day -1 with an average 543.00 mm for the whole growing season.The estimated ET for the total growing season was found to be 686.90mm with an average of 5.9 mm day -1 .The total water requirement was 1229.90 mm.Through magic pipe 1, 2, 3, water loss was found 13.568, 13.568, and 13.578 mm/day during irrigation period.The S&P loss for three different plots were 8.09, 8.091, and 8.106 mm/day.The crop water requirements were 35.03, 32.83 and 32.14 % for vegetative, reproductive and ripening stages respectively.The average S&P loss was 6.41 mm/day and evapotranspiration were 5.9 mm/day.Among total estimated losses, about 44 % S&P loss and 56 % ET was evaluated respectively.Land soaking, land preparation, and surface drainage loss was not included in this water requirement.
DOI: 10.59125/jst.21106
Authors: M.S. Rahman, M.M.A. Rauf, M. Fahmida
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W4386926993